470 MHz Filters, Combiners, Amplifiers for Mobile Communications

470 MHz Filters, Combiners, Amplifiers for Mobile Communications
Quality leads the way
“Quality leads the way“ is our company motto and this best describes the product philosophy of
KATHREIN-Werke KG.
Kathrein’s quality assurance system is certified in
accordance with ISO 9001. It covers not only development, production and marketing, but also other
areas, such as administration and the correct delivery of products to our customers.
Our customers are invited to benefit from
Kathrein’s expertise and to discuss any special
requirements with us.
rtificate
ISO 9001 Ce
Use our know-how!
Target Groups:
This catalogue is aimed at
• System suppliers of mobile communication networks
• Manufacturers of mobile radio equipment
• Operators of various mobile communication networks
• Authorities and organisations concerned with safety issues
• Community offices, authorities, organisations and private companies
Edition 2005
Internet: http://www.kathrein.de
KATHREIN-Werke KG . Phone +49 8031 184-0 . Fax +49 8031 184-494
Anton-Kathrein-Straße 1 – 3 . P.O. Box 10 04 44 . 83004 Rosenheim . Germany
Antennen . Electronic
Filters
68 – 87.5 MHz
146 – 174 MHz
380 – 470 MHz
Duplexers
68 ... 87.5 MHz
146 ... 174 MHz
380 ... 470 MHz
Multiband Combiners and
Transmitter Combiners
Filter Transmitter Combiners
Hybrid Transmitter Combiners
Multiband Combiners
System Components
3-dB Couplers
4.7-dB, 6-dB, 7-dB, 10-dB Couplers
Hybrid Ring Junctions
Decoupled Power Splitters
Circulators
DC-Stops
Attenuators
50-Ω Loads
Active Multicouplers
68 – 87.5 MHz
146 – 174 MHz
380 – 470 MHz
Combiner Systems
3
Summary of Types
The articles are listed by type number in numerical order
Type No.
717
718
718
718
718
718
719
719
719
719
719
719
719
719
719
720
720
720
720
720
720
720
720
721
721
721
721
721
721
721
721
721
721
721
721
721
721
721
721
721
721
721
721
721
722
722
722
722
722
722
723
723
723
724
724
724
724
724
724
725
4
401
290
313
388
500
987
035
069
084
090
237
628
782
785
792
209
296
297
298
642
877
938
942
000
060
062
138
687
751
752
753
754
755
756
757
758
759
760
761
762
767
784
785
786
437
440
488
675
916
917
013
594
790
346
347
348
579
580
581
168
Page
125
82
84
72
108
64
108
64
66
125
84
72
131
82
108
66
119
131
125
74
74
119
131
119
125
123
110
20
18
18
18
18
36
36
36
36
52
52
52
52
54
20
38
38
111
111
131
125
38
38
110
54
54
121
127
135
20
20
54
56
Type No.
725
725
725
726
727
727
728
728
729
730
780
780
780
780
780
782
782
782
782
782
782
782
782
782
782
782
782
782
782
782
782
782
782
782
782
784
784
784
784
784
784
784
784
784
784
784
784
790
790
790
790
790
790
790
790
790
790
790
791
791
234
870
871
941
621
622
024
954
870
092
060
232
233
234
235
10189
10231
10361
10362
10363
10364
10365
10366
10367
10369
10370
10371
10372
10373
10374
10375
10376
10377
10380
10460
10140
10063
10165
10166
10167
10168
10175
10235
10236
10237
10238
10367
044
215
244
589
590
594
957
964
965
966
967
255
374
Page
127
121
135
22
150
151
34
111
40
132
129
148
149
146
147
134
134
86
86
86
88
88
90
90
112
87, 89, 91
86
86
86
88
88
90
90
87, 89, 91
113
104
106
104
104
104
104
136
138
138
138
138
140
99
136
110
131
131
99
110
28
28
44
44
80
8
Type No.
791 463
791 630
791 644
791 646
791 649
791 652
791 730
791 918
791 919
791 920
791 921
792 047
792 059
792 061
792 064
792 067
792 100
792 101
792 102
792 119
792 331
792 777
792 978
792 979
793 097
793 098
793 099
793 100
793 101
793 102
793 103
793 104
793 205
793 206
793 276
793 277
793 297
793 299
793 306
793 308
793 356
793 357
K 60 21 21 A
K 60 21 21 B
K 60 21 21 12 A
K 60 21 21 12 B
K 60 21 21 14 A
K 60 21 21 14 B
K 60 21 21 15 A
K 60 21 21 15 B
K 60 21 41 A
K 60 21 41 B
K 60 21 41 12 A
K 60 21 41 12 B
K 60 21 41 14 A
K 60 21 41 14 B
K 60 21 41 15 A
K 60 21 41 15 B
K 62 26 11 1
K 62 26 20 1
Page
111
137
106
106
106
106
24
139
139
139
139
8
102
102
102
102
98
98
98
34
131
131
76
76
119
119
119
119
119
125
125
125
98
98
122
128
100
100
100
100
62
70
153
153
153
153
153
153
153
153
152
152
152
152
152
152
152
152
140
141
Type No.
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
K
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
62
63
63
63
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
64
65
65
65
65
65
65
65
65
65
65
65
26
26
26
26
26
26
26
26
26
26
26
26
26
70
70
70
70
73
73
70
70
73
00
12
13
21
21
21
21
21
31
31
31
31
32
32
32
32
33
33
33
33
41
41
41
41
50
00
21
21
31
31
32
32
33
33
41
41
20
21
21
30
30
31
31
40
41
50
50
51
61
21
27
41
47
21
41
21
27
21
21
41
41
25
26
45
46
47
21
27
41
47
21
27
41
47
21
27
41
47
23
24
43
44
4
21
25
26
21
27
21
27
21
27
25
26
7
1
7
1
7
1
7
1
1
1
7
1
1
1
1
1
1
1
1
1
1
Page
141
141
141
141
141
141
141
141
141
141
141
141
140
124
124
118
118
126
120
130
130
133
26
10
10
30
34
12
16
16
32
32
14
14
32
32
14
14
32
32
14
14
78
78
68
68
108
42
46
50
48
48
48
48
48
48
92
92
Filters
Filters
68 – 87.5 MHz
146 – 174 MHz
380 – 470 MHz
5
6
Summary of Articles
Filters:
Description
Type No.
Frequency range
... tunable bandwidth
– fixed bandwidth (not tunable)
Max. input power
3-cavity Band-pass Filter
3-cavity Band-pass Filter
2-cavity Band-pass Filter
3-cavity Band-pass Filter
Band-pass Filter
1-cavity Band-stop Filter
1-cavity Band-stop Filter
2-cavity Band-stop Filter
2-cavity Band-stop Filter
3-cavity Band-stop Filter
3-cavity Band-stop Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
Low-pass Filter
Page
791 374
792 047
K 64 12 41
K 64 13 41
K 64 21 45 1
K 64 31 41
K 64 31 47
K 64 32 41
K 64 32 47
K 64 33 41
K 64 33 47
K 64 21 46 1
K 64 21 47 1
721 751
721 752
721 753
721 754
721 784
721 687
724 579
724 580
726 941
74 – 78 MHz
84 – 88 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 ... 87.5 MHz
68 – 87.5 MHz
50 W
50 W
50 W
50 W
200 W
300 W
300 W
300 W
300 W
300 W
300 W
200 W
200 W
100 W
100 W
100 W
100 W
100 W
100 W
100 W
100 W
40 W
8
8
10
10
12
14
14
14
14
14
14
16
16
18
18
18
18
20
20
20
20
22
3-cavity Band-pass Filter
2-cavity Band-pass Filter
2-cavity Band-pass Filter
3-cavity Band-pass Filter
Band-pass Filter
1-cavity Band-stop Filter
1-cavity Band-stop Filter
2-cavity Band-stop Filter
2-cavity Band-stop Filter
3-cavity Band-stop Filter
3-cavity Band-stop Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
Low-pass Filter
791 730
K 64 00 21
790 965
790 964
K 64 21 25 1
K 64 31 21
K 64 31 27
K 64 32 21
K 64 32 27
K 64 33 21
K 64 33 27
792 119
728 024
K 64 21 26 1
721 755
721 756
721 757
721 758
721 785
722 916
721 786
722 917
729 870
150 ... 169 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 ... 174 MHz
146 – 174 MHz
50 W
50 W
75 W
100 W
200 W
300 W
300 W
300 W
300 W
300 W
300 W
15 W
200 W
200 W
100 W
100 W
100 W
100 W
100 W
100 W
100 W
100 W
40 W
24
26
28
28
30
32
32
32
32
32
32
34
34
34
36
36
36
36
38
38
38
38
40
2-cavity Band-pass Filter
2-cavity Band-pass Filter
3-cavity Band-pass Filter
Band-pass Filter
1-cavity Band-stop Filter
1-cavity Band-stop Filter
2-cavity Band-stop Filter
2-cavity Band-stop Filter
3-cavity Band-stop Filter
3-cavity Band-stop Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
S-P Filter
Low-pass Filter
K 65 00 21
790 967
790 966
K 65 21 25 1
K 65 31 21
K 65 31 27
K 65 32 21
K 65 32 27
K 65 33 21
K 65 33 27
K 65 21 26 1
721 759
721 760
721 761
721 762
723 594
723 790
721 767
724 581
725 168
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
380 ... 470 MHz
400 – 470 MHz
50 W
50 W
50 W
200 W
300 W
300 W
300 W
300 W
300 W
300 W
200 W
100 W
100 W
100 W
100 W
100 W
100 W
100 W
100 W
50 W
42
44
44
46
48
48
48
48
48
48
50
52
52
52
52
54
54
54
54
56
7
Band-pass Filter
74 ... 88 MHz
The band-pass filter is suitable for use as
a receiving or transmitting filter for one or
several receivers, or one transmitter.
It can be used:
– to improve the input selectivity of
receivers and amplifiers,
– to increase the isolation of transmitters,
whose respective antennas are mounted
close together,
– to suppress noise side bands and
intermodulation products,
– as a combiner component.
Design and construction:
The band-pass filter consists of three
capacitively coupled helix resonators.
Filter characteristics:
Broad pass band with low insertion loss
and high stop band attenuation outside of
the pass band.
791 374
Technical Data
Type No.
791 374
Pass band
Insertion loss
Pass band bandwidth
VSWR
Impedance
Input power
Temperature range
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
74 – 78 MHz
8
792 047
84 – 88 MHz
< 0.7 dB
4.0 MHz
< 1.2 (at pass band)
50 Ω
< 50 W
–20 … +50 °C
N female
Aluminium / copper, silver-plated
With 4 screws (max. 4 mm diameter)
0.9 kg
188 mm x 80 mm x 153 mm
140 mm x 68 mm x 130 mm
(with connectors)
Band-pass Filter
74 ... 88 MHz
Typical attenuation curves
Attenuation/dB
791 374
0
5
10
15
20
25
30
35
40
45
50
50
55
60
65
70
75
80
85
90
95
100
95
100
Frequency/MHz
Attenuation/dB
792 047
0
5
10
15
20
25
30
35
40
45
50
50
55
60
65
70
75
80
85
90
Frequency/MHz
9
Band-pass Filter
68 … 87.5 MHz
The band-pass filter is suitable for use as
a receiving or transmitting filter for one
receiver or transmitter.
It can be used:
– to improve the input selectivity of
receivers and amplifiers,
– to increase the isolation of transmitters,
whose respective antennas are mounted
close together,
– to suppress noise side bands and intermodulation products,
– as a combiner component.
Design and construction:
The band-pass filter consists of two or three
high Q capacitively coupled resonators.
The pass band frequency and the insertion
loss are tunable.
K 64 12 41
Filter characteristics:
Narrow pass band with low insertion loss,
high stop band attenuation, variable filter
response corresponding to the desired stop
band attenuation.
Tuning:
The band-pass filter is tuned to the desired
pass band frequency and insertion loss at
the factory. Please specify desired pass
band frequency and insertion loss (curve
A, B) when ordering.
The band-pass filter can also be tuned on
site using the supplied instructions.
K 64 13 41
Technical Data
K 64 12 41
K 64 13 41
2-cavity band-pass filter
3-cavity band-pass filter
Type No.
Frequency range
Insertion loss at fo
68 … 87.5 MHz
1 … 2 dB, tunable
Tuning examples
1.0 dB
curve A
VSWR
Impedance
Input power
Temperature range
Temperature coefficient
Connectors
Material
Colour
Installation
Weight
Packing size
Dimensions (w x h x d)
10
< 50 W
2.0 dB
1.5 dB
curve B
curve A
< 1.2 (at operating frequency)
50 Ω
< 25 W
< 50 W
–30 … +60 °C
< 18 x 10 –6 / °C
N female
Brass, silver-plated
Grey (RAL 7032)
With 4 screws (max. 6 mm diameter)
16 kg
315 mm x 195 mm x 828 mm
240 mm x 124 mm x 710 mm
(with connectors)
2.0 dB
curve B
< 25 W
24 kg
435 mm x 195 mm x 828 mm
360 mm x 124 mm x 710 mm
(with connectors)
Band-pass Filter
68 … 87.5 MHz
Typical attenuation curves
Tuning examples:
3-cavity band-pass filter
K 64 13 41
2-cavity band-pass filter
K 64 12 41
Diagram I:
Attenuation/dB
Attenuation/dB
Diagram I:
0
Detail see
diagram II
10
20
30
0
Detail see
diagram II
10
20
30
40
40
50
50
A
60
60
70
B
70
80
80
90
90
A
B
100
100
-5
-4
-3
-2
-1
f0
+1
+2
+3
+4
-5
+5
-4
-3
-2
-1
f0
+2
+3
+4
+5
Frequency/MHz
Frequency/MHz
Diagram II:
Diagram II:
0
Attenuation/dB
Attenuation/dB
+1
Detail see
diagram III
10
20
30
0
Detail see
diagram III
10
20
30
40
40
A
50
50
B
60
60
70
70
A
80
80
B
90
90
100
100
-2.5
-2.0
-1.5
-1.0
-0.5
f0
+0.5
+1.0
+1.5
+2.0
-2.5
+2.5
-2.0
-1.5
-1.0
-0.5
f0
+1.0
+1.5
+2.0
+2.5
Diagram III:
Diagram III:
0
Attenuation/dB
Attenuation/dB
+0.5
Frequency/MHz
Frequency/MHz
2
4
6
0
2
4
6
8
8
10
10
12
12
14
14
16
16
A
A
18
18
B
20
-0.5
-0.4
-0.3
-0.2
-0.1
f0
+0.1
+0.2
+0.3
Frequency/MHz
+0.4
B
+0.5
20
-0.5
-0.4
-0.3
-0.2
-0.1
f0
+0.1
+0.2
+0.3
+0.4
+0.5
Frequency/MHz
11
Band-pass Filter
68 … 87.5 MHz
The band-pass filter is suitable for use as
a receiving or transmitting filter for one
receiver or transmitter.
It can be used:
– to improve the input selectivity of
receivers and amplifiers,
– to increase the isolation of transmitters,
whose respective antennas are mounted
close together,
– to suppress noise side bands and intermodulation products,
– as a combiner component.
Design and construction:
The band-pass filter is designed as a temperature stabilized λ/4 coaxial resonator.
The pass band frequency and the insertion
loss are tunable.
Filter characteristics:
Narrow pass band with low insertion loss,
high stop band attenuation, variable filter
response corresponding to the desired stop
band attenuation.
Combination of several band-pass filters:
Several band-pass filters can be interconnected using cables of an electrical length
of λ/4. This causes an increase in the edge
steepness of the filter curve as well as the
bandwidth of the pass band. The individual
filters are tuned to the center frequency of
the complete filter.
Insertion loss of the filter combination =
Sum insertion loss of the individual filters +
cable attenuation of the interconnecting
cables (about 0.1 dB per cable).
Stop band attenuation of the filter combination = Sum stop band attenuation of individual filters + additional stop band attenuation.
If the stop band attenuation of the individual
filters exceeds 10 dB, approximately the
following applies:
additional stop band attenuation =
(n – 1) x 5 dB;
n = number of individual filters.
For special applications band-pass filters
can also be interconnected with S-P filters.
Tuning:
The band-pass filter is tuned to the desired
pass band frequency and insertion loss at
the factory. Please specify desired pass band
frequency and insertion loss (curve A, B, C,
D) when ordering.
K 64 21 45 1
Technical Data
Type No.
K 64 21 45 1
Frequency range
Insertion loss at fo
68 … 87.5 MHz
0.5 … 2 dB, tunable
VSWR
Impedance
Input power
Temperature range
Effect of temperature
Connectors
Material
Installation
Attached hardware
The band-pass filter can also be tuned on
site using the supplied instructions.
12
Weight
Packing size
Dimensions (w x h x d)
Tuning examples
0.5 dB
1.0 dB
1.5 dB
2.0 dB
curve A
curve B
curve C
curve D
< 1.5 (at operating frequency)
50 Ω
< 200 W
–30 … +60 °C
< 0.2 kHz / °C
N female
Outer conductor: Aluminium
Inner conductor: Brass, silver-plated
Free standing or wall mounting
with mounting angles
Band-pass filter with 2 mounting angles
and 2 connecting pieces
16 kg
207 mm x 1660 mm x 207 mm
190 mm x max. 1500 mm x 190 mm
(with tuning rod)
Band-pass Filter
68 … 87.5 MHz
Typical attenuation curves
Tuning examples:
Attenuation/dB
Diagram I:
0
5
Detail see
diagram II
10
15
20
25
30
35
A
40
B
45
C
D
50
-5
-4
-3
-2
-1
f0
+1
+2
+3
+4
+5
Frequency/MHz
Attenuation/dB
Diagram II:
0
5
Detail see
diagram III
10
15
20
A
25
B
C
30
D
35
40
45
50
-1.25
-1.0
-0.75
-0.50
-0.25
f0
+0.25 +0.50 +0.75 +1.00 +1.25
Frequency/MHz
Attenuation/dB
Diagram III:
0
1
2
3
4
5
6
7
A
8
9
D
10
-0.25
-0.20
-0.15
-0.10
-0.05
f0
C
B
+0.05 +0.10 +0.15 +0.20 +0.25
Frequency/MHz
13
Band-stop Filter
68 … 87.5 MHz
The band-stop filter is used:
– to attenuate interfering signals,
– to increase the isolation between transmitter and receiver.
Design and construction:
The band-stop filter consists of capacitively
shortened λ/4 coaxial resonators. The resonators of the multi cavity band-stop filters
are interconnected by cables of λ/4 length.
The stop band frequency and the stop band
attenuation are tunable.
1-cavity band-stop filter
K 64 31 41
Filter characteristics:
Narrow stop band with high stop band
attenuation, low insertion loss outside of
the stop band.
Tuning:
The band-stop filter is tuned to the desired
stop band frequency at the factory.
When ordering please specify stop band
frequency.
2-cavity band-stop filter
K 64 32 41
The band-stop filter can also be tuned on
site using the supplied instructions.
The resonators of the 2-cavity or 3-cavity
band-stop filters can be tuned independently. In this way, 2 or 3 different interfering signals can be suppressed or one
single interfering signal can be especially
attenuated.
3-cavity band-stop filter
K 64 33 47
Technical Data
Type No.
N female
7-16 female
Version
Frequency range
Impedance
Input power
Temperature range
Temperature coefficient
Material
Colour
Installation
Weight
Packing size
Dimensions (w x h x d)
14
K 64 31 41
K 64 31 47
1-cavity
band-stop filter
K 64 32 41
K 64 32 47
K 64 33 41
K 64 33 47
2-cavity
3-cavity
band-stop filter
band-stop filter
68 … 87.5 MHz
50 Ω
< 300 W (at insertion loss < 1 dB)
–30 … +60 °C
< 18 x 10 –6 / °C
Brass, silver-plated
Grey (RAL 7032)
With 4 screws (max. 6 mm diameter)
8.3 kg
16.6 kg
25.0 kg
207 mm x 207 mm x 865 mm
285 mm x 210 mm x 840 mm
445 mm x 210 mm x 840 mm
120 mm x 148 mm x 710 mm
240 mm x 148 mm x 710 mm
360 mm x 148 mm x 710 mm
Band-stop Filter
68 … 87.5 MHz
Typical attenuation curves
Tuning examples:
1-cavity band-stop filter
Diagram II:
0
10
Detail see
diagram II
20
30
Attenuation/dB
Attenuation/dB
Diagram I:
0
0.5
1.0
1.5
40
2.0
50
2.5
60
3.0
70
3.5
80
4.0
90
4.5
5.0
100
-1.25
-1.0
-0.75
-0.50
-0.25
f0
-1.25
+0.25 +0.50 +0.75 +1.00 +1.25
-1.0
-0.75
-0.50
-0.25
f0
Frequency/MHz
+0.25 +0.50 +0.75 +1.00 +1.25
Frequency/MHz
2-cavity band-stop filter
Diagram II:
0
10
Detail see
diagram II
20
30
Attenuation/dB
Attenuation/dB
Diagram I:
0
0.5
1.0
1.5
40
2.0
50
2.5
60
3.0
70
3.5
80
4.0
90
4.5
100
5.0
-1.25
-1.0
-0.75
-0.50
-0.25
f0
+0.25 +0.50 +0.75 +1.00 +1.25
-1.25
-1.0
-0.75
-0.50
-0.25
f0
Frequency/MHz
+0.25 +0.50 +0.75 +1.00 +1.25
Frequency/MHz
3-cavity band-stop filter
Diagram II:
0
10
Detail see
diagram II
20
30
Attenuation/dB
Attenuation/dB
Diagram I:
0
0.5
1.0
1.5
40
2.0
50
2.5
60
3.0
70
3.5
80
4.0
90
4.5
100
-1.25
5.0
-1.0
-0.75
-0.50
-0.25
f0
+0.25 +0.50 +0.70 +1.00 +1.25
Frequency/MHz
-1.25
-1.0
-0.75
-0.50
-0.25
f0
+0.25 +0.50 +0.75 +1.00 +1.25
Frequency/MHz
15
S-P Filter
68 … 87.5 MHz
The S-P filter (Stop-Pass filter) is used to
attenuate interfering signals located extremely close to the operational frequency.
Design and construction:
The S-P filter is designed as a high Q temperature stabilized λ/4 coaxial resonator.
Using a special temperature stabilized
coupling, high stop band attenuation can
be adjusted very close to the pass band
frequency.
Filter characteristics:
Narrow pass band with low insertion loss,
high stop band attenuation at the stop
band frequency. Even in case of very small
spacing between the pass band and the
stop band frequency a high stop band
attenuation is achieved, which can not be
achieved using standard band-pass filters
of the same size.
Pass band frequency/MHz
88
83
K 64 21 46 1
78
73
68
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.2
2.4
Adjustable frequency separation/MHz
Pass band frequency
above the stop band frequency
Pass band frequency/MHz
It can be used:
– in the transmission path to suppress
side band noise and to attenuate intermodulation products at the receiving
frequencies,
– in the receiving path to attenuate transmitting frequencies,
– as a component for combiners with very
low frequency spacing.
Pass band frequency
below the stop band frequency
88
83
K 64 21 47 1
78
73
68
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
Adjustable frequency separation/MHz
Combination of several S-P filters:
Several S-P filters can be interconnected
by cables with an electrical length of λ/4.
Insertion loss of the filter combination =
Sum insertion loss of the individual filters +
cable attenuation of the interconnecting
cables (about 0.1 dB per cable). Stop band
attenuation of the filter combination =
Sum stop band attenuation of the individual
filters + additional stop band attenuation.
K 64 21 46 1
K 64 21 47 1
Technical Data
Type No.
If the stop band attenuation of the individual
filters exceeds 10 dB, approximately the
following applies:
additional stop band attenuation =
(n – 1) x 5 dB;
n = number of individual filters.
For special applications S-P filters can also
be interconnected with band-pass filters.
Tuning:
The S-P filter is tuned to the desired pass
band and stop band frequency at the
factory. Please specify desired pass band
and stop band frequency when ordering.
The S-P filter can also be tuned on site
using the supplied instructions.
Customized versions
For special applications S-P filters for even
lower frequency spacing or lower insertion
loss are available.
16
Frequency range
Insertion loss
VSWR
Impedance
Input power
Temperature range
Effect of temperature
Connectors
Material
Installation
Attached hardware
Weight
Packing size
Dimensions (w x h x d)
K 64 21 46 1
K 64 21 47 1
68 … 87.5 MHz
0.5 ±0.15 dB
< 1.5 (at operating frequency)
50 Ω
< 200 W
–20 … +60 °C
< 0.2 kHz / °C
N female
Outer conductor: Aluminium
Inner conductor: Brass, silver-plated
Free standing or wall mounting
S-P filter with 2 mounting angles
and 2 connecting pieces
16 kg
210 mm x 1660 mm x 210 mm
190 mm x max. 1500 mm x 190 mm
(with tuning rod)
S-P Filter
68 … 87.5 MHz
Typical attenuation curves
Tuning examples:
Attenuation/dB
K 64 21 46 1
0
5
A
A
B
10
15
C
B
D
E
F
C
20
D
25
E
30
F
35
40
45
50
-0.5
fo
+0.5
+1
+1.5
Frequency/MHz
Attenuation/dB
K 64 21 47 1
0
A
5 A
10
B
C
B
D
E
F
15 C
20 D
25 E
30
F
35
40
45
50
-1.5
-1
-0.5
fo
+0.5
Frequency/MHz
Curve
Frequency spacing
pass band frequency / stop band frequency
A
B
C
D
E
F
0.25 MHz
0.50 MHz
0.75 MHz
1.00 MHz
1.25 MHz
1.50 MHz
17
S-P Filter
68 … 87.5 MHz
The S-P filter (Stop-Pass filter) is suitable for
attenuating interfering frequencies, close to the
operational frequency band. It is designed for
operation with one transmitter respectively with
one or several receivers.
It can be used:
– in the transmission path for suppressing side
band noise and for attenuating intermodulation
products at the receiving frequencies,
– in the receiving path for attenuating transmitting
frequencies,
– as a duplexer component.
Design and construction:
The S-P filter consists of three or four S-P
resonators, interconnected by cables of defined
electrical length.
721 751
721 753
Filter characteristics:
721 751 / 721 752: Broad pass band with low
insertion loss in the low band, high stop band
attenuation at the stop band frequencies in the
high band.
721 753 / 721 754: Broad pass band with low
insertion loss in the high band, high stop band
attenuation at the stop band frequencies in the
low band.
Tuning:
The S-P filter can only be tuned at the factory
because of its special design. Special requests
such as: Special band spacing, switching bandwidths or attenuation can be taken into account.
When ordering please specify the desired high
and low band frequencies.
721 752
721 754
Technical Data
Type No.
Number of resonators
Frequency range
Band spacing
Switching bandwidth
Insertion loss
Stop band attenuation
VSWR
Impedance
Input power
Temperature range
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
18
721 751 (Pass band: Low band; Stop band: High band) 721 752 (Pass band: Low band; Stop band: High band)
721 753 (Pass band: High band; Stop band: Low band) 721 754 (Pass band: High band; Stop band: Low band)
3
4
68 … 87.5 MHz
Tuning examples
3 MHz
6 MHz
9.8 MHz
2 MHz
6 MHz
9.8 MHz
0.1 MHz 0.5 MHz 1.0 MHz 1.5 MHz 2.5 MHz 0.1 MHz 1.0 MHz 2.5 MHz 3.3 MHz
< 1.2 dB < 0.6 dB < 0.6 dB < 0.6 dB < 0.8 dB < 1.5 dB < 0.8 dB < 0.8 dB < 0.8 dB
> 60 dB > 65 dB > 70 dB > 65 dB > 60 dB > 60 dB > 70 dB > 75 dB > 65 dB
< 1.4 (at operating frequency)
50 Ω
< 100 W (–30 … +55 °C) / < 50 W (+55 … +70 °C)
–30 … +70 °C
N female
S-P resonators: Aluminium / copper, silver-plated; cable: RG 223/U
With 4 screws (max. 4 mm diameter)
1.0 kg
1.2 kg
235 mm x 61 mm x 165 mm
155 mm x 50 mm x 160 mm
195 mm x 50 mm x 160 mm
(with connectors)
(with connectors)
4.0 MHz
< 1.2 dB
> 60 dB
S-P Filter
68 … 87.5 MHz
Typical attenuation curves
721 751 / 721 753
721 752 / 721 754
Band spacing: 6.0 MHz
Switching bandwidth: 0.5 MHz
Band spacing: 6.0 MHz
Switching bandwidth: 1.0 MHz
0
10
721 751
Attenuation/dB
Attenuation/dB
Tuning examples:
721 753
20
30
0
10
30
40
40
50
50
60
60
70
70
80
80
90
90
100
68
721 754
721 752
20
100
70
72
74
76
78
80
82
84
86
88
68
70
72
74
76
78
Frequency/MHz
0
721 753
721 751
20
30
10
50
60
60
70
70
80
80
90
90
100
721 752
86
88
86
88
721 754
100
70
72
74
76
78
80
82
84
86
88
68
70
72
74
76
78
Frequency/MHz
82
84
Band spacing: 9.8 MHz
Switching bandwidth: 4.0 MHz
Attenuation/dB
0
721 753
721 751
80
Frequency/MHz
Band spacing: 9.8 MHz
Switching bandwidth: 2.5 MHz
Attenuation/dB
88
30
50
20
30
0
10
721 754
30
40
50
50
60
60
70
70
80
80
90
90
100
721 752
20
40
68
86
20
40
10
84
0
40
68
82
Band spacing: 9.8 MHz
Switching bandwidth: 2.5 MHz
Attenuation/dB
Attenuation/dB
Band spacing: 9.8 MHz
Switching bandwidth: 1.0 MHz
10
80
Frequency/MHz
100
70
72
74
76
78
80
82
84
Frequency/MHz
86
88
68
70
72
74
76
78
80
82
84
Frequency/MHz
19
S-P Filter
68 … 87.5 MHz
The S-P filter (Stop-Pass filter) is suitable for
attenuating interfering frequencies, close to the
operational frequency band. It is designed for
operation with one or several transmitters
respectively with one or several receivers.
It can be used:
– in the transmission path for suppressing side
band noise and for attenuating intermodulation
products at the receiving frequencies,
– in the receiving path for attenuating transmitting
frequencies,
– as a duplexer component.
Design and construction:
The S-P filter consists of three or four S-P
resonators, interconnected by cables of defined
electrical length.
Filter characteristics:
721 784 / 724 579: Broad pass band with low
insertion loss in the low band, high stop band
attenuation at the stop band frequencies in the
high band.
721 687 / 724 580: Broad pass band with low
insertion loss in the high band, high stop band
attenuation at the stop band frequencies in the
low band.
721 784
721 687
Tuning:
The S-P filter can only be tuned at the factory
because of its special design. Special requests
such as: Special band spacing, switching bandwidths or attenuation can be taken into account.
When ordering please specify the desired high
and low band frequencies.
Technical Data
Type No.
Number of resonators
Frequency range
Band spacing
Switching bandwidth
Insertion loss
Stop band attenuation
VSWR
Impedance
Input power
Temperature range
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
20
721 784 (Pass band: Low band; Stop band: High band)
721 687 (Pass band: High band; Stop band: Low band)
724 579 (Pass band: Low band; Stop band: High band)
724 580 (Pass band: High band; Stop band: Low band)
3
4
68 … 87.5 MHz
Tuning examples
3 MHz
6 MHz
9.8 MHz
2 MHz
6 MHz
9.8 MHz
0.1 MHz 0.5 MHz 1.0 MHz 1.5 MHz 2.5 MHz 0.1 MHz 1.0 MHz 2.5 MHz 3.3 MHz
< 1.2 dB < 0.6 dB < 0.6 dB < 0.6 dB < 0.8 dB < 1.5 dB < 0.8 dB < 0.8 dB < 0.8 dB
> 60 dB > 65 dB > 70 dB > 65 dB > 60 dB > 60 dB > 70 dB > 75 dB > 65 dB
< 1.4 (at operating frequency)
50 Ω
< 100 W (–30 … +55 °C) / < 50 W (+55 … +70 °C)
–30 … +70 °C
N female, silver-plated
S-P resonators: Brass, silver-plated / copper, silver-plated; cable: RG 223/U
With 4 screws (max. 4 mm diameter)
1.5 kg
1.75 kg
245 mm x 71 mm x 210 mm
155 mm x 60 mm x 175 mm
195 mm x 60 mm x 175 mm
(with connectors)
(with connectors)
4.0 MHz
< 1.2 dB
> 60 dB
S-P Filter
68 … 87.5 MHz
Typical attenuation curves
721 784 / 721 687
724 579 / 724 580
Band spacing: 6.0 MHz
Switching bandwidth: 0.5 MHz
Band spacing: 6.0 MHz
Switching bandwidth: 1.0 MHz
0
10
721 784
Attenuation/dB
Attenuation/dB
Tuning examples:
721 687
20
30
0
10
724 580
30
40
40
50
50
60
60
70
70
80
80
90
90
100
724 579
20
100
68
70
72
74
76
78
80
82
84
86
88
68
70
72
74
76
78
Frequency/MHz
0
721 687
721 784
20
30
84
86
88
86
88
86
88
0
10
724 580
724 579
20
30
40
40
50
50
60
60
70
70
80
80
90
90
100
100
68
70
72
74
76
78
80
82
84
86
88
68
70
72
74
76
78
Frequency/MHz
Attenuation/dB
721 784
721 687
20
30
84
0
10
30
40
50
50
60
60
70
70
80
80
90
90
100
724 580
724 579
20
40
68
82
Band spacing: 9.8 MHz
Switching bandwidth: 4.0 MHz
0
10
80
Frequency/MHz
Band spacing: 9.8 MHz
Switching bandwidth: 2.5 MHz
Attenuation/dB
82
Band spacing: 9.8 MHz
Switching bandwidth: 2.5 MHz
Attenuation/dB
Attenuation/dB
Band spacing: 9.8 MHz
Switching bandwidth: 1.0 MHz
10
80
Frequency/MHz
100
70
72
74
76
78
80
82
84
Frequency/MHz
86
88
68
70
72
74
76
78
80
82
84
Frequency/MHz
21
Low-pass Filter
68 – 87.5 MHz
The low-pass filter is suitable for use as a
receiving or transmitting filter.
It can be used:
– to suppress harmonics in the transmitting
path,
– to suppress interfering signals in the receiving path.
Design and construction:
The low-pass filter consists of lumped L-C
elements.
Filter characteristics:
Broad pass band with low insertion loss,
high stop band attenuation in the stop band.
Installation:
The right angle mounting plate allows
horizontal as well as vertical installation.
Technical Data
Type No.
Pass band
Insertion loss
Stop band attenuation
VSWR
Impedance
Input power
Temperature range
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
22
726 941
68 – 87.5 MHz
< 0.5 dB (68 – 87.5 MHz)
> 55 dB (136 – 154 MHz)
> 65 dB (154 – 1110 MHz)
< 1.4 (68 – 87.5 MHz)
50 Ω
< 40 W
–30 … +60 °C
N male at a 250 mm long cable
Housing: Aluminium
Cabel: RG 223/U
With 2 screws (max. 4 mm diameter)
0.3 kg
190 mm x 65 mm x 110 mm
88 mm x 40 mm x 64 mm
(without connectors)
Low-pass Filter
68 – 87.5 MHz
Typical attenuation curves
Attenuation/dB
Diagram I:
0
10
Detail see
diagram II
20
30
40
50
60
70
80
90
100
50
150
250
350
450
550
650
750
850
950
1050
Frequency/MHz
Attenuation/dB
Diagram II:
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
50
55
60
65
70
75
80
85
90
95
100
Frequency/MHz
23
Band-pass Filter
150 ... 169 MHz
The band-pass filter is suitable for use as a
receiving or transmitting filter for one or
several receivers, or one transmitter.
It can be used:
– to improve the input selectivity of
receivers and amplifiers,
– to increase the isolation of transmitters,
whose respective antennas are mounted
close together,
– to suppress noise side bands and intermodulation products,
– as a combiner component.
Design and construction:
The band-pass filter consists of three inductively coupled helix resonators.
Filter characteristics:
Broad pass band with low insertion loss
and high stop band attenuation outside of
the pass band.
Tuning:
The band-pass filter is factory-tuned to the
desired pass-band center frequency fo with
a bandwidth of fo ±2.0 MHz and an insertion loss of < 1.0 dB.
When ordering please specify the desired
center frequency fo.
Technical Data
Type No.
Number of resonators
Frequency range
Insertion loss at fo ±2 MHz
VSWR at fo ±2 MHz
Impedance
Input power
Temperature range
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
24
791 730
3
150 ... 169 MHz
< 1.0 dB
< 1.3 dB
50 Ω
< 50 W
–20 … +50 °C
N female
Aluminium / copper, silver-plated
With 4 screws (max. 4 mm diameter)
0.85 kg
188 mm x 80 mm x 153 mm
115 mm x 69 mm x 140 mm
(with connectors)
Band-pass Filter
150 ... 169 MHz
Typical attenuation curves
Tuning example:
Attenuation/dB
Diagram I:
0
5
Detail see
diagram II
10
15
20
25
30
35
40
45
50
-12.5
-10
-7.5
-5
-2.5
f0
+2.5
+5
+7.5
+10
+12.5
Frequency/MHz
Attenuation/dB
Diagram II:
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
-5
-4
-3
-2
-1
f0
+1
+2
+3
+4
+5
Frequency/MHz
25
Band-pass Filter
146 … 174 MHz
The band-pass filter is suitable for use as a
receiving or transmitting filter for one or
several receivers or transmitters.
It can be used:
– to improve the input selectivity of
receivers and amplifiers,
– to increase the isolation of transmitters,
whose respective antennas are mounted
close together,
– to suppress noise side bands and intermodulation products,
– as a combiner component.
Design and construction:
The band-pass filter consists of two capacitively coupled resonators.
Filter characteristics:
Narrow pass band with low insertion loss
and high stop band attenuation.
Tuning:
The band-pass filter is tuned to the desired
pass band frequency fo at the factory.
Please specify desired pass band frequency when ordering.
The band-pass filter can also be tuned on
site using the supplied instructions.
Technical Data
Type No.
Frequency range
Insertion loss at fo
VSWR
Impedance
Input power
Temperature range
Connectors
Material
Colour
Installation
Weight
Packing size
Dimensions (w x h x d)
26
K 64 00 21
146 … 174 MHz
< 1 dB
< 1.2 (at operating frequency)
50 Ω
< 50 W
–30 … +60 °C
N female
Brass, silver-plated
Grey (RAL 7032)
With 4 screws (max. 5 mm diameter)
1 kg
315 mm x 90 mm x 95 mm
276 mm x 67 mm x 83 mm
(with connectors)
Band-pass Filter
146 … 174 MHz
Typical attenuation curves
Tuning example:
Attenuation/dB
Diagram I:
0
5
Detail see
diagram II
10
15
20
25
30
35
40
45
50
-10
-8
-6
-4
-2
f0
+2
+4
+6
+8
+10
+2.0
+2.5
Frequency/MHz
Attenuation/dB
Diagram II:
0
1
2
3
4
5
6
7
8
9
10
-2.5
-2.0
-1.5
-1.0
-0.5
f0
+0.5
+1.0
+1.5
Frequency/MHz
27
Band-pass Filter
146 … 174 MHz
The band-pass filter is suitable for use as a
receiving or transmitting filter, for one or
several receivers or transmitters.
It can be used:
– to improve the input selectivity of
receivers and amplifiers,
– to increase the isolation of transmitters,
whose respective antennas are mounted
close together,
– to suppress noise side bands and intermodulation products,
– as a combiner component.
790 965
Design and construction:
The band-pass filter consists of two or three
high Q inductively coupled resonators.
The pass band frequency and the insertion
loss are tunable.
Filter characteristics:
Narrow pass band with low insertion loss,
high stop band attenuation, variable filter
response corresponding to the desired stop
band attenuation.
Tuning:
The band-pass filter is tuned to the desired
pass band frequency and insertion loss at
the factory. Please specify desired pass
band frequency and insertion loss (curve A,
B, C) when ordering.
790 964
The band-pass filter can also be tuned on
site using the supplied instructions.
Technical Data
Type No.
790 965
790 964
2-cavity band-pass filter
3-cavity band-pass filter
Frequency range
Insertion loss at fo
146 … 174 MHz
1 … 2 dB, tunable
Tuning examples
2.0 dB
1.0 dB
1.5 dB
2.0 dB
curve C
curve A
curve B
curve C
< 1.3 (at operating frequency)
50 Ω
< 75 W
< 50 W
< 25 W
< 100 W
< 75 W
< 50 W
–30 … +60 °C
–1.4 kHz / °C
N female, silver-plated
Brass, silver-plated
Grey (RAL 7032)
With 3 screws (max. 8 mm diameter)
With 4 screws (max. 8 mm diameter)
1.0 dB
curve A
VSWR
Impedance
Input power
Temperature range
Effect of temperature
Connectors
Material
Colour
Installation
Weight
Packing size
Dimensions (w x h x d)
28
1.5 dB
curve B
5.7 kg
500 mm x 190 mm x 320 mm
419 mm x 121 mm x 232 mm
(with connectors)
8.4 kg
500 mm x 190 mm x 440 mm
419 mm x 121 mm x 345 mm
(with connectors)
Band-pass Filter
146 … 174 MHz
Typical attenuation curves
Tuning examples:
2-cavity band-pass filter 790 965
3-cavity band-pass filter 790 964
Diagram I:
Attenuation/dB
Attenuation/dB
Diagram I:
0
Detail see
diagram II
10
20
30
0
Detail see
diagram II
10
20
30
40
40
50
50
60
60
70
A
70
80
B
C
80
90
90
100
100
A
-10
-8
-6
-4
-2
f0
+2
+4
+6
+8
-10
+10
-8
-6
-4
-2
f0
+2
+4
+6
+8
+10
Frequency/MHz
Frequency/MHz
Diagram II:
Attenuation/dB
Diagram II:
Attenuation/dB
B
C
0
Detail see
diagram III
10
20
30
40
0
Detail see
diagram III
10
20
30
40
A
50
50
B
C
60
60
70
70
80
80
90
90
A
B
C
100
100
-2.5
-2.0
-1.5
-1.0
-0.5
f0
+0.5
+1.0
+1.5
+2.0
+2.5
-2.5
-2.0
-1.5
-1.0
-0.5
f0
Frequency/MHz
+1.0
+1.5
+2.0
+2.5
Frequency/MHz
Diagram III:
Attenuation/dB
Diagram III:
Attenuation/dB
+0.5
0
2
4
6
0
2
4
6
8
8
10
10
12
12
14
14
A
16
A
16
18
18
C
20
-0.5
-0.4
-0.3
-0.2
-0.1
f0
+0.1
+0.2
+0.3
B
+0.4
Frequency/MHz
C
20
+0.5
-0.5
-0.4
-0.3
-0.2
-0.1
f0
+0.1
+0.2
+0.3
+0.4
B
+0.5
Frequency/MHz
29
Band-pass Filter
146 … 174 MHz
The band-pass filter is suitable for use as
a receiving or transmitting filter for one
receiver or transmitter.
It can be used:
– to improve the input selectivity of
receivers and amplifiers,
– to increase the isolation of transmitters,
whose respective antennas are mounted
close together,
– to suppress noise side bands and intermodulation products,
– as a combiner component.
Design and construction:
The band-pass filter is designed as a temperature stabilized λ/4 coaxial resonator.
The pass band frequency and the insertion
loss are tunable.
Filter characteristics:
Narrow pass band with low insertion loss,
high stop band attenuation, variable filter
response corresponding to the desired stop
band attenuation.
Combination of several band-pass filters:
Several band-pass filters can be interconnected using cables of an electrical length
of λ/4. This causes an increase in the edge
steepness of the filter curve as well as the
bandwidth of the pass band. The individual
filters are tuned to the center frequency of
the complete filter.
Insertion loss of the filter combination =
Sum insertion loss of the individual filters +
cable attenuation of the interconnecting
cables (about 0.1 dB per cable).
Stop band attenuation of the filter combination = Sum stop band attenuation of individual filters + additional stop band attenuation.
If the stop band attenuation of the individual
filters exceeds 10 dB, approximately the
following applies:
additional stop band attenuation =
(n – 1) x 5 dB;
n = number of individual filters.
For special applications band-pass filters
can also be interconnected with S-P filters.
Tuning:
The band-pass filter is tuned to the desired
pass band frequency and insertion loss at
the factory. Please specify desired pass band
frequency and insertion loss (curve A, B, C,
D) when ordering.
The band-pass filter can also be tuned on
site using the supplied instructions.
30
Technical Data
Type No.
Frequency range
Insertion loss at fo
VSWR
Impedance
Input power
Temperature range
Effect of temperature
Connectors
Material
Installation
Attached hardware
Weight
Packing size
Dimensions (w x h x d)
K 64 21 25 1
146 … 174 MHz
0.5 … 2 dB, tunable
Tuning examples
0.5 dB
1.0 dB
1.5 dB
2.0 dB
curve A
curve B
curve C
curve D
< 1.5 (at operating frequency)
50 Ω
< 200 W
–30 … +60 °C
< 0.4 kHz / °C
N female
Outer conductor: Aluminium
Inner conductor: Brass, silver-plated
Free standing or wall mounting
with mounting angles
Band-pass filter with 2 mounting angles
and 2 connecting pieces
9 kg
207 mm x 865 mm x 207 mm
190 mm x max. 770 mm x 190 mm
(with tuning rod)
Band-pass Filter
146 … 174 MHz
Typical attenuation curves
Tuning examples:
Attenuation/dB
Diagram I:
0
Detail see
diagram II
5
10
15
20
25
30
A
35
B
40
C
D
45
50
-10
-8
-6
-4
-2
f0
+2
+4
+6
+8
+10
Frequency/MHz
Attenuation/dB
Diagram II:
0
Detail see
diagram III
5
10
15
A
20
25
B
C
30
D
35
40
45
50
-2.5
-2.0
-1.5
-1.0
-0.5
f0
+0.5
+1.0
+1.5
+2.0
+2.5
Frequency/MHz
Attenuation/dB
Diagram III:
0
1
2
3
4
5
A
6
7
8
9
C
D
10
-0.5
-0.4
-0.3
-0.2
-0.1
f0
+0.1
+0.2
+0.3
B
+0.4
+0.5
Frequency/MHz
31
Band-stop Filter
146 … 174 MHz
The band-stop filter is used:
– to attenuate interfering signals,
– to increase the coupling isolation
between transmitter and receiver.
Design and construction:
The band-stop filter consists of capacitively
shortened λ/4 coaxial resonators.
The resonators of the multi cavity band-stop
filters are interconnected by cables of λ/4
length. The stop band frequency and the
stop band attenuation are tunable.
1-cavity band-stop filter
K 64 31 21
Filter characteristics:
Narrow stop band with high stop band
attenuation, low insertion loss outside the
stop band.
Tuning:
The band-stop filter is tuned to the desired
stop band frequency at the factory.
When ordering please specify stop band
frequency.
2-cavity band-stop filter
K 64 32 21
The band-stop filter can also be tuned on
site using the supplied instructions.
The resonators of the 2-cavity or 3-cavity
band-stop filters can be tuned independently. In this way, 2 or 3 different interfering signals can be suppressed or one
single interfering signal can be especially
attenuated.
3-cavity band-stop filter
K 64 33 27
Technical Data
Type No.
N female
7-16 female
Version
Frequency range
Impedance
Input power
Temperature range
Temperature coefficient
Material
Colour
Montage
Weight
Packing size
Dimensions (w x h x d)
32
K 64 31 21
K 64 31 27
1-cavity
band-stop filter
K 64 32 21
K 64 32 27
K 64 33 21
K 64 33 27
2-cavity
3-cavity
band-stop filter
band-stop filter
146 … 174 MHz
50 Ω
< 300 W (at insertion loss < 1 dB)
–30 … +60 °C
< 18 x 10 –6 / °C
Brass, silver-plated
Grey (RAL 7032)
With 4 screws (max. 6 mm diameter)
5.2 kg
10.4 kg
15.5 kg
207 mm x 207 mm x 575 mm
330 mm x 205 mm x 550 mm
435 mm x 205 mm x 505 mm
120 mm x 148 mm x 420 mm
240 mm x 148 mm x 420 mm
360 mm x 148 mm x 420 mm
Band-stop Filter
146 … 174 MHz
Typical attenuation curves
Tuning examples:
1-cavity band-stop filter
Diagram II:
Attenuation/dB
Attenuation/dB
Diagram I:
0
10
Detail see
diagram II
20
30
0
0,5
1,0
1,5
40
2,0
50
2,5
60
3,0
70
3,5
80
4,0
90
4,5
100
5,0
-2.5
-2.0
-1.5
-1.0
-0.5
f0
+0.5
+1.0
+1.5
+2.0
+2.5
-2.5
-2.0
-1.5
-1.0
-0.5
f0
Frequency/MHz
+0.5
+1.0
+1.5
+2.0
+2.5
Frequency/MHz
2-cavity band-stop filter
Diagram II:
Attenuation/dB
Attenuation/dB
Diagram I:
0
10
Detail see
diagram II
20
30
0
0.5
1.0
1.5
40
2.0
50
2.5
60
3.0
70
3.5
80
4.0
90
4.5
5.0
100
-2.5
-2.0
-1.5
-1.0
-0.5
f0
+0.5
+1.0
+1.5
+2.0
-2.5
+2.5
-2.0
-1.5
-1.0
-0.5
f0
+0.5
+1.0
+1.5
+2.0
+2.5
Frequency/MHz
Frequency/MHz
3-cavity band-stop filter
Diagram II:
0
Attenuation/dB
Attenuation/dB
Diagram I:
10
Detail see
diagram II
20
30
0
0.5
1.0
1.5
40
2.0
50
2.5
60
3.0
70
3.5
80
4.0
90
4.5
100
-2.5
5.0
-2.0
-1.5
-1.0
-0.5
f0
+0.5
+1.0
+1.5
+2.0
Frequency/MHz
+2.5
-2.5
-2.0
-1.5
-1.0
-0.5
f0
+0.5
+1.0
+1.5
+2.0
+2.5
Frequency/MHz
33
S-P Filter
146 … 174 MHz
The S-P filter (Stop-Pass filter) is used to
attenuate interfering signals located extremely close to the operational frequency.
It can be used:
– in the transmission path to suppress side
band noise and to attenuate intermodulation products at the receiving frequencies,
– in the receiving path to attenuate transmitting frequencies,
– as a component for combiners with very
low frequency spacing.
Design and construction:
The S-P filter is designed as a high Q temperature stabilized λ/4 coaxial resonator.
Using a special temperature stabilized
coupling, high stop band attenuation can
be adjusted very close to the pass band
frequency.
Filter characteristics:
Narrow pass band with low insertion loss,
high stop band attenuation at the stop band
frequency. Even in case of very small spacing between the pass band and the stop
band frequency a high stop band attenuation
is achieved, which can not be achieved using
standard band-pass filters of the same size.
Combination of several S-P filters:
Several S-P filters can be interconnected
by cables with an electrical length of λ/4.
Insertion loss of the filter combination =
Sum insertion loss of the individual filters +
cable attenuation of the interconnecting
cables (about 0.1 dB per cable). Stop band
attenuation of the filter combination =
Sum stop band attenuation of the individual
filters + additional stop band attenuation.
If the stop band attenuation of the individual
filters exceeds 10 dB, approximately the
following applies:
additional stop band attenuation =
(n – 1) x 5 dB;
n = number of individual filters.
For special applications S-P filters can also
be interconnected with band-pass filters.
Tuning:
The S-P filter is tuned to the desired pass
band and stop band frequency at the factory.
Please specify desired pass band and stop
band frequency when ordering.
The S-P filter can also be tuned on site using
the supplied instructions.
K 64 21 26 1
728 024
792 119
Technical Data
Type No.
Frequency range
Frequency spacing
Pass band / stop band frequency
Insertion loss
VSWR
Impedance
Input power
Temperature range
Effect of temperature
Connectors
Material
Installation
Attached hardware
Weight
Packing size
Dimensions (w x h x d)
34
792 119
728 024
K 64 21 26 1
146 … 174 MHz
60 – 100 kHz
80 – 150 kHz 1)
> 300 kHz
150 – 300 kHz 2)
> 300 kHz 3)
< 1.0 dB
< 0.7 dB
0.5 ±0.15 dB
< 1.5 (at operating frequency)
50 Ω
< 15 W
< 15 W 1)
< 200 W
< 100 W 2)
< 200 W 3)
0 … +35 °C
0 … +35 °C 1)
–20 ... +60 °C
0 ... +50 °C 2)
3)
–20 ... +60 °C
< 0.4 kHz / °C
N female
Outer conductor: Aluminium,
Inner conductor: Brass, silver-plated
Free standing or wall mounting
S-P filter with 2 mounting angles
and 2 connecting pieces
Approx. 9 kg
207 mm x 865 mm x 207 mm
190 mm x max. 770 mm x 190 mm
(with tuning rod)
S-P Filter
146 … 174 MHz
Typical attenuation curves
Tuning examples:
792 119
Diagram II:
Attenuation/dB
Attenuation/dB
Diagram I:
0
A
B
C
5 D
E
10
A
B
C
15
D
E
0
A
B
C
D
E
5
10
A
B
C
15
20
20
25
25
30
30
35
35
40
40
45
45
D
E
50
50
-0.15
-0.1
-0.05
f0
-0.05
+0.05
f0
+0.05
+0.1
+0.15
Frequency/MHz
Frequency/MHz
728 024
Diagram II:
Attenuation/dB
Attenuation/dB
Diagram I:
0
A
5 B
10
15
20
C
D
A
25
C
10
D
15
A
B
25
C
D
30
A
B
5
20
B
E
0
E
C
D
30
E
35
35
40
40
45
45
E
50
50
-0.3
-0.2
-0.1
f0
-0.1
+0.1
f0
+0.1
+0.2
+0.3
Frequency/MHz
Frequency/MHz
K 64 21 26 1
Diagram II:
0
A
A
5
B
C
D
E
F
G
H
B
10 C
D
15
E
20 F
Attenuation/dB
Attenuation/dB
Diagram I:
0
A
A
B
C
10 D
E
15 F
G
H
20
B
5
C
D
E
F
25 G
25
G
30
30
H
H
35
35
40
40
45
45
50
50
+3
+2
+1
f0
Frequency/MHz
-1
-1
f0
+1
+2
+3
Frequency/MHz
35
S-P Filter
146 … 174 MHz
The S-P filter (Stop-Pass filter) is suitable for
attenuating interfering frequencies, close to the
operational frequency band. It is designed for
operation with one transmitter respectively with
one or several receivers.
It can be used:
– in the transmission path for suppressing side
band noise and for attenuating intermodulation
products at the receiving frequencies,
– in the receiving path for attenuating transmitting
frequencies,
– as a duplexer component.
Design and construction:
The S-P filter consists of three or four S-P
resonators, interconnected by cables of defined
electrical length.
721 755
721 757
Filter characteristics:
721 755 / 721 756: Broad pass band with low
insertion loss in the low band, high stop band
attenuation at the stop band frequencies in the
high band.
721 757 / 721 758: Broad pass band with low
insertion loss in the high band, high stop band
attenuation at the stop band frequencies in the
low band.
Tuning:
The S-P filter can only be tuned at the factory
because of its special design. Special requests
such as: Special band spacing, switching bandwidths or attenuation can be taken into account.
When ordering please specify the desired high
and low band frequencies.
Technical Data
Type No.
Number of resonators
Frequency range
Band spacing
Switching bandwidth
Insertion loss
Stop band attenuation
VSWR
Impedance
Input power
Temperature range
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
36
721 755 (Pass band: Low band/Stop band: High band) 721 756 (Pass-band: Low band/Stop band: High band)
721 757 (Pass band: High band/Stop band: Low band) 721 758 (Pass-band: High band/Stop band: Low band)
3
4
146 … 174 MHz
Tuning examples
3.5 MHz
4.6 MHz
6 MHz
3 MHz
4.6 MHz
6 MHz
0.1 MHz 0.1 MHz 0.5 MHz 1.0 MHz 1.0 MHz 0.1 MHz 0.5 MHz 1.0 MHz 1.9 MHz * 2.0 MHz
< 1.2 dB < 1.0 dB < 1.0 dB < 1.2 dB < 1.0 dB < 1.2 dB < 1.2 dB < 1.3 dB < 2.0 dB < 1.3 dB
> 60 dB > 70 dB > 60 dB > 55 dB > 60 dB > 65 dB > 70 dB > 60 dB > 55 dB > 60 dB
< 1.4 (at operating frequency)
50 Ω
< 100 W (–30 … +55 °C) / < 50 W (+55 … +70 °C)
* < 50 W (–30 … +55 °C) / < 30 W (+55 … +70 °C)
–30 … +70 °C
N female
S-P resonators: Aluminium / copper, silver-plated; cable: RG 223/U
With 4 screws (max. 4 mm diameter)
1.0 kg
1.2 kg
235 mm x 61 mm x 165 mm
155 mm x 50 mm x 160 mm
195 mm x 50 mm x 160 mm
(with connectors)
(with connectors)
S-P Filter
146 … 174 MHz
Typical attenuation curves
721 755 / 721 757
721 756 / 721 758
Band spacing: 4.6 MHz
Switching bandwidth: 0.1 MHz
Band spacing: 4.6 MHz
Switching bandwidth: 0.5 MHz
Attenuation/dB
Attenuation/dB
Tuning examples:
0
10
721 755
721 757
20
30
0
10
40
50
50
60
60
70
70
80
80
90
90
155
721 758
30
40
100
721 756
20
100
156
157
158
159
160
161
162
163
164
165
155
156
157
158
159
160
0
721 757
721 755
20
30
10
50
60
60
70
70
80
80
90
90
100
721 758
721 756
100
156
157
158
159
160
161
162
163
164
165
155
156
157
158
159
160
Frequency/MHz
162
163
164
165
Attenuation/dB
Band spacing: 6.0 MHz
Switching bandwidth: 2.0 MHz
0
721 755
161
Frequency/MHz
Band spacing: 6.0 MHz
Switching bandwidth: 1.0 MHz
Attenuation/dB
165
30
50
721 757
20
30
0
10
30
40
50
50
60
60
70
70
80
80
90
90
100
721 758
721 756
20
40
155
164
20
40
10
163
0
40
155
162
Band spacing: 4.6 MHz
Switching bandwidth: 1.9 MHz
Attenuation/dB
Attenuation/dB
Band spacing: 4.6 MHz
Switching bandwidth: 1.0 MHz
10
161
Frequency/MHz
Frequency/MHz
100
156
157
158
159
160
161
162
163
164
Frequency/MHz
165
155
156
157
158
159
160
161
162
163
164
165
Frequency/MHz
37
S-P Filter
146 … 174 MHz
The S-P filter (Stop-Pass filter) is suitable for
attenuating interfering frequencies, close to the
operational frequency band. It is designed for
operation with one or several transmitters respectively with one or several receivers.
It can be used:
– in the transmission path for suppressing side
band noise and for attenuating intermodulation
products at the receiving frequencies,
– in the receiving path for attenuating transmitting
frequencies,
– as a duplexer component.
Design and construction:
The S-P filter consists of three or four S-P
resonators, interconnected by cables of defined
electrical length.
721 785
721 786
Filter characteristics:
721 785 / 722 916: Broad pass band with low
insertion loss in the low band, high stop band
attenuation at the stop band frequencies in the
high band.
721 786 / 722 917: Broad pass band with low
insertion loss in the high band, high stop band
attenuation at the stop band frequencies in the
low band.
Tuning:
The S-P filter can only be tuned at the factory
because of its special design. Special requests
such as: Special band spacing, switching bandwidths or attenuation can be taken into account.
When ordering please specify the desired high
and low band frequencies.
722 916
722 917
Technical Data
Type No.
Number of resonators
Frequency range
Band spacing
Switching bandwidth
Insertion loss
Stop band attenuation
VSWR
Impedance
Input power
Temperature range
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
38
721 785 (Pass band: Low band/Stop band: High band) 722 916 (Pass band: Low band/Stop band: High band)
721 786 (Pass band: High band/Stop band: Low band) 722 917 (Pass band: High band/Stop band: Low band)
3
4
146 … 174 MHz
Tuning examples
3.5 MHz
4.6 MHz
6 MHz
3 MHz
4.6 MHz
6 MHz
0.1 MHz 0.1 MHz 0.5 MHz 1.0 MHz 1.0 MHz 0.1 MHz 0.5 MHz 1.0 MHz 1.9 MHz * 2.0 MHz
< 1.2 dB < 1.0 dB < 1.0 dB < 1.2 dB < 1.0 dB < 1.2 dB < 1.2 dB < 1.3 dB < 2.0 dB < 1.3 dB
> 60 dB > 70 dB > 60 dB > 55 dB > 60 dB > 65 dB > 70 dB > 60 dB > 55 dB > 60 dB
< 1.4 (at operating frequency)
50 Ω
< 100 W (–30 … +55 °C) / < 50 W (+55 … +70 °C)
* < 50 W (–30 … +55 °C) / < 30 W (+55 … +70 °C)
–30 … +70 °C
N female, silver-plated
S-P resonators: Brass, silver-plated / copper silver-plated; cable: RG 223/U
With 4 screws (max. 5 mm diameter)
1.5 kg
1.75 kg
245 mm x 71 mm x 210 mm
155 mm x 60 mm x 175 mm
195 mm x 60 mm x 175 mm
(with connectors)
(with connectors)
S-P Filter
146 … 174 MHz
Typical attenuation curves
721 785 / 721 786
722 916 / 722 917
Band spacing: 4.6 MHz
Switching bandwidth: 0.1 MHz
Band spacing: 4.6 MHz
Switching bandwidth: 0.5 MHz
Attenuation/dB
Attenuation/dB
Tuning examples:
0
10
721 785
721 786
20
30
0
10
722 917
30
40
40
50
50
60
60
70
70
80
80
90
90
100
100
155
722 916
20
156
157
158
159
160
161
162
163
164
155
165
156
157
158
159
160
0
721 786
721 785
20
30
10
50
60
60
70
70
80
80
90
90
722 916
722 917
100
100
156
157
158
159
160
161
162
163
164
155
165
156
157
158
159
160
162
163
164
165
Band spacing: 6.0 MHz
Switching bandwidth: 2.0 MHz
Attenuation/dB
Band spacing: 6.0 MHz
Switching bandwidth: 1.0 MHz
0
721 786
721 785
161
Frequency/MHz
Frequency/MHz
Attenuation/dB
165
30
50
20
30
0
10
722 916
30
40
50
50
60
60
70
70
80
80
90
90
100
722 917
20
40
155
164
20
40
10
163
0
40
155
162
Band spacing: 4.6 MHz
Switching bandwidth: 1.9 MHz
Attenuation/dB
Attenuation/dB
Band spacing: 4.6 MHz
Switching bandwidth: 1.0 MHz
10
161
Frequency/MHz
Frequency/MHz
100
156
157
158
159
160
161
162
163
164
Frequency/MHz
165
155
156
157
158
159
160
161
162
163
164
165
Frequency/MHz
39
Low-pass Filter
146 – 174 MHz
The low-pass filter is suitable for use as a
receiving or transmitting filter.
It can be used:
– to suppress harmonics in the transmitting
path,
– to suppress interfering signals in the
receiving path.
Design and construction:
The low pass filter consists of lumped L-C
elements.
Filter characteristics:
Broad pass band with low insertion loss,
high stop band attenuation in the stop band.
Installation:
The right angle mounting plate allows
horizontal as well as vertical installation.
Technical Data
Type No.
Pass band
Insertion loss
Stop band
Stop band attenuation
VSWR
Impedance
Input power
Temperature range
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
40
729 870
146 – 174 MHz
< 0.5 dB (146 – 174 MHz)
292 – 1050 MHz
> 60 dB (292 – 1050 MHz)
< 1.4 (146 – 174 MHz)
50 Ω
< 40 W
–30 … +60 °C
N male at a 250 mm long cable
Housing: Aluminium
Cabel: RG 223/U
With 2 screws (max. 4 mm diameter)
0.3 kg
190 mm x 65 mm x 110 mm
88 mm x 40 mm x 64 mm
(without connectors)
Low-pass Filter
146 – 174 MHz
Typical attenuation curves
Attenuation/dB
Diagram I:
0
10
Detail see
diagram II
20
30
40
50
60
70
80
90
100
100
200
300
400
500
600
700
800
900
1000
1100
Frequency/MHz
Attenuation/dB
Diagram II:
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
100
110
120
130
140
150
160
170
180
190
200
Frequency/MHz
41
Band-pass Filter
380 … 470 MHz
The band-pass filter is suitable as receiving
or transmitting filter, for one or more transmitting or receiving channels.
It can be used:
– to improve the input selectivity of
receivers and amplifiers,
– to increase the isolation of transmitters,
whose respective antennas are mounted
close together,
– to suppress noise sidebands and intermodulation products,
– as a component to form combiners.
Design and construction:
The band-pass filter consists of two capacitively coupled resonators.
Filter characteristics:
Narrow pass band range with low insertion
loss, high stop band attenuation.
Tuning:
The band-pass filter is tuned to the desired
pass band frequency at the factory. Please
specify desired pass band frequency when
ordering. The band-pass filter can also be
tuned on site using the supplied instructions.
Technical Data
Type No.
Frequency range
Insertion loss
VSWR
Impedance
Input power
Temperature range
Connectors
Material
Colour
Installation
Weight
Packing size
Dimensions (w x h x d)
42
K 65 00 21
380 … 470 MHz
< 1.2 dB
< 1.2
50 Ω
< 50 W
–30 … +60 °C
N female
Brass, silver-plated
Grey (RAL 7032)
With 2 screws (max. 5 mm diameter)
0.6 kg
315 mm x 90 mm x 95 mm
158 mm x 40 mm x 83 mm
(without connectors and tuning bolts)
Band-pass Filter
380 … 470 MHz
Typical attenuation curves
Tuning example:
Attenuation/dB
Diagram I:
0
5
Detail see
diagram II
10
15
20
25
30
35
40
45
50
-25
-20
-15
-10
-5
f0
+5
+10
+15
+20
+25
+4
+5
Frequency/MHz
Attenuation/dB
Diagram II:
0
1
2
3
4
5
6
7
8
9
10
-5
-4
-3
-2
-1
f0
+1
+2
+3
Frequency/MHz
43
Band-pass Filter
380 … 470 MHz
The band-pass filter is suitable as receiving
or transmitting filter, for one or more transmitting or receiving channels.
It can be used:
– to improve the input selectivity of receivers and amplifiers,
– to increase the isolation of transmitters,
whose respective antennas are mounted
close together,
– to suppress noise sidebands and intermodulation products,
– as a component to form combiners.
Design and construction:
The band-pass filter consists of two or three
high Q inductively coupled resonators. The
pass band frequency, the coupling between
the resonators as well as the input and output coupling are adjustable.
790 967
Filter characteristics:
Narrow pass band range with low insertion
loss, high stop band attenuation, variable
filter response corresponding to the desired
stop band attenuation.
Tuning:
The band-pass filter is tuned to the desired
pass band frequency and insertion loss at
the factory. Please specify desired pass
band frequency and insertion loss (curve A,
B, C) when ordering.
The band-pass filter can also be tuned on
site using the supplied instructions.
790 966
Technical Data
Type No.
790 967
790 966
2-cavity band-pass filter
3-cavity band-pass filter
Frequency range
Insertion loss
VSWR
Impedance
Input power
Temperature range
Effect of temperature
Connectors
Material
Colour
Installation
Weight
Packing size
Dimensions (w x h x d)
44
1.0 dB
curve A
1.5 dB
curve B
< 50 W
< 35 W
380 … 470 MHz
1 … 2 dB, tunable
2.0 dB
1.0 dB
curve C
curve A
< 1.3 (at pass band frequency)
50 Ω
< 25 W
< 75 W
–30 … +60 °C
–2.5 kHz / °C
N female, silver-plated
Brass, silver-plated
Grey (RAL 7032)
With 3 screws (M6)
3.2 kg
310 mm x 210 mm x 310 mm
232 mm x 121 mm x 188 mm
(with connectors)
1.5 dB
curve B
2.0 dB
curve C
< 50 W
< 35 W
With 4 screws (M6)
4.5 kg
410 mm x 215 mm x 255 mm
345 mm x 121 mm x 188 mm
(with connectors)
Band-pass Filter
380 … 470 MHz
Typical attenuation curves
Tuning example:
3-cavity band-pass filter
790 966
2-cavity band-pass filter
790 967
Diagram I:
0
Attenuation/dB
Attenuation/dB
Diagram I:
10
Detail see
diagram II
20
30
0
10
Detail see
diagram II
20
30
40
40
50
50
60
60
A
70
70
B
A
C
80
80
B
90
90
100
100
C
-25
-20
-15
-10
-5
f0
+5
+10
+15
+20
-25
+25
-20
-15
-10
-5
f0
Frequency/MHz
Diagram II:
+10
+15
+20
+25
Diagram II:
0
10
Detail see
diagram III
20
0
Attenuation/dB
Attenuation/dB
+5
Frequency/MHz
30
10
30
A
40
Detail see
diagram III
20
40
B
50
50
C
A
60
60
70
70
80
80
90
90
B
C
100
100
-5
-4
-3
-2
-1
f0
+1
+2
+3
+4
+5
-5
-4
-3
-2
-1
f0
Frequency/MHz
Diagram III:
+2
+3
+4
+5
Diagram III:
0
Attenuation/dB
Attenuation/dB
+1
Frequency/MHz
2
4
6
0
2
A
4
6
8
8
B
10
10
A
12
12
14
14
16
16
18
20
-1.0
-0.8
-0.6
-0.4
-0.2
f0
+0.2 +0.4
+0.6 +0.8
Frequency/MHz
B
18
C
+1.0
20
-1.0
C
-0.8
-0.6
-0.4
-0.2
f0
+0.2 +0.4
+0.6 +0.8
+1.0
Frequency/MHz
45
Band-pass Filter
380 … 470 MHz
The band-pass filter is suitable as receiving
or transmitting filter, for one transmitting or
receiving channel.
It can be used:
– to improve the input selectivity of
receivers and amplifiers,
– to increase the isolation of transmitters,
whose respective antennas are mounted
close together,
– to suppress noise sidebands and intermodulation products,
– as a component to form combiners.
Design and construction:
The band-pass filter is designed as a temperature stabilized λ/4 coaxial resonator.
The pass band frequency as well as the
input and output coupling are adjustable.
Filter characteristics:
Narrow pass band range with low insertion
loss, high stop band attenuation, variable
filter response corresponding to the desired
stop band attenuation.
Combination of several band-pass filters:
Several band-pass filters can be interconnected using cables of an electrical length
of λ/4. This causes an increase in the edge
steepness of the filter curve as well as the
bandwidth of the pass band. The individual
filters are tuned to the center frequency of
the complete filter.
Insertion loss of the filter combination =
Sum insertion loss of the individual filters
+ cable attenuation of the interconnecting
cables (about 0.1 dB per cable).
Stop band attenuation of the filter
combination = Sum stop band attenuation
of individual filters + additional stop band
attenuation.
If the stop band attenuation of the individual
filters exceeds 10 dB, approximately the
following applies:
additional stop band attenuation =
(n – 1) x 5 dB;
n = number of individual filters.
For special applications band-pass filters
can also be interconnected with S-P filters.
Tuning:
The band-pass filter is tuned to the desired
pass band frequency and insertion loss at the
factory. Please specify desired pass band
frequency and insertion loss (curve A, B, C,
D) when ordering.
The pass band filter can also be tuned on
site using the supplied instructions.
Technical Data
Type No.
Frequency range
Insertion loss at fo
VSWR
Impedance
Input power
Temperature range
Effect of temperature
Connectors
Material
Mounting
Attached hardware
Weight
Packing size
Dimensions (w x h x d)
46
K 65 21 25 1
380 … 470 MHz
0.5 … 2 dB, tunable
Tuning examples
0.5 dB
1.0 dB
1.5 dB
2.0 dB
curve A
curve B
curve C
curve D
< 1.5 (at pass band frequency)
50 Ω
< 200 W
–30 … +60 °C
< 1.2 kHz / °C
N female
Outer conductor: Aluminium
Inner conductor: Brass, silver-plated
Free standing or wall mounting
with mounting angles
Band-pass filter with 2 mounting angles
and 2 connecting pieces
5 kg
210 mm x 490 mm x 210 mm
190 mm x max. 380 mm x 190 mm
(with tuning rod)
Band-pass Filter
380 … 470 MHz
Typical attenuation curves
Tuning example:
Attenuation/dB
Diagram I:
0
Detail see
diagram II
5
10
15
20
25
30
A
35
B
40
C
45
D
50
-25
-20
-15
-10
-5
f0
+5
+10
+15
+20
+25
Frequency/MHz
Attenuation/dB
Diagram II:
0
Detail see
diagram III
5
10
15
A
20
25
B
30
C
D
35
40
45
50
-5
-4
-3
-2
-1
f0
+1
+2
+3
+4
+5
Frequency/MHz
Attenuation/dB
Diagram III:
0
2
4
6
A
8
10
B
12
14
C
16
18
D
20
-1.0
-0.8
-0.6
-0.4
-0.2
f0
+0.2 +0.4
+0.6 +0.8
+1.0
Frequency/MHz
47
Band-stop Filter
380 … 470 MHz
The band-stop filter is used:
– to attenuate interfering signals,
– to increase the coupling attenuation
between transmitter and receiver.
Design and construction:
The band-stop filter consists of capacitively
shortened λ/4 coaxial resonators. The resonators of the 2- and 3-cavity band-stop filter
are interconnected by cables of λ/4 length.
1-cavity band-stop filter
K 65 31 21
Filter characteristics:
Narrow stop band range with high stop
band attenuation, low insertion loss outside
the stop band range.
Tuning:
The band-stop filter is tuned to the desired
stop band frequency at the factory. When
ordering please specify stop band
frequency.
The band-stop filter can also be tuned on
site using the supplied instructions.
2-cavity band-stop filter
K 65 32 21
The resonators of the 2-cavity or 3-cavity
band-stop filters can be tuned independently. In this way, 2 or 3 different interfering signals can be suppressed or one
single interfering signal can be especially
attenuated.
3-cavity band-stop filter
K 65 33 21
Technical Data
Type No.
N female
7-16 female
Version
Frequency range
Impedance
Input power
Temperature range
Temperature coefficient
Material
Colour
Installation
Weight
Packing size by mm
Dimensions by mm (w x h x d)
48
K 65 31 21
K 65 31 27
1-cavity
band-stop filter
K 65 32 21
K 65 32 27
K 65 33 21
K 65 33 27
2-cavity
3-cavity
band-stop filter
band-stop filter
380 … 470 MHz
50 Ω
< 300 W (insertion loss < 1 dB)
–30 … +60 °C
18 x 10–6 / °C
Brass, silver-plated
Grey (RAL 7032)
With 4 screws (max. 6 mm diameter)
5.6 kg
11.2 kg
17.0 kg
585 x 170 x 170
585 x 170 x 285
585 x 170 x 405
426 x 130 x 122
426 x 130 x 240
426 x 130 x 360
Band-stop Filter
380 … 470 MHz
Typical attenuation curves
Tuning example:
1-cavity band-stop filter
Diagram I:
Diagram II:
Attenuation/dB
Attenuation/dB
0
10
Detail see
diagram II
20
30
0
0.5
1.0
1.5
40
2.0
50
2.5
60
3.0
70
3.5
80
4.0
90
4.5
100
5.0
-5
-4
-3
-2
-1
f0
+1
+2
+3
+4
+5
-5
-4
-3
-2
-1
f0
Frequency/MHz
+1
+2
+3
+4
+5
+4
+5
+4
+5
Frequency/MHz
2-cavity band-stop filter
Diagram I:
Diagram II:
Attenuation/dB
Attenuation/dB
0
10
Detail see
diagram II
20
30
0
0.5
1.0
1.5
40
2.0
50
2.5
60
3.0
70
3.5
80
4.0
90
4.5
100
5.0
-5
-4
-3
-2
-1
f0
+1
+2
+3
+4
+5
-5
-4
-3
-2
-1
f0
Frequency/MHz
+1
+2
+3
Frequency/MHz
3-cavity band-stop filter
Diagram II:
0
Attenuation/dB
Attenuation/dB
Diagram I:
10
Detail see
diagram II
20
30
0
0.5
1.0
1.5
40
2.0
50
2.5
60
3.0
70
3.5
80
4.0
90
4.5
100
5.0
-5
-4
-3
-2
-1
f0
+1
+2
+3
Frequency/MHz
+4
+5
-5
-4
-3
-2
-1
f0
+1
+2
+3
Frequency/MHz
49
S-P Filter
380 … 470 MHz
The S-P filter (Stop-Pass filter) is used to attenuate
interfering signals located extremely close to the
operational frequency.
It can be used:
– in the transmission path to suppress side band
noise and to attenuate intermodulation products
at the receiving frequecies,
– in the receiving path to attenuate transmitting
frequencies,
– as a component for combiners with very low
frequency spacing.
Design and construction:
The S-P filter is designed as a high Q temperature
stabilized λ/4 coaxial resonator. Using a special
temperature stabilized coupling, high stop band
attenuation can be adjusted very close to the pass
band frequency.
Filter characteristics:
Narrow pass band range with low insertion loss,
high stop band attenuation at the stop band frequency. Even in case of very small spacing
between the pass band and the stop band frequency a high stop band attenuation is achieved,
which can not be achieved using standard bandpass filters of the same size.
Combination of several S-P filters:
Several S-P filters can be interconnected by cables
with an electrical length of λ/4.
Insertion loss of the filter combination = Sum insertion loss of the individual filters + cable attenuation
of the interconnecting cables (about 0.1 dB per
cable). Stop band attenuation of the filter combination = Sum stop band attenuation of the individual
filters + additional stop band attenuation.
If the stop band attenuation of the individual filters
exceeds 10 dB, approximately the following applies:
additional stop band attenuation = (n – 1) x 5 dB;
n = number of individual filters.
For special applications S-P filters can also be interconnected with band-pass filters.
Tuning:
The S-P filter is tuned to the desired pass band and
stop band frequency at the factory. Please specify
desired pass band and stop band frequency when
ordering.
The S-P filter can also be tuned on site using the
supplied instructions.
Customized versions
For special applications S-P filters for even lower
frequency spacing or lower insertion loss are
available.
Technical Data
Type No.
Frequency range
Insertion loss
VSWR
Impedance
Input power
Temperature range
Effect of temperature
Connectors
Material
Installation
Attached hardware
Weight
Packing size
Dimensions (w x h x d)
50
K 65 21 26 1
380 … 470 MHz
0.5 ±0.15 dB
< 1.5 (at pass band frequency)
50 Ω
< 200 W
–20 … +60 °C
< 1.2 kHz / °C
N female
Outer conductor: Aluminium
Inner conductor: Brass, silver-plated
Free standing or wall mounting
S-P filter with 2 mounting angles
and 2 connecting pieces
5 kg
210 mm x 490 mm x 210 mm
190 mm x max. 350 mm x 190 mm
(with tuning rod)
S-P Filter
380 … 470 MHz
Typical attenuation curves
-1
f0
0
A
B
C
D
E
F
A
5
B
C
D
-0.5
f0
+0.5
10
Attenuation/dB
Tuning example:
15
20
E
1
dB
25
2
30
3
F
4
35
40
+2
+3
Frequency/MHz
f0
0
+4
+1
A
5
B
10
15
A
B
C
D
E
F
C
D
-0.5
f0 +0.5
20
1
E
25
dB
Attenuation/dB
+1
2
30
3
35
F
4
40
-4
-3
-2
-1
Frequency/MHz
Curve
Frequency spacing
pass band frequency / stop band frequency
A
B
C
D
E
F
0.5 MHz
1.0 MHz
1.5 MHz
2.0 MHz
3.0 MHz
4.0 MHz
51
S-P Filter
380 … 470 MHz
The S-P filter (Stop-Pass filter) is suitable
for attenuating interfering frequencies,
close to the operational frequency band.
It is designed for operation with one transmitting channel or several receiving
channels.
It can be used:
– in the transmission path for suppressing
sideband noise and for attenuating
intermodulation products at the receiving
frequencies,
– in the receiving path for attenuating
transmitting frequencies,
– as a duplexer component.
Design and construction:
The S-P filter consists of three or four S-P
resonators, interconnected by cables of
defined electrical length.
721 759
721 761
Filter characteristics:
721 759 / 721 760: Broad pass band range
with low insertion loss in the low band, high
stop band attenuation at the stop band
frequencies in the high band.
721 761 / 721 762: Broad pass band range
with low insertion loss in the high band,
high stop band attenuation at the stop band
frequencies in the low band.
Tuning:
The S-P filter can only be tuned at the factory because of its special design. Special
requests such as: Special band spacing,
switching bandwidths or attenuation can be
taken into account. When ordering please
specify the desired high and low band frequencies.
Technical Data
Type No.
Number of resonators
Frequency range
Band spacing
Switching bandwidth
Insertion loss
Stop band attenuation
VSWR
Impedance
Input power
721 759 (Pass band: low band/Stop band: high band)
721 761 (Pass band: high band/Stop band: low band)
721 760 (Pass band: low band/Stop band: high band)
721 762 (Pass band: high band/Stop band: low band)
4
380 … 470 MHz
5 MHz
10 MHz
5 MHz
10 MHz
0.2 MHz 0.5 MHz 0.5 MHz 1.0 MHz 2.0 MHz 0.5 MHz * 1.0 MHz * 2.0 MHz 3.0 MHz 4.0 MHz
< 1.2 dB < 1.5 dB < 0.7 dB < 0.8 dB < 1.0 dB < 1.6 dB < 1.8 dB < 1.0 dB < 1.2 dB < 1.5 dB
> 55 dB > 55 dB > 70 dB > 65 dB > 60 dB > 70 dB > 60 dB > 75 dB > 70 dB > 65 dB
< 1.4
50 Ω
< 100 W (–30 … +55 °C) / < 50 W (+55 … +70 °C)
* < 50 W (–30 … +55 °C) / < 30 W (+55 … +70 °C)
Temperature range
–30 … +70 °C
Connectors
N female
Material
S-P resonators: Aluminium / brass
Cable
RG 223/U
Installation
With 4 screws (M4)
Weight
1.0 kg
1.2 kg
Packing size
175 mm x 60 mm x 200 mm
175 mm x 60 mm x 200 mm
Dimensions (w x h x d)
136 mm x 50 mm x 160 mm
171 mm x 50 mm x 160 mm
(with connectors)
(with connectors)
52
3
5.0 MHz *
< 1.6 dB
> 55 dB
S-P Filter
380 … 470 MHz
Typical attenuation curves
Tuning examples:
721 759 / 721 761
721 760 / 721 762
Band spacing: 5 MHz
Switching bandwidth: 0.5 MHz
Band spacing: 5 MHz
Switching bandwidth: 1.0 MHz
10
Attenuation/dB
Attenuation/dB
0
721 761
721 759
20
30
0
10
40
50
50
60
60
70
70
80
80
90
90
425
721 762
30
40
100
721 760
20
100
427
429
431
433
435
437
439
441
443
445
425
427
429
431
433
435
Frequency/MHz
Band spacing: 10 MHz
Switching bandwidth: 1.0 MHz
Attenuation/dB
Attenuation/dB
721 759
721 761
20
30
10
50
60
60
70
70
80
80
90
90
721 762
721 760
100
100
427
429
431
433
435
437
439
441
443
425
445
427
429
431
433
435
Band spacing: 10 MHz
Switching bandwidth: 2.0 MHz
439
441
443
445
Band spacing: 10 MHz
Switching bandwidth: 4.0 MHz
Attenuation/dB
0
721 761
721 759
437
Frequency/MHz
Frequency/MHz
Attenuation/dB
445
30
50
20
30
0
10
721 762
30
40
50
50
60
60
70
70
80
80
90
90
100
721 760
20
40
425
443
20
40
10
441
0
40
425
439
Band spacing: 10 MHz
Switching bandwidth: 2.0 MHz
0
10
437
Frequency/MHz
100
427
429
431
433
435
437
439
441
443
Frequency/MHz
445
425
427
429
431
433
435
437
439
441
443
445
Frequency/MHz
53
S-P Filter
380 … 470 MHz
The S-P filter (Stop-Pass filter) is suitable
for attenuating interfering frequencies, close
to the operational frequency band. It is designed for operation with several transmitting and receiving channels.
It can be used:
– in the transmission path for suppressing
sideband noise and for attenuating intermodulation products at the receiving frequencies,
– in the receiving path for attenuating
transmitting frequencies,
– as a duplexer component.
Design and construction:
The S-P filter consists of three or four S-P
resonators, interconnected by cables of
defined electrical length.
Filter characteristics:
723 594 / 723 790: Broad pass band range
with low insertion loss in the low band, high
stop band attenuation at the stop band frequencies in the high band.
721 767 / 724 581: Broad pass band range
with low insertion loss in the high band,
high stop band attenuation at the stop band
frequencies in the low band.
723 594
721 767
Tuning:
The S-P filter can only be tuned at the factory because of its special design.
Special requests such as: Special band
spacing, switching bandwidths or attenuation can be taken into account. When ordering please specify the desired high and
low band frequencies.
Technical Data
Type No.
Number of resonators
Frequency range
Band spacing
Switching bandwidth
Insertion loss
Stop band attenuation
VSWR
Impedance
Input power
723 594 (Pass band: low band/Stop band: high band)
721 767 (Pass band: high band/Stop band: low band)
723 790 (Pass band: low band/Stop band: high band)
724 581 (Pass band: high band/Stop band: low band)
4
380 … 470 MHz
5 MHz
10 MHz
5 MHz
10 MHz
0.2 MHz 0.5 MHz 0.5 MHz 1.0 MHz 2.0 MHz 0.5 MHz * 1.0 MHz * 2.0 MHz 3.0 MHz 4.0 MHz
< 1.2 dB < 1.5 dB < 0.7 dB < 0.8 dB < 1.0 dB < 1.6 dB < 1.8 dB < 1.0 dB < 1.2 dB < 1.5 dB
> 55 dB > 55 dB > 70 dB > 65 dB > 60 dB > 70 dB > 60 dB > 75 dB > 70 dB > 65 dB
< 1.4
50 Ω
< 100 W (–30 … +55 °C) / < 50 W (+55 … +70 °C)
* < 50 W (–30 … +55 °C) / < 30 W (+55 … +70 °C)
Temperature range
–30 … +70 °C
Connectors
N female, silver-plated
Material
S-P resonators: Brass, silver-plated
Cable
RG 223/U
Installation
With 4 screws (M5)
Weight
1.3 kg
1.8 kg
Packing size
250 mm x 85 mm x 195 mm
Dimensions (w x h x d)
155 mm x 60 mm x 175 mm
196 mm x 60 mm x 175 mm
(with connectors)
(with connectors)
54
3
5.0 MHz *
< 1.6
> 55 dB
S-P Filter
380 … 470 MHz
Typical attenuation curves
723 594 / 721 767
723 790 / 724 581
Band spacing: 5 MHz
Switching bandwidth: 0.5 MHz
Band spacing: 5 MHz
Switching bandwidth: 1.0 MHz
0
721 767
723 594
10
Attenuation/dB
Attenuation/dB
Tuning examples:
20
30
0
20
30
40
40
50
50
60
60
70
70
80
80
90
90
100
425
724 581
723 790
10
100
427
429
431
433
435
437
439
441
443
445
425
427
429
431
433
435
Frequency/MHz
0
723 594
721 767
20
30
30
50
60
60
70
70
80
80
90
90
100
100
427
429
431
433
435
437
439
441
443
425
445
427
429
431
433
435
Band spacing: 10 MHz
Switching bandwidth: 2.0 MHz
439
441
443
445
Band spacing: 10 MHz
Switching bandwidth: 4.0 MHz
Attenuation/dB
0
721 767
723 594
437
Frequency/MHz
Frequency/MHz
Attenuation/dB
445
20
50
20
30
0
10
724 581
723 790
20
30
40
40
50
50
60
60
70
70
80
80
90
90
100
100
425
443
724 581
723 790
10
40
10
441
0
40
425
439
Band spacing: 10 MHz
Switching bandwidth: 2.0 MHz
Attenuation/dB
Attenuation/dB
Band spacing: 10 MHz
Switching bandwidth: 1.0 MHz
10
437
Frequency/MHz
427
429
431
433
435
437
439
441
Frequency/MHz
443
445
425
427
429
431
433
435
437
439
441
443
445
Frequency/MHz
55
Low-pass Filter
400 – 470 MHz
The low-pass filter is suited as receiving or
transmitting filter.
It can be used:
– to suppress harmonics in the transmitting
path,
– to suppress interfering signals in the
receiving path.
Design and construction:
The low-pass filter consists of lumped L-C
elements.
Filter characteristics:
Broad pass band range with low insertion
loss, high stop band attenuation in the stop
band.
Installation:
The right angle mounting plate allows
horizontal as well as vertical installation.
Technical Data
Type No.
Pass band
Insertion loss
Stop band attenuation
VSWR
Impedance
Input power
Temperature range
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
56
725 168
400 – 470 MHz
< 0.55 dB (400 – 470 MHz)
> 45 dB (800 – 3300 MHz)
< 1.4 (400 – 470 MHz)
50 Ω
< 50 W (–30 ... +50°C)
< 20 W (+50 ... +60 °C)
–30 … +60 °C
N male at a 220 mm long cable
Housing: Aluminium
Cable: RG 223/U
With 2 screws (max. 4 mm diameter)
0.3 kg
190 mm x 65 mm x 110 mm
88 mm x 64 mm x 40 mm
(without connectors)
Low-pass Filter
400 – 470 MHz
Typical attenuation curves
Attenuation/dB
Diagram I:
0
5
Detail see
diagram II
10
15
20
25
30
35
40
45
50
400
450
500
550
600
650
700
750
800 850 900
Frequency/MHz
Attenuation/dB
Diagram II:
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
400
410
420
430
440
450
460
470
480
490
500
Frequency/MHz
57
58
Duplexers
Duplexers
68 ... 87.5 MHz
146 ... 174 MHz
380 ... 470 MHz
59
60
Summary of Articles
Duplexers:
Description
Type No.
Frequency range
... tunable bandwidth
– fixed bandwidth (not tunable)
Max. input power
Page
Duplexer
793 356
68 ... 87.5 MHz
15 W
62
Duplexer
718 987
68 ... 87.5 MHz
100 W
64
Duplexer
719 069
68 ... 87.5 MHz
100 W
64
Duplexer
720 209
68 ... 87.5 MHz
100 W
66
Duplexer
719 084
68 ... 87.5 MHz
100 W
66
Duplexer
K 64 41 43
68 ... 87.5 MHz
200 W
68
Duplexer
K 64 41 44
68 ... 87.5 MHz
200 W
68
Duplexer
793 357
146 ... 174 MHz
15 W
70
Duplexer
719 628
146 ... 174 MHz
100 W
72
Duplexer
718 388
146 ... 174 MHz
100 W
72
Duplexer
720 642
146 ... 174 MHz
100 W
74
Duplexer
720 877
146 ... 174 MHz
100 W
74
Duplexer
792 978
146 ... 164 MHz
300 W
76
Duplexer
792 979
156 ... 174 MHz
100 W
76
Duplexer
K 64 41 23
146 ... 174 MHz
200 W
78
Duplexer
K 64 41 24
146 ... 174 MHz
200 W
78
Duplexer
791 255
380 ... 470 MHz
15 W
80
Duplexer
719 785
380 ... 470 MHz
100 W
82
Duplexer
718 290
380 ... 470 MHz
100 W
82
Duplexer
718 313
380 ... 470 MHz
100 W
84
Duplexer
719 237
380 ... 470 MHz
100 W
84
Duplexer (TETRA, TETRAPOL)
782 10361
380 – 395 MHz
200 W
86
Duplexer (TETRA, TETRAPOL)
782 10362
382 – 397 MHz
200 W
86
Duplexer (TETRA, TETRAPOL)
782 10363
385 – 400 MHz
200 W
86
Duplexer (TETRA, TETRAPOL)
782 10371
380 – 395 MHz
200 W
86
Duplexer (TETRA, TETRAPOL)
782 10372
382 – 397 MHz
200 W
86
Duplexer (TETRA, TETRAPOL)
782 10373
385 – 400 MHz
200 W
86
Duplexer (TETRA, TETRAPOL)
782 10364
410 – 425 MHz
200 W
88
Duplexer (TETRA, TETRAPOL)
782 10365
415 – 430 MHz
200 W
88
Duplexer (TETRA, TETRAPOL)
782 10374
410 – 425 MHz
200 W
88
Duplexer (TETRA, TETRAPOL)
782 10375
415 – 430 MHz
200 W
88
Duplexer (TETRA, TETRAPOL)
782 10366
450 – 465 MHz
200 W
90
Duplexer (TETRA, TETRAPOL)
782 10367
455 – 470 MHz
200 W
90
Duplexer (TETRA, TETRAPOL)
782 10376
450 – 465 MHz
200 W
90
Duplexer (TETRA, TETRAPOL)
782 10377
455 – 470 MHz
200 W
90
Duplexer (4 Resonators)
K 65 41 25
380 ... 470 MHz
200 W
92
Duplexer (6 Resonators)
K 65 41 26
380 ... 470 MHz
200 W
92
61
Duplexer
68 … 87.5 MHz
The duplexer is suited to combine one
transmitter with one or several receivers to
a common antenna.
Design and construction:
The duplexer consists of a 4-cavity S-P
filter (Stop-Pass filter) for the low band and
a 4-cavity S-P filter for the high band.
The S-P filters are designed to allow the
transmitter to operate in the low band or
in the high band.
Tuning:
The duplexer is tunable within the specified
frequency range.
When ordering please note the desired low
and high band frequencies.
The duplexer can be tuned on site using
the instructions available on request.
Technical Data
793 356
Type No.
Frequency range
Duplex spacing
Switching bandwidth
Insertion loss 1)
Isolation 2)
VSWR
Impedance
Input power 3)
Temperature range
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
1)
68 … 87.5 MHz
9.8 MHz
< 1.0 MHz
< 1.2 dB (at 1 MHz switching bandwidth)
> 65 dB (at 1 MHz switching bandwidth)
< 1.4 (at operating frequency)
50 Ω
< 15 W
–20 … +50 °C
SMB male, angled
Brass, silver-plated
With 3 screws (max. 3 mm diameter)
0.25 kg
150 mm x 30 mm x 120 mm
144 mm x 20 mm x 114 mm
(with connectors)
Low band → Antenna / High band → Antenna
Low band ↔ High band
3)
Low band or High band
2)
62
Duplexer
68 … 87.5 MHz
Typical attenuation curves
Tuning example:
Duplex spacing: 9.8 MHz
Attenuation/dB
Diagram I:
0
10
Detail see
diagram II
20
Detail see
diagram III
30
40
50
60
70
80
90
100
68
70
72
74
76
78
80
82
84
86
88
77
78
87
88
Frequency/MHz
Attenuation/dB
Diagram II: (Low band ↔ antenna)
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
68
69
70
71
72
73
74
75
76
Frequency/MHz
Attenuation/dB
Diagram III: (High band ↔ antenna)
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
78
79
80
81
82
83
84
85
86
Frequency/MHz
63
Duplexer
68 … 87.5 MHz
The duplexer is suited to combine one
transmitter with one or several receivers
to a common antenna.
Design and construction:
The duplexer consists of a 3-cavity or
4-cavity S-P filter (Stop-Pass filter) for the
low band and a 3-cavity or 4-cavity S-P
filter for the high band. The two S-P filters
are interconnected to a common antenna
output using cables of defined electrical
lengths.
The S-P filters are designed to allow the
transmitter to operate in the low band or
in the high band.
718 987
Tuning:
The duplexer, because of its special construction can only be tuned at the factory.
Special requests like other duplex spacings, switching bandwidths or attenuation
values can be taken into account.
When ordering please specify the desired
high and low band frequencies.
719 069
Technical Data
718 987
Type No.
Number of resonators
Frequency range
Duplex spacing
Switching bandwidth
Insertion loss 1)
Isolation 2)
VSWR
Impedance
Input power 3)
Temperature range
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
1)
2)
3)
4+4
68 … 87.5 MHz
Tuning examples
3 MHz
6 MHz
9.8 MHz
2 MHz
6 MHz
9.8 MHz
0.1 MHz 0.5 MHz 1.0 MHz 1.5 MHz 2.5 MHz 0.1 MHz * 1.0 MHz 2.5 MHz 3.3 MHz
< 1.5 dB < 0.8 dB < 0.8 dB < 0.8 dB < 1.0 dB < 1.8 dB < 1.0 dB < 1.0 dB < 1.0 dB
> 65 dB > 70 dB > 75 dB > 70 dB > 65 dB > 65 dB > 75 dB > 80 dB > 70 dB
< 1.4 (at operating frequency)
50 Ω
< 100 W (–30 … +55 °C) / < 50 W (+55 … +70 °C)
* < 50 W (–30 … +55 °C) / < 30 W (+55 … +70 °C)
–30 … +70 °C
N female
S-P resonators: Aluminium / copper, silver-plated; cable: RG 223/U
With 4 screws (max. 4 mm diameter)
2.15 kg
2.75 kg
275 mm x 60 mm x 245 mm
362 mm x 60 mm x 245 mm
263 mm x 50 mm x 190 mm
350 mm x 50 mm x 190 mm
(with connectors)
(with connectors)
Low band ↔ Antenna / High band ↔ Antenna
Low band ↔ High band
Low band or High band
64
719 069
3+3
4.0 MHz
< 1.2 dB
> 65 dB
Duplexer
68 … 87.5 MHz
Typical attenuation curves
Duplexer 718 987
Duplexer 719 069
Duplex spacing: 6.0 MHz
Switching bandwidth: 0.5 MHz
Duplex spacing: 6.0 MHz
Switching bandwidth: 1.0 MHz
Attenuation/dB
Attenuation/dB
Tuning examples:
0
A
B
10
20
30
0
30
40
50
50
60
60
70
70
80
80
90
90
68
B
20
40
100
A
10
100
70
72
74
76
78
80
82
84
86
88
68
70
72
74
76
78
Frequency/MHz
0
B
10
20
30
A
88
B
20
30
50
50
60
60
70
70
80
80
90
90
100
100
70
72
74
76
78
80
82
84
86
88
68
70
72
74
76
78
Frequency/MHz
82
84
86
88
Attenuation/dB
Duplex spacing: 9.8 MHz
Switching bandwidth: 4.0 MHz
0
A
80
Frequency/MHz
Duplex spacing: 9.8 MHz
Switching bandwidth: 2.5 MHz
Attenuation/dB
86
10
40
B
10
20
30
0
A
20
30
40
50
50
60
60
70
70
80
80
90
90
100
B
10
40
68
84
0
40
68
82
Duplex spacing: 9.8 MHz
Switching bandwidth: 2.5 MHz
Attenuation/dB
Attenuation/dB
Duplex spacing: 9.8 MHz
Switching bandwidth: 1.0 MHz
A
80
Frequency/MHz
100
70
72
74
76
78
80
82
84
86
88
68
70
72
74
76
78
80
82
84
86
88
Frequency/MHz
Frequency/MHz
A: Low band ↔ antenna
B: High band ↔ antenna
65
Duplexer
68 … 87.5 MHz
The duplexer is suited to combine one or
several transmitters with one or several
receivers to a common antenna.
It can also be used to combine two transmitters to a common transmitting antenna.
Design and construction:
The duplexer consists of a 3-cavity or 4cavity S-P filter (Stop-Pass filter) for the low
band and a 3-cavity or 4-cavity S-P filter for
the high band. The two S-P filters are interconnected to a common antenna output
using cables of defined electrical lengths.
720 209
The S-P filters are designed to allow the
transmitters to be operated in either the low
band or the high band or in both bands
together.
Tuning:
The duplexer, because of its special construction can only be tuned at the factory.
Special requests like other duplex spacings, switching bandwidths or attenuation
values can be taken into account.
When ordering please specify the desired
high and low band frequencies.
719 084
Technical Data
Type No.
Number of resonators
Frequency range
Duplex spacing
Switching bandwidth
Insertion loss 1)
Isolation 2)
VSWR
Impedance
Input power 3)
Temperature range
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
1)
2)
3)
720 209
719 084
3+3
4+4
68 … 87.5 MHz
Tuning examples
3 MHz
6 MHz
9.8 MHz
2 MHz
6 MHz
9.8 MHz
0.1 MHz 0.5 MHz 1.0 MHz 1.5 MHz 2.5 MHz 0.1 MHz * 1.0 MHz 2.5 MHz 3.3 MHz
< 1.5 dB < 0.8 dB < 0.8 dB < 0.8 dB < 1.0 dB < 1.8 dB < 1.0 dB < 1.0 dB < 1.0 dB
> 65 dB > 70 dB > 75 dB > 70 dB > 65 dB > 65 dB > 75 dB > 80 dB > 70 dB
< 1.4 (at operating frequency)
50 Ω
< 100 W (–30 … +55 °C) / < 50 W (+55 … +70 °C)
* < 50 W (–30 … +55 °C) / < 30 W (+55 … +70 °C)
–30 … +70 °C
N female, silver-plated
S-P resonators: Brass, silver-plated / copper, silver-plated; cable: RG 223/U
With 4 screws (max. 5 mm diameter)
3.0 kg
3.5 kg
275 mm x 60 mm x 245 mm
355 mm x 60 mm x 245 mm
270 mm x 58 mm x 190 mm
350 mm x 58 mm x 190 mm
(with connectors)
(with connectors)
Low band ↔ Antenna / High band ↔ Antenna
Low band ↔ High band
Input power low band or high band respectively the summ of the input powers low band and high band.
66
4.0 MHz
< 1.2 dB
> 65 dB
Duplexer
68 … 87.5 MHz
Typical attenuation curves
Duplexer 720 209
Duplexer 719 084
Duplex spacing: 6.0 MHz
Switching bandwidth: 0.5 MHz
Duplex spacing: 6.0 MHz
Switching bandwidth: 1.0 MHz
Attenuation/dB
Attenuation/dB
Tuning examples:
0
A
B
10
20
30
0
30
40
50
50
60
60
70
70
80
80
90
90
68
B
20
40
100
A
10
100
70
72
74
76
78
80
82
84
86
88
68
70
72
74
76
78
Frequency/MHz
0
B
10
20
30
A
88
B
20
30
50
50
60
60
70
70
80
80
90
90
100
100
70
72
74
76
78
80
82
84
86
88
68
70
72
74
76
78
Frequency/MHz
82
84
86
88
Attenuation/dB
Duplex spacing: 9.8 MHz
Switching bandwidth: 4.0 MHz
0
A
80
Frequency/MHz
Duplex spacing: 9.8 MHz
Switching bandwidth: 2.5 MHz
Attenuation/dB
86
10
40
B
10
20
30
0
A
20
30
40
50
50
60
60
70
70
80
80
90
90
100
B
10
40
68
84
0
40
68
82
Duplex spacing: 9.8 MHz
Switching bandwidth: 2.5 MHz
Attenuation/dB
Attenuation/dB
Duplex spacing: 9.8 MHz
Switching bandwidth: 1.0 MHz
A
80
Frequency/MHz
100
70
72
74
76
78
80
82
84
86
88
68
70
72
74
76
78
80
82
84
86
88
Frequency/MHz
Frequency/MHz
A: Low band ↔ antenna
B: High band ↔ antenna
67
Duplexer
68 … 87.5 MHz
The duplexer is suited to combine transmitters and
receivers (or transmitter and transmitter or receiver
and receiver) to a common antenna.
It can be used :
– for very small frequency spacing,
– to obtain very high stop band attenuation (more than
100 dB) at very low insertion loss.
Design and construction:
The duplexer consists of four or six S-P filters
K 64 21 46 1 / K 64 21 47 1 and interconnecting cables
of defined length, depending on the operating frequencies. The S-P filters consist of temperature stabilized
λ/4 coaxial resonators. Using a specially temperature
stabilized coupling a high stop band attenuation can be
adjusted very close to the pass band frequency.
Tuning:
The stop band attenuation is dependent on the frequency spacing and the number of S-P filters. The stop
band attenuation for four or six S-P filters can be read
from the diagram.
The duplexer is tuned to the desired pass band frequencies at the factory. When ordering please specify
the pass band frequencies.
The duplexer can also be tuned on site using the supplied instructions.
Installation:
The duplexer can be used as a stand alone unit or wall
mounted using the supplied brackets. The individual
S-P filters can be connected to each other using the
supplied straps.
Custom versions:
For special applications more than six S-P filters can
be combined.
K 64 41 43
Technical Data
Type No.
Number of resonators
Frequency range
Insertion loss
VSWR
Impedance
Input power
Effect of temperature
Temperature range
Material
Connectors
Weight
Packing size by mm
Dimensions w x h x d, by mm
Attached hardware
68
K 64 41 43
4
K 64 41 44
6
68 … 87.5 MHz
1.0 ±0.2 dB
1.5 ±0.3 dB
< 1.4 (at operating frequency)
50 Ω
< 200 W
< 0.2 kHz / °C
–30 … +60 °C
Outer conductor: Aluminium
Inner conductor: Brass, silver-plated
N female
65 kg
97 kg
4x 210 x 1660 x 210
6x 210 x 1660 x 210
190 x max. 1500 x 760
190 x max. 1500 x 1140
(with tuning rods)
(with tuning rods)
S-P filter with interconnecting cables,
2 brackets and 2 straps
for each resonator
Duplexer
68 … 68.5 MHz
Typical attenuation curves
Number of
resonators
Curve
Insertion
loss
Type No.
4
6
1
2
1.0 dB
1.5 dB
K 64 41 43
K 64 41 44
120
Stop band
attenuation/dB
110
100
2
90
80
70
1
60
0.2
0.4
0.6
0.8
1.0
Frequency spacing between pass band frequency
and stop band frequency/MHz
69
Duplexer
146 … 174 MHz
The duplexer is suited to combine one
transmitter with one or several receivers
to a common antenna.
Design and construction:
The duplexer consists of a 4-cavity S-P
filter (Stop-Pass filter) for the low band
and a 4-cavity S-P filter for the high band.
The S-P filters are designed to allow the
transmitter to operate in the low band or
in the high band.
Tuning:
The duplexer is tunable within the specified
frequency range.
When ordering please note the desired low
and high band frequencies.
The duplexer can be tuned on site using
the instructions available on request.
Technical Data
793 357
Type No.
Frequency range
Duplex spacing
Switching bandwidth
Insertion loss 1)
Isolation 2)
VSWR
Impedance
Input power 3)
Temperature range
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
146 … 174 MHz
4.6 MHz
< 1.0 MHz
< 2.0 dB (at 1 MHz switching bandwidth)
> 65 dB (at 1 MHz switching bandwidth)
< 1.4 (at operating frequency)
50 Ω
< 15 W
–20 … +50 °C
SMB male, angled
Brass, silver-plated
With 3 screws (max. 3 mm diameter)
0.25 kg
150 mm x 30 mm x 120 mm
144 mm x 20 mm x 114 mm
(with connectors)
Low band ↔ Antenna / High band ↔ Antenna
Low band ↔ High band
3)
Low band or High band
1)
2)
70
Duplexer
146 … 174 MHz
Typical attenuation curves
Tuning example:
Duplex spacing: 10 MHz
Attenuation/dB
Diagram I:
0
10
Detail see
diagram II
20
Detail see
diagram III
30
40
50
60
70
80
90
100
155
156
157
158
159
160
161
162
163
164
165
159.5
160
164.5
165
Frequency/MHz
Attenuation/dB
Diagram II: (Low band ↔ antenna)
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
155
155.5
156
156.5
157
157.5
158
158.5
159
Frequency/MHz
Attenuation/dB
Diagram III: (High band ↔ antenna)
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
160
160.5
161
161.5
162
162.5
163
163.5
164
Frequency/MHz
71
Duplexer
146 … 174 MHz
The duplexer is suited to combine one
transmitter with one or several receivers
to a common antenna.
Design and construction:
The duplexer consists of a 3-cavity or
4-cavity S-P filter (Stop-Pass filter) for the
low band and a 3-cavity or 4-cavity S-P
filter for the high band. The two S-P filters
are interconnected to a common antenna
output using cables of defined electrical
lengths.
The S-P filters are designed to allow the
transmitter to operate in the low band or
in the high band.
719 628
Tuning:
The duplexer, because of its special construction can only be tuned at the factory.
Special requests like other duplex spacings, switching bandwidths or attenuation
values can be taken into account.
When ordering please specify the desired
high and low band frequencies.
718 388
Technical Data
719 628
Type No.
Number of resonators
Frequency range
Duplex spacing
Switching bandwidth
Insertion loss 1)
Isolation 2)
VSWR
Impedance
Input power 3)
Temperature range
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
1)
2)
3)
4+4
146 … 174 MHz
Tuning examples
3.5 MHz
4.6 MHz
6 MHz
3 MHz
4.6 MHz
6 MHz
0.1 MHz 0.1 MHz 0.5 MHz 1.0 MHz 1.0 MHz 0.1 MHz * 0.5 MHz 1.0 MHz * 1.9 MHz * 2.0 MHz
< 1.5 dB < 1.0 dB < 1.2 dB < 1.3 dB < 1.2 dB < 1.6 dB < 1.5 dB < 1.6 dB < 2.3 dB < 1.5 dB
> 65 dB > 75 dB > 65 dB > 60 dB > 65 dB > 70 dB > 75 dB > 65 dB > 60 dB > 65 dB
< 1.4 (at operating frequency)
50 Ω
< 100 W (–30 … +55 °C) / < 50 W (+55 … +70 °C)
* < 50 W (–30 … +55 °C) / < 30 W (+55 … +70 °C)
–30 … +70 °C
N female
S-P resonators: Aluminium / copper, silver-plated; cable: RG 223/U
With 4 screws (max. 4 mm diameter)
2.1 kg
2.75 kg
275 mm x 60 mm x 245 mm
360 mm x 60 mm x 245 mm
263 mm x 50 mm x 170 mm
350 mm x 50 mm x 170 mm
(with connectors)
(with connectors)
Low band ↔ Antenna / High band ↔ Antenna
Low band ↔ High band
Low band or High band
72
3+3
718 388
Duplexer
146 … 174 MHz
Typical attenuation curves
Duplexer 719 628
Duplexer 718 388
Duplex spacing: 4.6 MHz
Switching bandwidth: 0.1 MHz
Duplex spacing: 4.6 MHz
Switching bandwidth: 0.5 MHz
Attenuation/dB
Attenuation/dB
Tuning examples:
0
A
B
10
20
30
0
A
20
30
40
40
50
50
60
60
70
70
80
80
90
90
100
155
B
10
100
156
157
158
159
160
161
162
163
164
165
155
156
157
158
159
160
0
B
10
20
30
10
165
A
B
30
50
50
60
60
70
70
80
80
90
90
100
100
156
157
158
159
160
161
162
163
164
155
165
156
157
158
159
160
Duplex spacing: 6.0 MHz
Switching bandwidth: 1.0 MHz
162
163
164
165
Duplex spacing: 6.0 MHz
Switching bandwidth: 2.0 MHz
Attenuation/dB
0
A
161
Frequency/MHz
Frequency/MHz
Attenuation/dB
164
20
40
B
10
20
30
0
10
A
B
20
30
40
40
50
50
60
60
70
70
80
80
90
90
100
100
155
163
0
40
155
162
Duplex spacing: 4.6 MHz
Switching bandwidth: 1.9 MHz
Attenuation/dB
Attenuation/dB
Duplex spacing: 4.6 MHz
Switching bandwidth: 1.0 MHz
A
161
Frequency/MHz
Frequency/MHz
156
157
158
159
160
161
162
163
164
165
155
Frequency/MHz
156
157
158
159
160
161
162
163
164
165
Frequency/MHz
A: Low band ↔ antenna
B: High band ↔ antenna
73
Duplexer
146 … 174 MHz
The duplexer is suited to combine one or
several transmitters with one or several
receivers to a common antenna.
It can also be used to combine two transmitters to a common transmitting antenna.
Design and construction:
The duplexer consists of a 3-cavity or
4-cavity S-P filter (Stop-Pass filter) for the
low band and a 3-cavity or 4-cavity S-P
filter for the high band. The two S-P filters
are interconnected to a common antenna
output using cables of defined electrical
lengths.
720 642
The S-P filters are designed to allow the
transmitters to be operated in either the
low band or the high band or in both bands
together.
Tuning:
The duplexer, because of its special construction can only be tuned at the factory.
Special requests like other duplex spacings, switching bandwidths or attenuation
values can be taken into account.
When ordering please specify the desired
high and low band frequencies.
720 877
Technical Data
Type No.
Number of resonators
Frequency range
Duplex spacing
Switching bandwidth
Insertion loss 1)
Isolation 2)
VSWR
Impedance
Input power 3)
Temperature range
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
1)
2)
3)
720 642
720 877
3+3
4+4
146 … 174 MHz
Tuning examples
3.5 MHz
4.6 MHz
6 MHz
3 MHz
4.6 MHz
6 MHz
0.1 MHz 0.1 MHz 0.5 MHz 1.0 MHz 1.0 MHz 0.1 MHz * 0.5 MHz 1.0 MHz * 1.9 MHz * 2.0 MHz
< 1.5 dB < 1.0 dB < 1.2 dB < 1.3 dB < 1.2 dB < 1.6 dB < 1.5 dB < 1.6 dB < 2.3 dB < 1.5 dB
> 65 dB > 75 dB > 65 dB > 60 dB > 65 dB > 70 dB > 75 dB > 65 dB > 60 dB > 65 dB
< 1.4 (at operating frequency)
50 Ω
< 100 W (–30 … +55 °C) / < 50 W (+55 … +70 °C)
* < 50 W (–30 … +55 °C) / < 30 W (+55 … +70 °C)
–30 … +70 °C
N female, silver-plated
S-P resonators: Brass, silver-plated / copper, silver-plated; cable: RG 223/U
With 4 screws (max. 5 mm diameter)
3.0 kg
3.5 kg
450 mm x 130 mm x 330 mm
530 mm x 130 mm x 330 mm
270 mm x 58 mm x 190 mm
350 mm x 58 mm x 190 mm
(with connectors)
(with connectors)
Low band ↔ Antenna / High band ↔ Antenna
Low band ↔ High band
Input power low band or high band respectively the summ of the input powers low band and high band.
74
Duplexer
146 … 174 MHz
Typical attenuation curves
Duplexer 720 642
Duplexer 720 877
Duplex spacing: 4.6 MHz
Switching bandwidth: 0.1 MHz
Duplex spacing: 4.6 MHz
Switching bandwidth: 0.5 MHz
Attenuation/dB
Attenuation/dB
Tuning examples:
0
A
B
10
20
30
0
A
20
30
40
40
50
50
60
60
70
70
80
80
90
90
100
155
B
10
100
156
157
158
159
160
161
162
163
164
165
155
156
157
158
159
160
0
A
B
10
20
30
10
164
165
A
B
20
30
40
50
50
60
60
70
70
80
80
90
90
100
100
156
157
158
159
160
161
162
163
164
155
165
156
157
158
159
160
161
162
163
164
165
Frequency/MHz
Frequency/MHz
Duplex spacing: 6.0 MHz
Switching bandwidth: 1.0 MHz
Duplex spacing: 6.0 MHz
Switching bandwidth: 2.0 MHz
0
A
Attenuation/dB
Attenuation/dB
163
0
40
B
10
20
30
0
10
A
B
20
30
40
40
50
50
60
60
70
70
80
80
90
90
100
100
155
162
Duplex spacing: 4.6 MHz
Switching bandwidth: 1.9 MHz
Attenuation/dB
Attenuation/dB
Duplex spacing: 4.6 MHz
Switching bandwidth: 1.0 MHz
155
161
Frequency/MHz
Frequency/MHz
156
157
158
159
160
161
162
163
164
165
155
Frequency/MHz
A: Low band ↔ antenna
B: High band ↔ antenna
156
157
158
159
160
161
162
163
164
165
Frequency/MHz
75
Duplexer
146 ... 174 MHz
The duplexer is suited to combine one or
several transmitters with one or several
receivers to a common antenna. It can also
be used to combine two transmitters to a
common transmitting antenna.
Design and construction:
The duplexer consists of a 4-cavity S-P
filter (Stop-Pass filter) for the low band and
a 4-cavity S-P filter for the high band.
The S-P filters are designed to allow the
transmitters to be operated in either the
low band or the high band or in both bands
together.
Tuning:
The duplexer is tuned to the desired pass
band frequencies at the factory. Special requests like other duplex spacings, switching
bandwidths or attenuation values can be
taken into account.
792 978
792 979
When ordering please specify the desired
high and low band frequencies.
Technical Data
Type No.
Duplex spacing
Switching bandwidth
Insertion loss
Isolation
VSWR
Impedance
Input power 1)
Temperature range
Material
Connectors
Weight
Packing size
Dimensions
1)
792 978:
792 979:
Frequency range 146 ... 164 MHz
Frequency range 156 ... 174 MHz
Tuning examples
4.6 MHz
1.5 MHz
< 1.5 MHz
< 0.05 MHz
< 0.5 MHz
< 0.05 MHz
< 1.0 dB
< 0.7 dB
< 2.0 dB
< 1.5 dB
> 80 dB
> 90 dB
> 60 dB
> 65 dB
< 1.4 (at operating frequency)
50 Ω
< 300 W
< 100 W
–20 … +50 °C
Duplexer: Brass, silver-plated and varnished (RAL 7032)
Drawer: Aluminium
Front panel: Aluminium, varnished, grey (RAL 7032)
N female, silver-plated
6.7 kg
540 mm x 192 mm x 520 mm
540 mm x 192 mm x 520 mm
19˝ drawer with 2 height units with a plug-in depth of 380 mm
Input power low band or high band or the summ of the input powers low band and
high band.
76
Duplexer
146 ... 174 MHz
Typical attenuation curves
Tuning example:
792 979
Duplex spacing: 4.6 MHz
Switching bandwidth: 1.5 MHz
Attenuation/dB
Diagram I:
Low band ↔ antenna
High band ↔ antenna
0
10
Detail see
diagram II
20
30
40
50
60
70
80
90
100
160
161
162
163
164
165
166
167
168
169
170
Frequency/MHz
Attenuation/dB
Diagram II:
Low band ↔ antenna
High band ↔ antenna
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
160
161
162
163
164
165
166
167
168
169
170
Frequency/MHz
77
Duplexer
146 … 174 MHz
The duplexer is suited to combine transmitters and
receivers (or transmitter and transmitter or receiver
and receiver) to a common antenna.
It can be used :
– for very small frequency spacing,
– to obtain very high stop band attenuation (more
than 100 dB) at very low insertion loss.
Design and construction:
The duplexer consists of four or six S-P filters
K 64 21 26 1 and interconnecting cables of defined
length, depending on the operating frequencies.
The S-P filters consist of temperature stabilized
λ/4 coaxial resonators. Using a specially temperature stabilized coupling a high stop band attenuation can be adjusted very close to the pass band
frequency.
Tuning:
The stop band attenuation is dependent on the
frequency spacing and the number of S-P filters.
The stop band attenuation for four or six S-P filters
can be read from the diagram.
The duplexer is tuned to the desired pass band
frequencies at the factory. When ordering please
specify the pass band frequencies.
The duplexer can also be tuned on site using the
supplied instructions.
Installation:
The duplexer can be used as a stand alone unit or
wall mounted using the supplied brackets. The individual S-P filters can be connected to each other
using the supplied straps.
K 64 41 23
Custom versions:
For special applications more than six S-P filters
can be combined.
Technical Data
Type No.
Number of resonators
Frequency range
Insertion loss
VSWR
Impedance
Input power
Effect of temperature
Temperature range
Material
Connectors
Weight
Packing size
Dimensions (w x h x d)
Attached hardware
78
K 64 41 23
K 64 41 24
4
6
146 … 174 MHz
1.0 ±0.2 dB
1.5 dB ±0.3 dB
< 1.4 (at operating frequency)
50 Ω
< 200 W
< 0.4 kHz / °C
–30 … +60 °C
Outer conductor: Aluminium
Inner conductor: Brass, silver-plated
N female
36.5 kg
54.5 kg
4x 210 mm x 865 mm x 210 mm
6x 210 mm x 865 mm x 210 mm
190 mm x max. 770 mm x 760 mm 190 mm x max. 770 mm x 1140 mm
(with tuning rods)
(with tuning rods)
S-P filter with interconnecting cables,
2 brackets and 2 straps for each resonator
Duplexer
146 … 174 MHz
Typical attenuation curves
Number of
resonators
Curve
Insertion
loss
Type No.
4
6
1
2
1.0 dB
1.5 dB
K 64 41 23
K 64 41 24
Stop band
attenuation/dB
120
110
100
2
90
80
1
70
60
0.2
0.6
1.0
1.4
1.8
Frequency spacing between pass band frequency
and stop band frequency/MHz
79
Duplexer
380 … 470 MHz
The duplexer is suited to combine one
transmitter with one or more receivers to
a common antenna.
Design and construction:
The duplexer consists of a 4-cavity S-P
filter (Stop-Pass filter) for the low band
and a 4-cavity S-P filter for the high band.
The S-P filters are designed to allow the
transmitter to operate in the low band or
in the high band.
Tuning:
The duplexer is tuneable within the specified frequency range.
When ordering please note the desired low
and high band frequencies.
The duplexer can be tuned on site using
the instructions available on request.
Technical Data
791 255
Type No.
Number of resonators
Frequency range
Duplex spacing
Switching bandwidth
Insertion loss 1)
Isolation 2)
VSWR
Impedance
Input power 3)
Temperature range
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
4+4
380 … 470 MHz
10 MHz
< 1.0 MHz
< 1.8 dB
> 65 dB
2)
80
< 1.0 MHz
< 2.3 dB
> 60 dB
< 1.4
50 Ω
< 15 W
Low band → Antenna / High band → Antenna
Low band ↔ High band
3)
Low band or High band
1)
8 MHz
< 0.5 MHz
< 1.6 dB
> 65 dB
< 10 W
–20 … +50 °C
SMB male, angled
Brass, silver-plated
With 3 screws (max. 3 mm diameter)
0.25 kg
150 mm x 30 mm x 120 mm
144 mm x 20 mm x 114 mm (with connectors)
< 0.5 MHz
< 2.0 dB
> 65 dB
Duplexer
380 … 470 MHz
Typical attenuation curves
Tuning examples:
Duplex spacing: 10 MHz
Attenuation/dB
Diagram I:
0
10
Detail see
diagram II
20
Detail see
diagram III
30
40
50
60
70
80
90
100
425
427
429
431
433
435
437
439
441
443
445
Frequency/MHz
Attenuation/dB
Diagram II: (Low band → Antenna)
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
425
426
427
428
429
430
431
432
433
434
435
Frequency/MHz
Attenuation/dB
Diagram III: (High band → Antenna)
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
435
436
437
438
439
440
441
442
443
444
445
Frequency/MHz
81
Duplexer
380 … 470 MHz
The duplexer is suited to combine one
transmitter with one or more receivers to
a common antenna.
Design and construction:
The duplexer consists of a 3-cavity or
4-cavity S-P filter (Stop-Pass filter) for the
low band and a 3-cavity or 4-cavity S-P
filter for the high band. The two S-P filters
are interconnected to a common antenna
output using cables of defined electrical
lengths.
719 785
The S-P filters are designed to allow the
transmitter to operate in the low band as
well as the high band.
Tuning:
The duplexer, because of its special construction can only be tuned at the factory.
Special requests like other duplex spacings, switching bandwidths or attenuation
values can be taken into account.
When ordering please specify the desired
high and low band frequencies.
718 290
Technical Data
Type No.
Number of resonators
Frequency range
Duplex spacing
Switching bandwidth
Insertion loss 1)
Isolation 2)
VSWR
Impedance
Input power 3)
719 785
4+4
380 … 470 MHz
5 MHz
10 MHz
5 MHz
10 MHz
0.2 MHz 0.5 MHz 0.5 MHz 1.0 MHz 2.0 MHz 0.5 MHz * 1.0 MHz * 2.0 MHz 3.0 MHz 4.0 MHz 5.0 MHz *
< 1.2 dB < 1.5 dB < 0.7 dB < 0.8 dB < 1.0 dB < 1.6 dB < 1.8 dB < 1.0 dB < 1.2 dB < 1.5 dB < 1.8 dB
> 65 dB > 60 dB > 75 dB > 70 dB > 65 dB > 70 dB > 60 dB > 80 dB > 75 dB > 70 dB > 60 dB
< 1.4
50 Ω
< 100 W (–30 … +55 °C) / < 50 W (+55 … +70 °C)
* < 50 W (–30 … +55 °C) / < 30 W (+55 … +70 °C)
Temperature range
–30 … +70 °C
Connectors
N female
Material
S-P resonators: Aluminium / brass
Cable
RG 223/U
Installation
With 4 screws (M4)
Weight
1.9 kg
2.5 kg
Packing size
280 mm x 60 mm x 250 mm
410 mm x 85 mm x 205 mm
Dimensions (w x h x d)
230 mm x 50 mm x 170 mm
300 mm x 50 mm x 170 mm
(with connectors)
(with connectors)
1)
2)
3)
3+3
718 290
Low band ↔ Antenna / High band ↔ Antenna
Low band ↔ High band
Low band or High band
82
Duplexer
380 … 470 MHz
Typical attenuation curves
Tuning examples:
Duplexer 719 785
Duplexer 718 290
Duplex spacing : 5 MHz
Switching bandwidth: 0.5 MHz
Duplex spacing : 5 MHz
Switching bandwidth: 1.0 MHz
A
Attenuation/dB
Attenuation/dB
0
B
10
20
30
0
20
30
40
40
50
50
60
60
70
70
80
80
90
90
100
100
425
B
A
10
427
429
431
433
435
437
439
441
443
425
445
427
429
431
433
435
Frequency/MHz
Duplex spacing : 10 MHz
Switching bandwidth: 1.0 MHz
Attenuation/dB
Attenuation/dB
10
B
20
30
445
443
445
443
445
B
30
50
60
60
70
70
80
80
90
90
100
427
429
431
433
435
437
439
441
443
445
425
427
429
431
433
435
Frequency/MHz
Attenuation/dB
10
439
441
Duplex spacing : 10 MHz
Switching bandwidth: 4.0 MHz
0
A
437
Frequency/MHz
Duplex spacing : 10 MHz
Switching bandwidth: 2.0 MHz
Attenuation/dB
443
20
50
100
A
10
40
B
20
30
0
A
B
10
20
30
40
40
50
50
60
60
70
70
80
80
90
90
100
100
425
441
0
40
425
439
Duplex spacing : 10 MHz
Switching bandwidth: 2.0 MHz
0
A
437
Frequency/MHz
427
429
431
433
435
437
439
441
443
445
425
427
Frequency/MHz
429
431
433
435
437
439
441
Frequency/MHz
A: Low band ↔ Antenna
B: High band ↔ Antenna
83
Duplexer
380 … 470 MHz
The duplexer is suited to combine one or
more transmitters with one or more receivers to a common antenna.
It can also be used to combine two transmitters to a common antenna.
Design and construction:
The duplexer consists of a 3-cavity or
4-cavity S-P filter (Stop-Pass filter) for the
low band and a 3-cavity or 4-cavity S-P
filter for the high band. The two S-P filters
are interconnected to a common antenna
output using cables of defined electrical
lengths.
The S-P filters are designed to allow the
transmitter to be operated in the low band
or the high band.
718 313
Tuning:
The duplexer, because of its special construction can only be tuned at the factory.
Special requests like other duplex spacings, switching bandwidths or attenuation
values can be taken into account.
When ordering please specify the desired
high and low band frequencies.
719 237
Technical Data
Type No.
Number of resonators
Frequency range
Duplex spacing
Switching bandwidth
Insertion loss 1)
Isolation 2)
VSWR
Impedance
Input power 3)
718 313
719 237
4+4
380 … 470 MHz
5 MHz
10 MHz
5 MHz
10 MHz
0.2 MHz 0.5 MHz 0.5 MHz 1.0 MHz 2.0 MHz 0.5 MHz * 1.0 MHz * 2.0 MHz 3.0 MHz 4.0 MHz 5.0 MHz *
< 1.2 dB < 1.5 dB < 0.7 dB < 0.8 dB < 1.0 dB < 1.6 dB < 1.8 dB < 1.0 dB < 1.2 dB < 1.5 dB < 1.8 dB
> 65 dB > 60 dB > 75 dB > 70 dB > 65 dB > 70 dB > 60 dB > 80 dB > 75 dB > 70 dB > 60 dB
< 1.4
50 Ω
< 100 W (–30 … +55 °C) / < 50 W (+55 … +70 °C)
* < 50 W (–30 … +55 °C) / < 30 W (+55 … +70 °C)
Temperature range
–30 … +70 °C
Connectors
N female, silver-plated
Material
S-P resonators: Brass, silver-plated
Cable
RG 223/U
Installation
With 4 screws (M5)
Weight
2.9 kg
3.8 kg
Packing size
410 mm x 85 mm x 205 mm
410 mm x 85 mm x 205 mm
Dimensions (w x h x d)
270 mm x 58 mm x 190 mm
350 mm x 58 mm x 190 mm
(with connectors)
(with connectors)
1)
2)
3)
3+3
Low band ↔ Antenna / High band ↔ Antenna
Low band ↔ High band
Input power of the low band or the high band or total sum of the input power of the low band and the high band.
84
Duplexer
380 … 470 MHz
Typical attenuation curves
Duplexer 718 313
Duplexer 719 237
Duplex spacing : 5 MHz
Switching bandwidth: 0.5 MHz
Duplex spacing : 5 MHz
Switching bandwidth: 1.0 MHz
0
A
Attenuation/dB
Attenuation/dB
Tuning examples:
B
10
20
30
0
A
10
20
30
40
40
50
50
60
60
70
70
80
80
90
90
100
425
100
425
427
429
431
433
435
437
439
441
443
445
B
427
429
431
433
435
0
10
B
20
30
A
10
443
445
443
445
443
445
B
20
30
40
50
50
60
60
70
70
80
80
90
90
100
100
427
429
431
433
435
437
439
441
443
425
445
427
429
431
433
435
Frequency/MHz
Attenuation/dB
10
B
20
30
A
10
30
40
50
60
60
70
70
80
80
90
90
100
425
100
431
433
435
437
439
441
443
445
B
20
50
429
441
0
40
427
439
Duplex spacing : 10 MHz
Switching bandwidth: 4.0 MHz
0
A
437
Frequency/MHz
Duplex spacing : 10 MHz
Switching bandwidth: 2.0 MHz
Attenuation/dB
441
0
40
425
439
Duplex spacing : 10 MHz
Switching bandwidth: 2..0 MHz
Attenuation/dB
Attenuation/dB
Duplex spacing : 10 MHz
Switching bandwidth: 1.0 MHz
A
437
Frequency/MHz
Frequency/MHz
425
427
429
431
433
435
437
439
441
Frequency/MHz
Frequency/MHz
A: Low band ↔ Antenna
B: High band ↔ Antenna
85
Duplexer
380 – 385 / 390 – 395 MHz (TETRA, TETRAPOL)
382 – 387 / 392 – 397 MHz (TETRA, TETRAPOL)
385 – 390 / 395 – 400 MHz (TETRA, TETRAPOL)
The Duplexer is designed to combine/split TETRA or TETRAPOL Tx and Rx signals onto/from one common
Tx/Rx antenna in order to save feeder cable and antenna costs.
• Suitable for indoor applications
• Built-in DC stop
• 19˝ drawers available as accessories
782 10371
782 10372
782 10373
782 10361
782 10362
782 10363
Low band
Antenna
High band
Low band
Antenna
High band
Technical Data
Type No.
7-16 female
N female
Pass band
Low band
High band
Insertion loss
Antenna → Low band
High band → Antenna
Isolation
Low band ↔ High band
VSWR
Impedance
Input power
Intermodulation products
Temperature range
Application
Special features
Mounting
Weight
Packing size
Dimensions (w x h x d)
86
782 10361
782 10371
782 10362
782 10372
782 10363
782 10373
380 – 385 MHz
390 – 395 MHz
382 – 387 MHz
392 – 397 MHz
385 – 390 MHz
395 – 400 MHz
< 0.8 dB (380 – 385 MHz)
< 0.8 dB (390 – 395 MHz)
< 0.8 dB (382 – 387 MHz)
< 0.8 dB (392 – 397 MHz)
< 0.8 dB (385 – 390 MHz)
< 0.8 dB (395 – 400 MHz)
> 65 dB (380 – 385 / 390 – 395 MHz)
< 1.25 (380 – 385 / 390 – 395 MHz)
> 65 dB (382 – 387 / 392 – 397 MHz) > 65 dB (385 – 390 / 395 – 400 MHz)
< 1.25 (382 – 387 / 392 – 397 MHz)
< 1.25 (385 – 390 / 395 – 400 MHz)
50 Ω
< 200 W (low band or high band)
< –150 dBc (3rd order; with 2 x 20 W)
–20 … +60 °C
Indoor
Built-in DC stop between all ports
With 4 screws (max. 4 mm diameter)
5.5 kg
409 x 378 x 152 mm
782 10361, 782 10362, 782 10363: 315 x 87.5 x 244.6 mm (including connectors and mounting feet)
782 10371, 782 10372, 782 10373: 315 x 86.5 x 250.2 mm (including connectors and mounting feet)
Duplexer
380 – 385 / 390 – 395 MHz (TETRA, TETRAPOL)
382 – 387 / 392 – 397 MHz (TETRA, TETRAPOL)
385 – 390 / 395 – 400 MHz (TETRA, TETRAPOL)
Accessories (order separately)
Type No.
782 10370
782 10380
19˝ drawer
19˝ drawer
Application
Suitable for duplexers 782 10361, 782 10362, 782 10363, 782 10371,
782 10372, 782 10373 to be mounted with connectors pointing
to front
to rear
Dimensions
19˝ drawer, 2 height units, plug-in depth max. 253 mm
Weight
Approx. 1 kg
Mounting note
Remove mounting feet from duplexer and reuse 4 of 8 screws (M3 x 8 countersunk screw)
for mounting the duplexer on the 19˝ drawer
Mounting example
Typical Attenuation Curves
782 10361 / 782 10371
782 10362 / 782 10372
Diagram I
Diagram I
10
20
390 – 395
380 – 385
30
0
10
20
382 – 387
Antenna → Low band
High band → Antenna
Attenuation/dB
0
Diagram I
Antenna → Low band
High band → Antenna
Attenuation/dB
392 – 397
30
10
20
385 – 390
40
40
50
50
60
60
60
70
70
70
80
80
80
90
90
90
100
375
100
377
100
380
387.5 390 392.5 395
397.5 400
379.5 382 384.5 387
Antenna → Low band
High band → Antenna
Attenuation/dB
0
0.5
1.0
380 – 385
399.5 402
390 – 395
1.5
0
0.5
1.0
382 – 387
Antenna → Low band
392 – 397
1.5
1.0
385 – 390
2.0
2.5
3.0
3.0
3.0
3.5
3.5
3.5
4.0
4.0
4.0
4.5
4.5
4.5
5.0
375
5.0
377
Frequency/MHz
389.5 392 394.5 397
399.5 402
Frequency/MHz
395 – 400
1.5
2.5
379.5 382 384.5 387
High band → Antenna
0.5
2.0
397.5 400
402.5 405
0
2.5
387.5 390 392.5 395
392.5 395 397.5 400
Diagram II
High band → Antenna
2.0
377.5 380 382.5 385
382.5 385 387.5 390
Frequency/MHz
Diagram II
Diagram II
Antenna → Low band
389.5 392 394.5 397
Frequency/MHz
Frequency/MHz
395 – 400
30
50
377.5 380 382.5 385
High band → Antenna
0
40
Attenuation/dB
Attenuation/dB
Antenna → Low band
Attenuation/dB
782 10363 / 782 10373
5.0
380
382.5 385 387.5 390
392.5 395 397.5 400
402.5 405
Frequency/MHz
87
Duplexer
410 – 415 / 420 – 425 MHz (TETRA, TETRAPOL)
415 – 420 / 425 – 430 MHz (TETRA, TETRAPOL)
The Duplexer is designed to combine/split TETRA or TETRAPOL Tx and Rx signals onto/from one common
Tx/Rx antenna in order to save feeder cable and antenna costs.
• Suitable for indoor applications
• Built-in DC stop
• 19˝ drawers available as accessories
782 10374
782 10375
782 10364
782 10365
Low band
Antenna
Low band
High band
Antenna
High band
Technical Data
Type No.
7-16 female
N female
Pass band
Low band
High band
Insertion loss
Antenna → Low band
High band → Antenna
Isolation
Low band ↔ High band
VSWR
Impedance
Input power
Intermodulation products
Temperature range
Application
Special features
Mounting
Weight
Packing size
Dimensions (w x h x d)
88
782 10364
782 10374
782 10365
782 10375
410 – 415 MHz
420 – 425 MHz
415 – 420 MHz
425 – 430 MHz
< 0.8 dB (410 – 415 MHz)
< 0.8 dB (420 – 425 MHz)
< 0.8 dB (415 – 420 MHz)
< 0.8 dB (425 – 430 MHz)
> 65 dB (410 – 415 / 420 – 425 MHz)
< 1.25 (410 – 415 / 420 – 425 MHz)
> 65 dB (415 – 420 / 425 – 430 MHz)
< 1.25 (415 – 420 / 425 – 430 MHz)
50 Ω
< 200 W (low band or high band)
< –150 dBc (3rd order; with 2 x 20 W)
–20 … +60 °C
Indoor
Built-in DC stop between all ports
With 4 screws (max. 4 mm diameter)
5.5 kg
409 x 378 x 152 mm
782 10364 / 782 10365: 315 x 87.5 x 244.6 mm (including connectors and mounting feet)
782 10374 / 782 10375: 315 x 86.5 x 250.2 mm (including connectors and mounting feet)
Duplexer
410 – 415 / 420 – 425 MHz (TETRA, TETRAPOL)
415 – 420 / 425 – 430 MHz (TETRA, TETRAPOL)
Accessories (order separately)
Type No.
782 10370
782 10380
19˝ drawer
19˝ drawer
Application
Suitable for duplexers 782 10364, 782 10365, 782 10374, 782 10375 to be mounted with connectors pointing
to front
to rear
Dimensions
19˝ drawer, 2 height units, plug-in depth max. 253 mm
Weight
Approx. 1 kg
Mounting note
Remove mounting feet from duplexer and reuse 4 of 8 screws (M3 x 8 countersunk screw)
for mounting the duplexer on the 19˝ drawer
Mounting example
Typical Attenuation Curves
782 10364 / 782 10374
782 10365 / 782 10375
Diagram I
Diagram I
Antenna → Low band
High band → Antenna
Attenuation/dB
Attenuation/dB
Antenna → Low band
0
10
20
420 – 425
410 – 415
30
10
20
415 – 420
40
50
50
60
60
70
70
80
80
90
90
100
405
100
410
417.5 420 422.5 425
427.5 430
412.5 415 417.5 420
Antenna → Low band
High band → Antenna
0
Attenuation/dB
Attenuation/dB
Antenna → Low band
0.5
1.0
420 – 425
1.5
0.5
1.0
415 – 420
2.5
2.5
3.0
3.0
3.5
3.5
4.0
4.0
4.5
4.5
427.5 430
Frequency/MHz
425 – 430
1.5
2.0
417.5 420 422.5 425
High band → Antenna
0
2.0
407.5 410 412.5 415
432.5 435
Diagram II
Diagram II
5.0
405
422.5 425 427.5 430
Frequency/MHz
Frequency/MHz
410 – 415
425 – 430
30
40
407.5 410 412.5 415
High band → Antenna
0
5.0
410
412.5 415 417.5 420
422.5 425 427.5 430
432.5 435
Frequency/MHz
89
Duplexer
450 – 455 / 460 – 465 MHz (TETRA, TETRAPOL)
455 – 460 / 465 – 470 MHz (TETRA, TETRAPOL)
The Duplexer is designed to combine/split TETRA or TETRAPOL Tx and Rx signals onto/from one common
Tx/Rx antenna in order to save feeder cable and antenna costs.
• Suitable for indoor applications
• Built-in DC stop
• 19˝ drawers available as accessories
782 10376
782 10377
782 10366
782 10367
Low band
Antenna
Low band
High band
Antenna
High band
Technical Data
Type No.
7-16 female
N female
Pass band
Low band
High band
Insertion loss
Antenna → Low band
High band → Antenna
Isolation
Low band ↔ High band
VSWR
Impedance
Input power
Intermodulation products
Temperature range
Application
Special features
Mounting
Weight
Packing size
Dimensions (w x h x d)
90
782 10366
782 10376
782 10367
782 10377
450 – 455 MHz
460 – 465 MHz
455 – 460 MHz
465 – 470 MHz
< 0.8 dB (450 – 455 MHz)
< 0.8 dB (460 – 465 MHz)
< 0.8 dB (455 – 460 MHz)
< 0.8 dB (465 – 470 MHz)
> 65 dB (450 – 455 / 460 – 465 MHz)
< 1.25 (450 – 455 / 460 – 465 MHz)
> 65 dB (455 – 460 / 465 – 470 MHz)
< 1.25 (455 – 460 / 465 – 470 MHz)
50 Ω
< 200 W (low band or high band)
< –150 dBc (3rd order; with 2 x 20 W)
–20 … +60 °C
Indoor
Built-in DC stop between all ports
With 4 screws (max. 4 mm diameter)
5.5 kg
409 x 378 x 152 mm
782 10366 / 782 10367: 315 x 87.5 x 244.6 mm (including connectors and mounting feet)
782 10376 / 782 10377: 315 x 86.5 x 250.2 mm (including connectors and mounting feet)
Duplexer
450 – 455 / 460 – 465 MHz (TETRA, TETRAPOL)
455 – 460 / 465 – 470 MHz (TETRA, TETRAPOL)
Accessories (order separately)
Type No.
782 10370
782 10380
19˝ drawer
19˝ drawer
Application
Suitable for duplexers 782 10366, 782 10367, 782 10376, 782 10377 to be mounted with connectors pointing
to front
to rear
Dimensions
19˝ drawer, 2 height units, plug-in depth max. 253 mm
Weight
Approx. 1 kg
Mounting note
Remove mounting feet from duplexer and reuse 4 of 8 screws (M3 x 8 countersunk screw)
for mounting the duplexer on the 19˝ drawer
Mounting example
Typical Attenuation Curves
782 10366 / 782 10376
782 10367 / 782 10377
Diagram I
Diagram I
0
10
20
450 – 455
Antenna → Low band
High band → Antenna
Attenuation/dB
Attenuation/dB
Antenna → Low band
460 – 465
30
10
20
455 – 460
40
50
50
60
60
70
70
80
80
90
90
100
445
100
450
457.5 460 462.5 465
467.5 470
452.5 455 457.5 460
Attenuation/dB
Attenuation/dB
Antenna → Low band
High band → Antenna
0
0.5
1.0
460 – 465
1.5
0.5
1.0
455 – 460
2.0
2.5
3.0
3.0
3.5
3.5
4.0
4.0
4.5
4.5
457.5 460 462.5 465
467.5 470
Frequency/MHz
465 – 470
1.5
2.5
447.5 450 452.5 455
High band → Antenna
0
2.0
5.0
445
472.5 475
Diagram II
Diagram II
450 – 455
462.5 465 467.5 470
Frequency/MHz
Frequency/MHz
Antenna → Low band
465 – 470
30
40
447.5 450 452.5 455
High band → Antenna
0
5.0
450
452.5 455 457.5 460
462.5 465 467.5 470
472.5 475
Frequency/MHz
91
Duplexer
380 … 470 MHz
The duplexer is suited to combine transmitters and
receivers (or transmitter and transmitter or receiver
and receiver) to a common antenna.
It can be used :
– for very small frequency spacing,
– to obtain very high stop band attenuation (more
than 100 dB) at very low insertion loss.
Design and construction:
The duplexer consists of four or six S-P filters
K 65 21 26 1 and interconnecting cables of defined
length, depending on the operating frequencies.
The S-P filters consist of temperature stabilized λ/4
coaxial resonators. Using a specially temperature
stabilized coupling a high stop band attenuation
can be adjusted very close to the pass band frequency.
Tuning:
The stop band attenuation is dependent on the
frequency spacing and the number of S-P filters.
The stop band attenuation for four or six S-P filters
can be read from the diagram.
The duplexer is tuned to the desired pass band
frequencies at the factory. When ordering please
specify the pass band frequencies.
The duplexer can also be tuned on site using the
supplied instructions.
Installation:
The duplexer can be used as a stand alone unit or
wall mounted using the supplied brackets. The individual S-P filters can be connected to each other
using the supplied straps.
similar to K 65 41 25
Custom versions:
For special applications more than six S-P filters
can be combined.
Technical Data
Type No.
Number of resonators
Frequency range
Insertion loss
VSWR
Impedance
Input power
Effect of temperature
Temperature range
Material
Connectors
Weight
Packing size
Dimensions (w x h x d)
Attached hardware
92
K 65 41 25
K 65 41 26
4
6
380 … 470 MHz
1.0 dB
1.5 dB
< 1.4
50 Ω
< 200 W
< 1.5 kHz / °C
–30 … +60 °C
Outer conductor: Aluminium
Inner conductor: Copper, silver-plated
N female
20.5 kg
30.5 kg
420 mm x 490 mm x 420 mm 420 mm x 490 mm x 630 mm
190 mm x max. 350 mm x 760 mm 190 mm x max. 350 mm x 1140 mm
(with tuning rods)
(with tuning rods)
S-P filter with interconnecting cables,
2 brackets and 2 straps for each resonator
Duplexer
380 … 470 MHz
Typical attenuation curves
Tuning examples:
Number of
resonators
Curve
Insertion
loss
Type No.
4
6
1
2
1.0 dB
1.5 dB
K 65 41 25
K 65 41 26
120
Stop band
attenuation/dB
110
100
90
2
80
70
1
60
0.5
1.0
1.5
2.0
2.5
Frequency spacing between pass band frequency and
stop band frequency/MHz
93
94
Multiband Combiners and
Transmitter Combiners
Multiband Combiners and
Transmitter Combiners
Filter Transmitter Combiners
Hybrid Transmitter Combiners
Multiband Combiners
95
96
Summary of Articles
Multiband Combiners and Transmitter Combiners:
Description
Type No.
Frequency range
... tunable bandwidth
– fixed bandwidth (not tunable)
Max. input power
Page
Filter Transmitter Combiner
792 100
146 ... 174 MHz
100 W
98
Filter Transmitter Combiner
792 101
146 ... 174 MHz
100 W
98
Filter Transmitter Combiner
792 102
146 ... 174 MHz
100 W
98
Filter Transmitter Combiner
793 205
146 ... 174 MHz
100 W
98
Filter Transmitter Combiner
793 206
146 ... 174 MHz
100 W
98
Filter Transmitter Combiner
790 044
420 ... 430 MHz
50 W
99
Filter Transmitter Combiner
790 594
460 ... 470 MHz
100 W
99
Hybrid Transmitter Combiner, 2 inputs
793 297
74 – 87 MHz
25 W
100
Hybrid Transmitter Combiner, 2 inputs
793 299
74 – 87 MHz
50 W
100
Hybrid Transmitter Combiner, 3 inputs
793 306
74 – 87 MHz
50 W
100
Hybrid Transmitter Combiner, 4 inputs
793 308
74 – 87 MHz
50 W
100
Hybrid Transmitter Combiner, 2 inputs
792 059
146 – 174 MHz
25 W
102
Hybrid Transmitter Combiner, 2 inputs
792 061
146 – 174 MHz
100 W
102
Hybrid Transmitter Combiner, 3 inputs
792 064
146 – 174 MHz
100 W
102
Hybrid Transmitter Combiner, 4 inputs
792 067
146 – 174 MHz
100 W
102
Hybrid Transmitter Combiner, 2 inputs
784 10168
380 – 430 MHz
25 W
104
Hybrid Transmitter Combiner, 2 inputs
784 10167
380 – 430 MHz
100 W
104
Hybrid Transmitter Combiner, 3 inputs
784 10166
380 – 430 MHz
100 W
104
Hybrid Transmitter Combiner, 4 inputs
784 10140
380 – 430 MHz
100 W
104
Hybrid Transmitter Combiner, 5 inputs
784 10165
380 – 430 MHz
100 W
104
Hybrid Transmitter Combiner, 2 inputs
791 644
400 – 470 MHz
25 W
106
Hybrid Transmitter Combiner, 2 inputs
791 646
400 – 470 MHz
100 W
106
Hybrid Transmitter Combiner, 3 inputs
791 649
400 – 470 MHz
100 W
106
Hybrid Transmitter Combiner, 4 inputs
791 652
400 – 470 MHz
100 W
106
Hybrid Transmitter Combiner, 5 inputs
784 10063
400 – 470 MHz
100 W
106
Multiband Combiner
K 64 50 4
68 – 87.5 / 146 – 174 MHz
50 W
108
Multiband Combiner
719 035
68 – 87.5 / 146 – 174 MHz
50 W
108
Multiband Combiner
719 792
68 – 108 / 146 – 174 MHz
50 W
108
Multiband Combiner
718 500
68 – 87.5 / 146 – 174 / 400 – 470 MHz
25 W
108
Multiband Combiner
721 138
68 – 174 / 380 – 470 MHz
50 W
110
Multiband Combiner
723 013
68 – 174 / 380 – 470 MHz
50 W
110
Multiband Combiner
790 244
68 – 174 / 400 – 470 MHz
50 W
110
Multiband Combiner
790 957
68 – 174 / 400 – 470 MHz
50 W
110
Multiband Combiner
728 954
68 – 470 / 870 – 970 MHz
50 W
111
Multiband Combiner
791 463
50 W
111
Multiband Combiner
722 437
68 – 470 MHz / 870 – 970 MHz
500 W
111
Multiband Combiner
722 440
68 – 470 MHz / 870 – 970 MHz
500 W
111
Dual-Band Combiner
782 10369
380 – 400 / 410 – 430 MHz
200 W
112
Dual-Band Combiner
782 10460
50 – 470 / 806 – 2500 MHz
500 W
113
68 – 470 / 870 – 970 MHz
97
Filter Transmitter Combiner
with 2, 3, 4, 5 or 6 Inputs
146 … 174 MHz
This filter transmitter combiner allows several transmitters to be combined to one common antenna.
Design and construction:
Each filter transmitter combiner consists
of one 1-cavity band-pass filter and one
double circulator per channel. The filter
outputs are combined via defined cable
lengths to one common point (star-point).
Antenna
Tuning:
The band-passes must be tuned to the
individual operating channels concerned.
This tuning process can either be performed at our factory (in this case, please
specify the relevant operating channels
when ordering) or it can be carried out
on site.
793 205
BP
↑
Tx1 ... Tx4
band-pass filter
circulator
transmitter 1 ... transmitter 4
Filter Transmitter Combiner 792 102
Technical Data
Type No.
Frequency range
Number of inputs
Frequency spacing
Insertion loss at f0
Isolation Tx – Tx
VSWR
Impedance
Input power
Temperature range
Connectors
Material band-pass filter
Colour
Packing size
Dimensions (w x h)
Plug-in depth
Weight
*hu = hight unit
98
792 100
2
190 mm
33 kg
792 101
792 102
793 205
146 ... 174 MHz
4
5
> 300 kHz
< 3.5 dB
> 60 dB
< 1.25 (at operating frequency)
50 Ω
100 W of each input
0 … +50 °C
N female
Outer conductor: Aluminium
Inner conductor: Brass, silver-plated
Front panel: Grey (RAL 7032)
620 mm x 950 mm x 820 mm
19˝ drawer, 18 hu* (800 mm)
380 mm
380 mm
570 mm
46 kg
62 kg
83 kg
3
793 206
6
570 mm
101 kg
Filter Transmitter Combiner
420 … 430 MHz
460 ... 470 MHz
The 4-channel Transmitter Combiner is suitable for
combining up to 4 transmitters to a single antenna
output.
•
4 x 1-cavity high Q band-pass filters, combined in one
compact unit
•
4 x double isolators, each with one internal low power
50-Ω load
•
4 x high power 50-Ω loads with integrated detectors for
reflected Tx signals
•
Tuning can be achieved with a Network Analyzer or with a
Voltmeter by using the DC voltage signals supplied at the
detector outputs
•
•
Tx1
Tx2
Antenna
Tx3
Self-locking tuning screws
Tx4
Expansion of up to 16 channels is possible by interconnecting several 4-channel combiners with suitable starpoint
cables
790 044
Technical Data
Type No.
Frequency range
Number of channels
Isolators per channel
Channel spacing
Insertion loss Tx → Antenna
Channel spacing
With 50 W input power
With 100 W input power
Isolation Tx ↔ Tx
VSWR at Tx inputs
Impedance
Input power per channel
Power rating of the loads
Temperature range
Connectors
Tx inputs
Antenna
Detector outputs (DC)
Material
790 044
790 594
420 … 430 MHz
460 ... 470 MHz
4
2
> 150 kHz
150 / 200 / 250 kHz
< 4.3 / < 3.9 / < 3.6 dB
< 4.5 / < 4.1 / < 3.8 dB
> 60 dB
< 1.3
50 Ω
< 100 W
< 60 W
0 … +50 °C
N female
Colour
Weight
Packing size
Dimensions (w x h x d)
N female
SMC male
Band-pass filters: Copper / brass
19˝ drawer: Aluminium
Grey (RAL 7032)
Approx. 22.5 kg
565 mm x 435 mm x 380 mm
19˝ drawer, 8 height units, plug-in depth: 370 mm
Expansion to ...
8-channel transmitter combiner
12-channel transmitter combiner
150 / 200 / 250 kHz
< 4.7 / < 4.3 / < 4.0 dB
< 4.9 / < 4.5 / < 4.2 dB
150 / 200 / 250 kHz
< 5.5 / < 5.1 / < 4.8 dB
< 5.7 / < 5.3 / < 5.0 dB
Insertion loss
Channel spacing
With 50 W input power
With 100 W input power
7-16 female
BP
↑
Tx1 ... Tx4
DC
Band-pass filter
Circulator
Transmitter inputs 1 ... 4
Detector outputs (DC voltage)
16-channel transmitter combiner
150 / 200 / 250 kHz
< 5.7 / < 5.3 / < 5.0 dB
< 5.9 / < 5.5 / < 5.2 dB
99
Hybrid Transmitter Combiner
74 – 87 MHz
The hybrid transmitter combiner allows two
or several transmitters to be combined to a
common output.
Special features:
– very small spacing of the transmitting
frequencies, down to adjacent channel
spacing,
– variable transmitter frequencies,
– small dimensions.
Design and construction:
The hybrid transmitter combiner has two,
three or four inputs and one output.
For combining transmitters a hybrid ring
junction or a decoupled power splitter is
used as hybrid, depending on the number
of inputs. In every transmitting path a wide
band dual circulator is inserted, which
causes very high isolation. This effectively
suppresses intermodulation products. The
absorbers are dimensioned for a possible
total reflection occurring at the output.
793 297
Custom versions:
Custom versions are available on request:
– with single circulator instead of dual
circulator, if lower isolation is sufficient,
– with a band-pass filter at the output,
– for higher power.
793 308
Technical Data
Type No.
Inputs
793 297
2
793 299
2
793 306
3
793 308
4
Frequency range
Min. frequency spacing
Isolation
Impedance
VSWR
Connectors
Colour
* hu = height unit
100
Insertion loss
<
<
<
<
4.9
4.9
7.2
8.4
dB
dB
dB
dB
Dimensions
19˝ drawer
height
plug-in depth
1
4
4
4
hu*
hu*
hu*
hu*
=
=
=
=
45
177
177
177
mm
mm
mm
mm
Input power
of each input
350 mm
350 mm
350 mm
350 mm
74 – 87 MHz
0 MHz
> 60 dB
50 Ω
< 1.25
N female
Front panel: Grey (RAL 7032)
25
50
50
50
W
W
W
W
Packing size
535
535
535
535
mm
mm
mm
mm
x
x
x
x
120
260
260
260
mm
mm
mm
mm
x
x
x
x
435
490
490
490
mm
mm
mm
mm
Hybrid Transmitter Combiner
with 2, 3 or 4 Inputs
74 – 87 MHz
Output
793 297, 793 299
Hybrid
ring
junction
Input 1
Input 2
Output
793 306
Decoupled
power splitter
1:3
Input 1
Input 3
Input 2
Output
793 308
Decoupled
power splitter
1:4
Input 1
Input 2
Input 3
Input 4
101
Hybrid Transmitter Combiner
with 2, 3 or 4 Inputs
146 – 174 MHz
The hybrid transmitter combiner allows two
or several transmitters to be combined to a
common output.
Special features:
– very small spacing of the transmitting frequencies, down to adjacent channel spacing,
– variable transmitter frequencies,
– small dimensions.
Design and construction:
The hybrid transmitter combiner has two,
three or four inputs and one output. For
combining transmitters a hybrid ring junction or a decoupled power splitter is used
as hybrid, depending on the number of inputs. In every transmitting path a wide band
dual circulator is inserted, which causes
very high isolation. This effectively suppresses intermodulation products. The absorbers are dimensioned for a possible total
reflection occurring at the output.
792 059
792 067
Technical Data
Type No.
Inputs
792 059
2
792 061
2
792 064
3
792 067
4
Frequency range
Min. frequency spacing
Isolation
Impedance
VSWR
Connectors
Colour
* hu = height unit
102
Insertion loss
<
<
<
<
4.1
4.1
6.3
7.5
dB
dB
dB
dB
Dimensions
19” drawer
height
plug-in depth
1
4
4
4
hu*
hu*
hu*
hu*
=
=
=
=
45
177
177
177
mm
mm
mm
mm
Input power
of each input
350 mm
25
350 mm
100
350 mm
100
350 mm
100
146 – 174 MHz
0 MHz
> 65 dB
50 Ω
< 1.25
N female
Front panel: Grey (RAL 7032)
W
W
W
W
Packing size
535 mm x 120 mm x 435 mm
535 mm x 260 mm x 490 mm
540 mm x 192 mm x 520 mm
540 mm x 192 mm x 520 mm
Hybrid Transmitter Combiner
with 2, 3 or 4 Inputs
146 – 174 MHz
Output
792 059, 792 061
Hybrid
ring
junction
Input 1
Input 2
Output
792 064
Decoupled
power splitter
1:3
Input 1
Input 3
Input 2
Output
792 067
Decoupled
power splitter
1:4
Input 1
Input 2
Input 3
Input 4
103
Hybrid Transmitter Combiner
380 – 430 MHz
(TETRA, TETRAPOL)
The hybrid transmitter combiner allows two
or more transmitters to be combined to a
common output.
Special features:
– very small spacing of the transmitting
frequencies, down to adjacent channel
spacing,
– variable transmitter frequencies,
– small dimensions.
Design:
The hybrid transmitter combiner has two,
three, four or five inputs and one output.
For combining transmitters a hybrid ring
junction a decoupled power splitter is used
as hybrid or couplers depending on the
number of inputs. In every transmitting path
a wide band dual circulator is inserted,
which causes very high isolation. This
effectively suppresses intermodulation
products. The absorbers are dimensioned
for a possibly occurring total reflection at
the output.
784 10168
784 10140
Technical Data
Type No.
Inputs
784 10168
2
784 10167
2
784 10166
3
784 10140
4
784 10165
5
Frequency range
Min. frequency spacing
Isolation
Impedance
VSWR
Connectors
Colour
* hu = height unit
104
Insertion loss
<
<
<
<
<
3.9
3.9
6.3
7.3
8.3
dB
dB
dB
dB
dB
Dimensions
19˝ drawer
plug-in depth
height
1
4
4
4
4
hu*
hu*
hu*
hu*
hu*
=
=
=
=
=
44
177
177
177
177
Input power
per input
mm 300 mm
25
mm 350 mm
100
mm 350 mm
100
mm 350 mm
100
mm 350 mm
100
380 – 430 MHz
0 MHz
> 70 dB
50 Ω
< 1.2
N female
Front panel: Grey (RAL 7032)
W
W
W
W
W
Packing size
535
535
535
535
535
mm
mm
mm
mm
mm
x
x
x
x
x
120
260
260
260
260
mm
mm
mm
mm
mm
x
x
x
x
x
435
490
490
490
490
mm
mm
mm
mm
mm
Hybrid Transmitter Combiner
380 – 430 MHz
(TETRA, TETRAPOL)
Output
Output
Hybrid
ring
junction
Decoupled
power splitter
1:3
Input 1
Input 1
Input 2
784 10168
784 10167
Input 2
Input 3
784 10166
Output
Output
Decoupled
power splitter
1:4
Input 1
Input 2
Input 3
784 10140
Input 4
784 10165
105
Hybrid Transmitter Combiner
400 – 470 MHz
The hybrid transmitter combiner allows two
or more transmitters to be combined to a
common output.
Special features:
– very small spacing of the transmitting
frequencies, down to adjacent channel
spacing,
– variable transmitter frequencies,
– small dimensions.
Design:
The hybrid transmitter combiner has two,
three, four or five inputs and one output.
For combining transmitters a hybrid ring
junction a decoupled power splitter is used
as hybrid or couplers depending on the
number of inputs. In every transmitting path
a wide band dual circulator is inserted,
which causes very high isolation. This
effectively suppresses intermodulation
products. The absorbers are dimensioned
for a possibly occurring total reflection at
the output.
791 644
791 652
Technical Data
Type No.
Inputs
791 644
2
791 646
2
791 649
3
791 652
4
784 10063
5
Frequency range
Min. frequency spacing
Isolation
Impedance
VSWR
Connectors
Colour
* hu = height unit
106
Insertion loss
<
<
<
<
<
3.9
3.9
6.3
7.3
8.3
dB
dB
dB
dB
dB
Dimensions
19˝ drawer
plug-in depth
height
1
4
4
4
4
hu*
hu*
hu*
hu*
hu*
=
=
=
=
=
44
177
177
177
177
Input power
per input
mm 300 mm
25
mm 350 mm
100
mm 350 mm
100
mm 350 mm
100
mm 350 mm
100
400 – 470 MHz
0 MHz
> 70 dB
50 Ω
< 1.2
N female
Front panel: Grey (RAL 7032)
W
W
W
W
W
Packing size
535
535
535
535
535
mm
mm
mm
mm
mm
x
x
x
x
x
120
260
260
260
260
mm
mm
mm
mm
mm
x
x
x
x
x
435
490
490
490
490
mm
mm
mm
mm
mm
Hybrid Transmitter Combiner
400 – 470 MHz
Output
Output
Hybrid
ring
junction
Decoupled
power splitter
1:3
Input 1
Input 1
Input 2
791 644
791 646
Input 2
Input 3
791 649
Output
Output
Decoupled
power splitter
1:4
Input 1
Input 2
Input 3
791 652
Input 4
784 10063
107
Multiband Combiner
68 – 87.5 MHz / 146 – 174 MHz / 400 – 470 MHz
The multiband combiner allows several
transmitters or receivers of different frequency ranges to be combined to one
common antenna.
It can be used:
– to combine transmitters or receivers of
different frequency bands to a common
feeder cable, to a broad band antenna
or a broad band radiating cable,
– to separate a broad band signal to individual frequency bands.
K 64 50 4
Design and construction:
The multiband combiners consist of lowpass, high-pass or band-pass filters with
lumped L-C elements.
718 500
Technical Data
2-band combiner
Type No.
Frequency range
Band 1
Band 2
Band 3
Insertion loss
Band 1
Band 2
Band 3
Isolation
VSWR
Impedance
Input power
Temperature range
Connectors
Version
Mounting
Weight
Packing size by mm
Dimensions by mm (w x h x d)
108
3-band combiner
K 64 50 4 719 035
719 792
68 – 87.5 MHz
146 – 174 MHz
68 – 108 MHz
146 – 174 MHz
< 0.5 dB
< 0.5 dB
< 0.5 dB
< 0.5 dB
> 35 dB
< 1.4
50 Ω
< 50 W of each input
–20 … +50 °C
N female
Without
With
Weather protective case
With 2
To tubular masts,
screws
60 ... 320 mm dia.
with supplied
(max. 4 mm
diameter)
noncorrosive
clamp strap
1 kg
3 kg
190 x 95 x 100 300 x 200 x 200
175 x 70 x 80 210 x 160 x 160
(with connectors)
> 25 dB
< 1.4
50 Ω
< 50 W of each input
–20 … +50 °C
N female
718 500
68 – 87.5 MHz
146 – 174 MHz
400 – 470 MHz
<
<
<
>
1.0 dB
1.0 dB
1.0 dB
30 dB
< 1.4
50 Ω
< 25 W of each input
–20 … +50 °C
N female
Without
Weather protective case
With 2 screws
With 4 screws
(max. 4 mm diameter)
(max. 6 mm diameter)
1 kg
190 x 95 x 100
175 x 70 x 80
(with connectors)
1.8 kg
235 x 100 x 165
172 x 90 x 160
(with connectors)
Multiband Combiner
68 – 87.5 MHz / 146 – 174 MHz / 380 – 470 MHz
Antenna
68 – 87.5 MHz
Antenna
146 – 174 MHz
Multiband Combiner
719 035
(with weather protective case)
Feeder cable
Combiner
Combiner
68 – 87.5 MHz
Multiband Combiner
K 64 50 4
146 – 174 MHz
Example for the combining of 80 MHz and 160 MHz
tansmitters/receivers to a common feeder cable
Antenna
Feeder Cable
Multiband Combiner
722 437
Multiband
Combiner
721 138
870 – 970 MHz
400 – 470
380
470 MHz
MHz
Multiband
Combiner
K 64 50 4
68 – 87.5 MHz
146 – 176 MHz
Example for multiband combiners in cascade
109
Multiband Combiner
68 – 174 / 380 – 470 MHz
It can be used:
– to combine several transmitters and
receivers in two or three different frequency bands to a common feeder
cable, to a broad-band antenna, or to
a broad-band radiating cable,
– and, in the reverse operating mode, to
separate several transmission or receiving frequencies into two or three frequency bands.
Design and construction:
The multiband combiners consist of low
pass, high pass or band-pass filters with
lumped L-C elements.
The 2-range combiners can be delivered
with or without weather protective cases.
721 138
790 244
Technical Data
2-range combiner
721 138
Type No.
Frequency range
Band
Band
Insertion loss
Band
Band
Isolation
VSWR
Impedance
Input power
Temperature range
Connectors
790 244
790 957
1
2
68 – 174 MHz
380 – 470 MHz
68 – 174 MHz
400 – 470 MHz
1
2
< 0.5 dB
< 0.5 dB
> 35 dB
< 1.4
50 Ω
< 50 W of each input
–20 … +50 °C
N female, silver-plated
< 0.5 dB
< 0.5 dB
> 45 dB
< 1.25
50 Ω
< 50 W of each input
–20 … +50 °C
N female
Version
Mounting
Weight
Packing size
Dimensions (w x h x d)
110
723 013
Without
With
Without
With
Weather protective case
Weather protective case
With 2 screws
To tubular masts,
With 2 screws
To tubular masts,
(max. 4 mm diameter) 60 ... 320 mm diameter
(max. 4 mm diameter)
60 ... 320 mm diameter
with supplied nonwith supplied noncorrosive clamp strap
corrosive clamp strap
1 kg
3 kg
0.3 kg
0.7 kg
190 mm x 95 mm x 100 mm 300 mm x 200 mm x 200 mm 130 mm x 50 mm x 130 mm 240 mm x 160 mm x 130 mm
175 mm x 70 mm x 80 mm 210 mm x 160 mm x 160 mm 103 mm x 38 mm x 68 mm 210 mm x 100 mm x 130 mm
(including connectors)
(including connectors)
Multiband Combiner
68 – 470 / 870 – 970 MHz
The multiband combiners can be used:
– to combine several transmitters and receivers
in two different frequency bands to a common
feeder cable, to a broad-band antenna, or to a
broad-band radiating cable,
– and, in the reverse operating mode, to separate
several transmission or receiving frequencies
into two frequency bands.
Design and construction:
The multiband combiners 722 437 and 722 440
consists of a coaxial low-pass filter and a 3-cavity
band-pass filter with λ/4 resonators.
The multiband combiners 728 954 and 791 463
consist of a low-pass and high-pass filter in printed
circuit technology.
728 954
722 437
Technical Data
Type No.
Frequency range
Input 1
Input 2
Insertion loss
68 – 470 MHz
870 – 970 MHz
Isolation
VSWR
Impedance
Input power
68 – 470 MHz
870 – 970 MHz
Temperature range
Connectors
Version
Mounting
Weight
Packing size
Dimensions (w x h x d)
728 954
791 463
722 437
722 440
68 – 470 MHz
870 – 970 MHz
68 – 470 MHz
870 – 970 MHz
< 0.5 dB
< 0.5 dB
> 45 dB
< 1.2
50 Ω
< 0.5 dB
< 0.5 dB
> 38 dB
< 1.5
50 Ω
< 50 W
< 50 W
–20 … +70 °C
N female
< 500 W
< 300 W
–20 … +50 °C
7-16 female
Without
With
Without
With
Weather protective case
Weather protective case
With 4 screws
To tubular masts,
With 4 screws
With 4 screws
(max. 3 mm diameter)
60 ... 320 mm diameter
(max. 4 mm diameter)
(max. 12 mm diameter)
with supplied noncorrosive clamp strap
1.3 kg
3 kg
3 kg
20 kg
Approx.
Approx.
Approx.
Approx.
280 mm x 55 mm x 125 mm 540 mm x 120 mm x 260 mm 145 mm x 145 mm x 625 mm 970 mm x 240 mm x 410 mm
269 mm x 32 mm x 112 mm 400 mm x 60 mm x 172 mm 120 mm x 76 mm x 520 mm 793 mm x 218 mm x 380 mm
(including connectors)
(including connectors)
(including connectors)
(including connectors)
111
Dual-Band Combiner
•
•
•
•
•
380 – 400 MHz
410 – 430 MHz
TETRA / TETRAPOL
TETRA / TETRAPOL
Designed for co-siting purposes
Enables feeder sharing
Suitable for indoor applications
Built-in DC stop
19 ˝ drawer available on request
Low band
Antenna
High band
Calculated Attenuation Curves
Attenuation/dB
Diagram I
Port 1 ↔ Port 3
Port 2 ↔ Port 3
0
10
20
410 – 430
380 – 400
30
40
50
60
Technical Data
Pass band
Band 1
Band 2
Insertion loss
Port 1 ↔ Port 3
Port 2 ↔ Port 3
Isolation
Port 1 ↔ Port 2
VSWR
Impedance
Input power
Band 1
Band 2
Intermodulation products
Temperature range
Connectors
Application
Special features
Mounting
Weight
Packing size
Dimensions (w x h x d)
112
782 10369
80
90
380 – 400 MHz
410 – 430 MHz
100
355
365
375
385
395
405
415
425
435
445
455
Frequency/MHz
< 0.8 dB (380 – 400 MHz)
< 0.8 dB (410 – 430 MHz)
Diagram II
> 60 dB (380 – 400 MHz)
> 60 dB (410 – 430 MHz)
< 1.2 (380 – 400 / 410 – 430 MHz)
50 Ω
< 200 W
< 200 W
< –150 dBc (3rd order; with 2 x 20 W)
–20 ... +60 °C
7-16 female
Indoor
Built-in DC stop between all ports
With 4 screws (max. 4 mm diameter)
Approx. 6.2 kg
Approx. 320 mm x 260 mm x 200 mm
315 mm x 87.5 mm x 244.6 mm
(including connectors and mounting feet)
Port 1 ↔ Port 3
Attenuation/dB
Type No.
70
Port 2 ↔ Port 3
0
0.5
1.0
410 – 430
380 – 400
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
355
365
375
385
395
405
415
425
435
445
Frequency/MHz
455
Dual-Band Combiner
50 – 470 MHz
PMR / TETRA / TETRAPOL
806 – 2500 MHz
CDMA 800 / GSM 900 / GSM 1800 / UMTS / WLAN
• Designed for co-siting purposes
• Enables feeder sharing
• Can be used as a combiner near the BTS or in a
reciprocal function near the antenna
• Suitable for indoor or outdoor applications
• Wall or mast mounting
• Built-in lightning protection
• External DC stop available as an accessory
• Very low insertion loss
• High input power
Port 3
Port 1
Port 2
Typical Attenuation Curves
Diagram I
Port 2 ↔ Port 3
Attenuation/dB
Port 1 ↔ Port 3
Technical Data
Pass band
Band 1
Band 2
Insertion loss
Port 1 ↔ Port 3
Port 2 ↔ Port 3
Isolation
Port 1 ↔ Port 2
VSWR
Impedance
Input power
Band 1
Band 1
Intermodulation products
Temperature range
Connectors
Application
DC/AISG transparency
Port 1 ↔ Port 3
Port 2 ↔ Port 3
Lightning protection
Mounting
Weight
Dimensions (w x h x d)
10
20
806 – 960
50 – 470
30
1710 – 2500
40
782 10460
50
50 – 470 MHz
806 – 960 / 1710 – 2500 MHz
70
60
80
< 0.2 dB (50 – 470 MHz)
< 0.2 dB (806 – 960 / 1710 – 2500 MHz)
90
100
0
> 50 dB (50 – 470 / 806 – 2500 MHz)
< 1.25 (50 – 470 / 806 – 960 / 1710 – 2500 MHz)
50 Ω
< 500 W
< 500 W
< –160 dBc (2nd/3rd order; with 2 x 20 W)
–55 ... +60 °C
7-16 female
Indoor or outdoor (IP 66)
By-pass (max. 2500 mA)
Stop
3 kA, 10/350 µs pulse
Wall mounting: With 4 screws (max. 8 mm diameter)
Mast mounting: With additional clamp set
Approx. 2.9 kg
Approx. 125 x 350 x 64 mm
(including mounting brackets)
250
500
750
1000 1250 1500 1750 2000 2250 2500
Frequency/MHz
Diagram II
Port 2 ↔ Port 3
Port 1 ↔ Port 3
Attenuation/dB
Type No.
0
0
0.1
0.2
50 – 470
0.3
806 – 960
1710 – 2500
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
250
500
750
1000 1250 1500 1750 2000 2250 2500
Frequency/MHz
113
114
3-dB Couplers
4.7-dB, 6-dB, 7-dB, 10-dB Couplers
Hybrid Ring Junctions
Decoupled Power Splitters
Circulators
DC-Stops
Attenuators
50-Ω Loads
115
System Components
System Components
Summary of Articles
System Components:
Description
Type No.
3-dB Coupler
K 62 70 41
3-dB Coupler
K 62 70 47
4.7-dB Coupler
Max. input power
Page
68 – 108 MHz
1000 W
118
68 – 108 MHz
1000 W
118
720 938
68 – 108 MHz
1000 W
119
4.7-dB Coupler
793 097
68 – 108 MHz
1000 W
119
6-dB Coupler
793 098
68 – 108 MHz
1000 W
119
6-dB Coupler
793 099
68 – 108 MHz
1000 W
119
7-dB Coupler
793 100
68 – 108 MHz
1000 W
119
7-dB Coupler
793 101
68 – 108 MHz
1000 W
119
10-dB Coupler
720 296
68 – 108 MHz
1000 W
119
10-dB Coupler
721 000
68 – 108 MHz
1000 W
119
Hybrid Ring Junction
K 62 73 41
68 – 87.5 MHz
100 W
120
Decoupled Power Splitter 1:3
724 346
68 – 87.5 MHz
100 W
121
Decoupled Power Splitter 1:4
725 870
68 – 87.5 MHz
100 W
121
Circulator
793 276
68 – 88 MHz
50 W
122
DC-Stop
721 062
68 – 87.5 / 146 – 174 / 380 – 470 MHz
10 W
123
3-dB Coupler
K 62 70 21
140 – 180 MHz
800 W
124
3-dB Coupler
K 62 70 27
140 – 180 MHz
800 W
124
4.7-dB Coupler
717 401
146 – 174 MHz
800 W
125
4.7-dB Coupler
793 102
146 – 174 MHz
800 W
125
6-dB Coupler
721 060
146 – 174 MHz
800 W
125
6-dB Coupler
793 103
146 – 174 MHz
800 W
125
7-dB Coupler
719 090
146 – 174 MHz
800 W
125
7-dB Coupler
793 104
146 – 174 MHz
800 W
125
10-dB Coupler
720 298
146 – 174 MHz
800 W
125
10-dB Coupler
722 675
146 – 174 MHz
800 W
125
Hybrid Ring Junction
K 62 73 21
146 – 174 MHz
100 W
126
Decoupled Power Splitter 1:3
724 347
146 – 174 MHz
100 W
127
Decoupled Power Splitter 1:4
725 234
146 – 174 MHz
100 W
127
Circulator
793 277
146 – 174 MHz
100 W
128
Circulator
780 060
146 – 174 MHz
100 W
129
3-dB Coupler
K 63 70 21
340 – 512 MHz
500 W
130
3-dB Coupler
K 63 70 27
340 – 512 MHz
500 W
130
4.7-dB Coupler
719 782
380 – 470 MHz
500 W
131
4.7-dB Coupler
722 488
380 – 470 MHz
500 W
131
6-dB Coupler
792 777
380 – 470 MHz
500 W
131
6-dB Coupler
790 589
380 – 470 MHz
500 W
131
7-dB Coupler
792 331
380 – 470 MHz
500 W
131
7-dB Coupler
790 590
380 – 470 MHz
500 W
131
10-dB Coupler
720 297
380 – 470 MHz
500 W
131
10-dB Coupler
720 942
380 – 470 MHz
500 W
131
Hybrid Ring Junction, TETRA, TETRAPOL
730 092
380 – 430 MHz
100 W
132
Hybrid Ring Junction
K 63 73 21 1
400 – 470 MHz
100 W
133
Decoupled Power Splitter 1 : 3
782 10231
380 – 430 MHz
100 W
134
Decoupled Power Splitter 1 : 4
782 10189
380 – 430 MHz
100 W
134
Decoupled Power Splitter 1 : 3
724 348
400 – 470 MHz
100 W
135
Decoupled Power Splitter 1 : 4
725 871
400 – 470 MHz
100 W
135
Circulator
784 10175
380 – 430 MHz
200 W
136
Circulator
790 215
400 – 470 MHz
100 W
136
Circulator
791 630
400 – 470 MHz
100 W
137
116
Frequency range
... tunable bandwidth
– fixed bandwidth (not tunable)
Summary of Articles
System Components:
Description
Type No.
Frequency range
... tunable bandwidth
– fixed bandwidth (not tunable)
Attenuation
Max. input power
Page
Attenuator
784 10235
0 – 4000 MHz
3 dB
2W
138
Attenuator
784 10236
0 – 4000 MHz
6 dB
2W
138
Attenuator
784 10237
0 – 4000 MHz
10 dB
2W
138
Attenuator
784 10238
0 – 4000 MHz
20 dB
2W
138
Attenuator
791 918
0 – 4000 MHz
3 dB
15 W
139
Attenuator
791 919
0 – 4000 MHz
6 dB
12 W
139
Attenuator
791 920
0 – 4000 MHz
10 dB
10 W
139
Attenuator
791 921
0 – 4000 MHz
20 dB
10 W
139
50-Ω Load
K 62 26 61 1
0 – 2500 MHz
–
0.5 W
140
50-Ω Load
784 10367
0 – 4000 MHz
–
1.5 W
140
50-Ω Load
K 62 26 11 1
0 – 2500 MHz
–
2W
140
50-Ω Load
K 62 26 40 1
0 – 2500 MHz
–
10 W
141
50-Ω Load
K 62 26 41 1
0 – 2500 MHz
–
10 W
141
50-Ω Load
K 62 26 20 1
0 – 2500 MHz
–
25 W
141
50-Ω Load
K 62 26 21 1
0 – 2500 MHz
–
25 W
141
50-Ω Load
K 62 26 20 7
0 – 2500 MHz
–
25 W
141
50-Ω Load
K 62 26 21 7
0 – 2500 MHz
–
25 W
141
50-Ω Load
K 62 26 30 1
0 – 2500 MHz
–
50 W
141
50-Ω Load
K 62 26 31 1
0 – 2500 MHz
–
50 W
141
50-Ω Load
K 62 26 30 7
0 – 2500 MHz
–
50 W
141
50-Ω Load
K 62 26 31 7
0 – 2500 MHz
–
50 W
141
50-Ω Load
K 62 26 50 1
0 – 1000 MHz
–
100 W
141
50-Ω Load
K 62 26 51 1
0 – 1000 MHz
–
100 W
141
50-Ω Load
K 62 26 50 7
0 – 1000 MHz
–
100 W
141
117
3-dB Coupler (90° Hybrid)
68 – 108 MHz
The 3-dB coupler can be used:
– as decoupled power splitter with a ratio
of 1:1,
– for the decoupled combining of two transmitters with arbitrarily low frequency spacing (at 3-dB loss),
– for the decoupled combining of two receivers with arbitrarily low frequency spacing,
– for the decoupled combining of two transmitter/receiver units, whose integrated
duplexers are within the same frequency
range,
– as a frequency independent 90° phase
shifter,
– as a component to form combiners.
3
Decoupled combining can be achieved via
the diagonally opposite ports 2 and 3
respectively 1 and 4.
2
Attenuation 1 ↔ 2 / dB
1
Attenuation 1↔ 3 / dB
Design and function:
The 3-dB coupler has four ports, two of
which are decoupled from each other.
For example effective power entering into
port 1 is distributed into ports 2 and 3.
Port 4 is decoupled and without power if
ports 2 and 3 are ideally matched. In practice an absorber of suitable power is to be
planned for according to the mismatch of
ports 2 and 3.
K 62 70 47
Packing size
Dimensions (w x h x d)
108
Attenuation 2 ↔ 3 vs VSWR at port 1
K 62 70 41
K 62 70 47
N female
7-16 female
silver-plated
silver-plated
68 – 108 MHz
3 ±0.4 dB
See diagram
> 35 dB
< 1.06
50 Ω
1000 W
Grey (RAL 7032)
With 2 screws (max. 6 mm diameter)
2.3 kg
931 mm x 126 mm x 54 mm
886 mm x 40 mm x 95 mm 885 mm x 40 mm x 84 mm
(incl. connectors)
(incl. connectors)
Note: VSWR and attenuation are measured when the remaining ports are
terminated with 50-Ω loads.
118
1↔ 3
3.5
Frequency/MHz
Attenuation 2 ↔ 3 / dB
Frequency range
Attenuation 1 ↔ 2 / 1 ↔ 3
Attenuation 2 ↔ 3
Directivity
VSWR
Impedance
Max. power
Colour
Installation
Weight
1↔ 2
3.0
68
Technical Data
Connectors
2.5
4
Any open ports must be terminated with
suitable loads.
Type No.
Typical attenuation 1 ↔ 2 and 1 ↔ 3
vs frequency
25
20
15
1.0
1.5
2.0
VSWR at port 1
(with 50-Ω load at port 4)
4.7-dB, 6-dB, 7-dB, 10-dB Coupler (90° Hybrid)
68 – 108 MHz
The 4.7-dB coupler is used as a decoupled splitter for power splitting purposes at a 1 : 2 ratio.
An effective power entering into e.g. port 1 is divided between the ports 2 and 3 at a ratio of 1 : 2.
Thus 1/3 of the input power (attenuation: 4.7 dB)
is available at port 2 and 2/3 of the input power is
available at port 3.
The 6-dB coupler is used as a decoupled splitter
for power splitting purposes at a 1 : 3 ratio.
An effective power entering into e.g. port 1 is divided between the ports 2 and 3 at a ratio of 1 : 3.
Thus 1/4 of the input power (attenuation: 6 dB) is
available at port 2 and 3/4 of the input power is
available at port 3.
793
793
793
721
The 7-dB coupler is used as a decoupled splitter
for power splitting purposes at a 1 : 4 ratio.
An effective power entering into e.g. port 1 is divided between the ports 2 and 3 at a ratio of 1 : 4.
Thus 1/5 of the input power (attenuation: 7 dB) is
available at port 2 and 4/5 of the input power is
available at port 3.
097
099
101
000
The 10-dB coupler is used as a decoupled splitter for power splitting purposes at a 1 : 9 ratio.
An effective power entering at e.g. port 1 is divided between the ports 2 and 3 at a ratio of 1 : 9.
Thus 1/10 of the input power (attenuation: 10 dB)
is available at port 2 and 9/10 of the input power
is available at port 3.
Port 4 is decoupled and remains free of power if
the ports 2 and 3 are ideally matched. In practice
an absorber of suitable power at port 4 is to be
planned in accordance with the mismatch of ports
2 and 3.
1
3
2
4
Decoupled combining can be achieved via the
diagonally opposite ports 2 and 3 respectively 1
and 4.
Technical Data
Type No.
N female
7-16 female
Version
Frequency range
Attenuation 1↔3 (4↔2)
Attenuation 1↔2 (4↔3)
Directivity
VSWR
Impedance
Input power
Connectors
Material
Colour
Installation
Weight
Packing size
Dimensions
N female (w x h x d)
7-16 female (w x h x d)
720 938
793 097
793 098
793 099
793 100
793 101
720 296
721 000
4.7-dB coupler
6-dB coupler
7-dB coupler 10-dB coupler
68 – 108 MHz
1.8 ±0.3 dB
1.25 ±0.2 dB
1.0 ±0.2 dB
0.5 ±0.2 dB
4.7 ±0.5 dB
6.0 ±0.5 dB
7.0 ±0.5 dB
10 ±0.5 dB
> 30 dB
< 1.1
50 Ω
< 1000 W total power
Silver-plated
Brass, silver-plated
Grey (RAL 7032)
With 2 screws (max. 5 mm diameter)
2.2 kg
2.8 kg
2.8 kg
3.5 kg
910 mm x 47 mm x 115 mm
886 mm x 40 mm x 95 mm (with connectors)
886 mm x 40 mm x 84 mm (with connectors)
Note: VSWR and attenuation are measured when the remaining ports are terminated with
50-Ω loads.
119
Hybrid Ring Junction (180° Hybrid)
68 – 87.5 MHz
The hybrid ring junction can be used:
– as a power splitter with a ratio of 1:1,
– for the decoupled combining of two
transmitters with arbitrarily low frequency
spacing (at 3 dB loss),
– for the decoupled combining of two
receivers with arbitrarily low frequency
spacing,
– for the decoupled combining of two
transmitter/ receiver units, whose integrated duplexers are within the same
frequency range,
– as component to form combiners.
1
2
Attenuation 1↔2 / dB
Description:
The hybrid ring junction has four ports, two
of which are decoupled from each other.
For example effective power entering into
port 1 is distributed into ports 2 and 4, port
3 is decoupled and without power if ports 2
and 4 are ideally matched. In practice an
absorber of suitable power at port 3 is to be
planned for according to the mismatch of
ports 2 and 4.
Decoupled combining can be made via port
1 and 3 or 2 and 4.
Attenuation 1↔4 / dB
3
4
Typical attenuation 1↔2 and 1↔4
vs frequency
2.5
1↔ 4
3.0
1↔ 2
3.5
68
87.5
Frequency/MHz
Attenuation 2↔4 / dB
Attenuation 1↔3 / dB
Attenuation 1↔3 or 2↔4 vs frequency
20
30
40
68
70
75
80
85
Frequency/MHz
88
typical attenuation
guaranteed values
The remaining ports are terminated with 50-Ω loads.
Technical Data
Type No.
Frequency range
Attenuation 1↔2 bzw. 1↔4
Attenuation 1↔3 bzw. 2↔4
VSWR*
Impedance
Input power
Connector
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
K 62 73 41
68 – 87.5 MHz
3.2 ±0.4 dB
See diagrams
< 1.3
50 Ω
< 100 W per Input
N female
Housing: Aluminium
With 2 screws (M4)
650 g
230 mm x 35 mm x 130 mm
225 mm x 32 mm x 117 mm
(with connectors)
Note: VSWR and attenuation are measured when the remaining ports are
terminated with 50-Ω loads.
120
2
λ/4
λ/4
1
3
λ/4
3/4λ
4
Decoupled Power Splitter
68 – 87.5 MHz
The decoupled power splitter can be used:
– for power distribution, e. g. from one
common antenna to several receivers with
frequency spacing as narrow as desired,
– for power distribution, e. g. from one transmitter to several outputs,
– for decoupled combining of several transmitters with frequency spacing as narrow
as desired,
– for decoupled combining of several transmitting/receiving units, whose integrated
duplexers are within the same frequency
range.
724 346
Function:
The decoupled 1:3 power splitter has 3 inputs, one output and 3 absorber ports. The
decoupled 1:4 power splitter has 4 inputs,
one output and 4 absorber ports. The inputs
are only decoupled if the absorber ports are
terminated with 50-Ω loads of suitable power.
Dimensioning of the absorbers:
The absorbers of the 1:3-power splitter have
to be dimensioned so that at least 2/3 of the
power fed into the inputs can be absorbed.
Example: If a power of 50 W is fed into every
input, the absorbers have to absorb 33 W
each.
The absorbers of the 1:4 power splitter have
to be dimensioned so that at least 3/4 of the
power fed into the inputs can be absorbed.
Example: If a power of 50 W is fed into every
input, the absorbers have to absorb 37 W
each.
1:4 power splitter 725 870
Antenna
E1
E2
E3
E4
Technical Data
A1
Type No.
724 346
A2
A3
A4
725 870
1:3 power splitter 1:4 power splitter
Power ratio
Frequency range
Power dividing loss
(incl. insertion loss)
Isolation between inputs
Impedance
VSWR
Input power
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
1:3
1:4
68 – 87.5 MHz
< 5.5 dB
> 23 dB
< 6.5 dB
> 30 dB
50 Ω
< 1.2
< 100 W per input
N female
Housing: Aluminium
With 2 screws (max. 4 mm diameter)
2 kg
432 mm x 127 mm x 119 mm
405 mm x 76 mm x 104 mm
(with connectors)
Connectors E 1 ... E 4: Inputs, decoupled
Connectors A 1 ... A 4: External 50 Ω absorbers
Note: VSWR and attenuation are measured when the remaining ports
are terminated with 50-Ω loads.
121
Circulator
68 – 88 MHz
The circulator can be used:
– to increase the coupling attenuation between transmitters, to reduce intermodulation products,
– to prevent adverse effects of unmatched
load impedance on amplifier performance.
Function:
The circulator is a non-reciprocal component with low insertion loss in the forward
direction (1 → 2) and high attenuation in the
reverse direction (2 → 1). The impedance
at the input (1) of the circulator is constant
and independent of the impedance of the
components following. The reflected power
at output (2) is passed to the absorber port
(3), which must be terminated with an
absorber.
3
1
2
Dimensioning of the absorber:
The absorber at port (3) must be dimensioned to be able to absorb the maximum
power reflected at output (2).
mm deep
mm deep
Technical Data
Type No.
Frequency range
Insertion loss 1 → 2
Isolation 2 → 1
VSWR 1, 2, 3
Impedance
Input power
Temperature range
Connectors
Weight
Packing size
Dimensions (w x h x d)
122
793 276
68 – 88 MHz
< 0.45 dB
> 20 dB
< 1.22
50 Ω
< 50 W
–10 … +55 °C
N female
660 g
150 mm x 115 mm x 105 mm
105 mm x 87 mm x 32 mm
(with connectors)
DC-Stop
68 … 470 MHz
The DC-Stop is used to block DC voltage
in coaxial cables where the specified RF
frequencies are passed.
Special features:
– galvanic DC isolation of the inner and
outer conductors of a coaxial cable,
– at the input and output of the DC-Stop
the inner and outer conductor is DC
connected. This avoids DC voltage
differences between inner and outer
conductors,
– protection against electric shock hazard
because of plastic housing construction.
Design and construction:
The DC-Stop consists of broad band transformers and high voltage capacitors.
721 062
Technical Data
Type No.
Frequency range
Insertion loss
VSWR
Impedance
Input power
DC test voltage
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
721 062
68 – 87.5 MHz
146 – 174 MHz
380 – 470 MHz
< 0.8 dB (68 – 87.5 MHz)
< 1.0 dB (146 – 174 MHz)
< 1.5 dB (380 – 470 MHz)
< 1.4
50 Ω
< 10 W
4 kV
Mounting clamps for coaxial cable
RG 213/U, RG 214U
Housing: Polyester
With 4 screws (max. 4 mm diameter)
350 g
190 mm x 100 mm x 65 mm
180 mm x 75 mm x 55 mm
123
3-dB Coupler (90° Hybrid)
140 – 180 MHz
The 3-dB coupler can be used:
– as a decoupled power splitter with a ratio
of 1:1,
– for the decoupled combining of two
transmitters with frequency spacing as
narrow as desired (at 3 dB loss),
– for the decoupled combining of two
receivers with frequency spacing as
narrow as desired,
– for the decoupled combining of two
transmitter/receiver units, whose integrated duplexers are within the same
frequency range,
– as a frequency-independent 90° phase
shifter,
– as a component to form combiners.
2
3
Attenuation 1 ↔ 3 / dB
1
Attenuation 1 ↔ 2 / dB
Function:
The 3-dB coupler has four ports, two of
which are decoupled from each other. For
example effective power entering into port
1 is distributed into ports 2 and 3. Port 4 is
decoupled and without power if ports 2 and
3 are ideally matched. In practice an absorber of suitable power at port 4 is to be
planned in accordance with the mismatch
of ports 2 and 3.
Decoupled combining can be achieved via
the diagonally opposite ports 2 and 3 or 1
and 4.
K 62 70 27
Typical attenuation 1 ↔ 2 and 1 ↔ 3
vs frequency
2.5
1↔ 2
3.0
1↔ 3
3.5
4
806
140
180
960
Frequency/MHz
Technical Data
Connectors
Frequency range
Attenuation 1 ↔ 2 / 1 ↔ 3
Attenuation 2 ↔ 3
Directivity
VSWR
Impedance
Input power
Material
Colour
Installation
Weight
Packing size
Dimensions (w x h x d)
K 62 70 21
K 62 70 27
N female
7-16 female
silver-plated
silver-plated
140 – 180 MHz
3 ±0.4 dB
See diagram
> 35 dB
< 1.06
50 Ω
< 800 W total power
Brass, silver-plated
Grey (RAL 7032)
With 2 screws (max. 5 mm diameter)
1.4 kg
520 mm x 47 mm x 115mm
496 mm x 40 mm x 95 mm 496 mm x 40 mm x 84 mm
(with connectors)
(with connectors)
Note: VSWR and attenuation are measured when the remaining ports are
terminated with 50-Ω loads.
124
Attenuation 2 ↔ 3 / dB
Type No.
Attenuation 2 ↔ 3 vs. VSWR at port 1
25
20
15
1.0
1.5
2.0
VSWR at port 1
(with 50-Ω load at port 4)
4.7-dB, 6-dB, 7-dB, 10-dB Coupler (90° Hybrid)
146 – 174 MHz
The 4.7-dB coupler is used as a decoupled splitter
for power splitting purposes at a 1 : 2 ratio.
An effective power entering into e.g. port 1 is divided between the ports 2 and 3 at a ratio of 1 : 2.
Thus 1/3 of the input power (attenuation: 4.7 dB) is
available at port 2 and 2/3 of the input power is
available at port 3.
The 6-dB coupler is used as a decoupled splitter
for power splitting purposes at a 1 : 3 ratio.
An effective power entering into e.g. port 1 is divided between the ports 2 and 3 at a ratio of 1 : 3.
Thus 1/4 of the input power (attenuation: 6 dB) is
available at port 2 and 3/4 of the input power is
available at port 3.
793
793
793
722
102
103
104
675
The 7-dB coupler is used as a decoupled splitter
for power splitting purposes at a 1 : 4 ratio.
An effective power entering into e.g. port 1 is divided between the ports 2 and 3 at a ratio of 1 : 4.
Thus 1/5 of the input power (attenuation: 7 dB) is
available at port 2 and 4/5 of the input power is
available at port 3.
The 10-dB coupler is used as a decoupled splitter
for power splitting purposes at a 1 : 9 ratio.
An effective power entering at e.g. port 1 is divided
between the ports 2 and 3 at a ratio of 1 : 9.
Thus 1/10 of the input power (attenuation: 10 dB) is
available at port 2 and 9/10 of the input power is
available at port 3.
1
3
2
4
Port 4 is decoupled and remains free of power if
the ports 2 and 3 are ideally matched. In practice
an absorber of suitable power at port 4 is to be
planned in accordance with the mismatch of ports 2
and 3.
Decoupled combining can be achieved via the diagonally opposite ports 2 and 3 respectively 1 and 4.
Technical Data
Type No.
N female
7-16 female
Version
Frequency range
Attenuation 1↔3 (4↔2)
Attenuation 1↔2 (4↔3)
Directivity
VSWR
Impedance
Input power
Connectors
Material
Colour
Installation
Weight
Packing size
Dimensions
N female (w x h x d)
7-16 female (w x h x d)
717 401
793 102
721 060
793 103
719 090
793 104
720 298
722 675
4.7-dB coupler
6-dB coupler
7-dB coupler
10-dB coupler
146 – 174 MHz
1.8 ±0.3 dB
1.25 ±0.2 dB
1.0 ±0.2 dB
0.5 ±0.2 dB
4.7 ±0.5 dB
6.0 ±0.5 dB
7.0 ±0.5 dB
10 ±0.5 dB
> 30 dB
< 1.1
50 Ω
< 800 W total power
Silver-plated
Brass, silver-plated
Grey (RAL 7032)
With 2 screws (max. 5 mm diameter)
1.4 kg
1.7 kg
1.7 kg
2 kg
520 mm x 47 mm x 115 mm
496 mm x 40 mm x 95 mm (with connectors)
496 mm x 40 mm x 84 mm (with connectors)
Note: VSWR and attenuation are measured when the remaining ports are terminated with
50-Ω loads.
125
Hybrid Ring Junction (180° Hybrid)
146 – 174 MHz
The hybrid ring junction can be used:
– as a power splitter with a ratio of 1:1,
– for the decoupled combining of two
transmitters with arbitrarily low frequency
spacing (at 3 dB loss),
– for the decoupled combining of two
receivers with arbitrarily low frequency
spacing,
– for the decoupled combining of two
transmitter/receiver units, whose integrated duplexers are within the same
frequency range,
– as component to form combiners.
1
2
Attenuation 1↔2 / dB
Description:
The hybrid ring junction has four ports, two
of which are decoupled from each other.
For example effective power entering into
port 1 is distributed into ports 2 and 4, port
3 is decoupled and without power if ports 2
and 4 are ideally matched. In practice an
absorber of suitable power at port 3 is to be
planned for according to the mismatch of
ports 2 and 4.
Decoupled combining can be made via port
1 and 3 or 2 and 4.
Attenuation 1↔4 / dB
3
4
Typical attenuation 1↔2 and 1↔4
vs frequency
2.5
1↔ 4
3.0
1↔ 2
3.5
146
174
Frequency/MHz
Attenuation 1↔3 / dB
Attenuation 2↔4 / dB
Attenuation 1↔3 or 2↔4 vs frequency
20
30
40
140
146
150
160
170 174
Frequency/MHz
180
typical attenuation
guaranteed values
The remaining ports are terminated with 50-Ω loads.
Technical Data
Type No.
Frequency range
Attenuation 1↔2 bzw. 1↔4
Attenuation 1↔3 bzw. 2↔4
VSWR*
Impedance
Input power
Connector
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
K 62 73 21
146 – 174 MHz
3 ±0.4 dB
See diagrams
< 1.2
50 Ω
< 100 W per Input
N female
Housing: Aluminium
With 2 screws (M4)
550 g
230 mm x 35 mm x 130 mm
225 mm x 32 mm x 117 mm
(with connectors)
Note: VSWR and attenuation are measured when the remaining ports are
terminated with 50-Ω loads.
126
2
λ/4
λ/4
1
3
λ/4
3/4λ
4
Decoupled Power Splitter
146 – 174 MHz
The decoupled power splitter can be used:
– for power distribution, e. g. from one common antenna to several receivers with
frequency spacing as narrow as desired,
– for power distribution, e. g. from one
transmitter to several outputs,
– for decoupled combining of several transmitters with frequency spacing as narrow
as desired,
– for decoupled combining of several transmitting/receiving units, whose integrated
duplexers are within the same frequency
range.
Function:
The decoupled 1:3 power splitter has 3 inputs, one output and 3 absorber ports. The
decoupled 1:4 power splitter has 4 inputs,
one output and 4 absorber ports. The inputs
are only decoupled if the absorber ports are
terminated with 50-Ω loads of suitable
power.
725 234
Dimensioning of the absorbers:
The absorbers of the 1:3 power splitter have
to be dimensioned so that at least 2/3 of the
power fed into the inputs can be absorbed.
Example: If a power of 50 W is fed into
every input, the absorbers have to absorb
33 W each.
The absorbers of the 1:4 power splitter have
to be dimensioned so that at least 3/4 of the
power fed into the inputs can be absorbed.
Example: If a power of 50 W is fed into
every input, the absorbers have to absorb
37 W each.
1:4 power splitter 725 234
Antenna
E1
E2
E3
E4
Technical Data
Type No.
Power ratio
Frequency range
Power dividing loss
(incl. insertion loss)
Isolation between inputs
Impedance
VSWR
Input power
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
724 347
725 234
1:3 power splitter
1:4 power splitter
1:3
1:4
146 – 174 MHz
A1
< 5.5 dB
> 23 dB
A2
A3
A4
< 6.5 dB
> 30 dB
50 Ω
< 1.2
< 100 W per input
N female
Housing: Aluminium
With 2 screws (max. 4 mm diameter)
1 kg
2 kg
265 mm x 105 mm x 120 mm
240 mm x 94 mm x 114 mm
(with connectors)
Connectors E 1 ... E 4: Inputs, decoupled
Connectors A 1 ... A 4: External 50-Ω absorbers
Note: VSWR and attenuation are measured when the remaining ports
are terminated with 50-Ω loads.
127
Circulator
146 – 174 MHz
The circulator can be used:
– to increase the coupling attenuation
between transmitters, to reduce intermodulation products,
– to prevent adverse effects of unmatched
load impedance on amplifier performance.
3
Function:
The circulator is a nonreciprocal component with low insertion loss in the forward
direction (1 → 2) and high attenuation in
the reverse direction (2 → 1). The impedance at the input (1) of the circulator is
constant and independent of the impedance of the components following. The reflected power at output (2) is passed to the
absorber port (3), which must be terminated with an absorber.
1
Dimensioning of the absorber:
The absorber at port (3) must be dimensioned to be able to absorb the maximum
power reflected at output (2).
2
793 277
deep
deep
Technical Data
Type No.
Frequency range
Insertion loss 1 → 2
Isolation 2 → 1
VSWR 1, 2, 3
Impedance
Input power
Temperature range
Connectors
Weight
Packing size
Dimensions (w x h x d)
128
793 277
146 – 174 MHz
< 0.5
> 20 dB
< 1.22
50 Ω
< 100 W
–10 … +55 °C
N female
660 g
150 mm x 115 mm x 105 mm
105 mm x 87 mm x 32 mm
(with connectors)
Circulator
146 – 174 MHz
The circulator can be used:
– to increase the coupling attenuation
between transmitters, to reduce intermodulation products,
– to prevent adverse effects of unmatched
load impedance on amplifier performance.
Function:
The circulator is a nonreciprocal component with low insertion loss in the forward
direction (1 → 2) and high attenuation in
the reverse direction (2 → 1). The impedance at the input (1) of the circulator is
constant and independent of the impedance of the components following. The reflected power at output (2) is passed to the
absorber port (3), which must be terminated with an absorber.
3
1
2
780 060
Dimensioning of the absorber:
The absorber at port (3) must be dimensioned to be able to absorb the maximum
power reflected at output (2).
Technical Data
Type No.
Frequency range
Insertion loss 1 → 2
Isolation 2 → 1
VSWR 1, 2, 3
Impedance
Input power
Temperature range
Connectors
Weight
Packing size
Dimensions (w x h x d)
780 060
146 – 174 MHz
< 1.0 dB (typ. 0.6 dB)
> 40 dB
< 1.25
50 Ω
< 100 W
0 … +60 °C
N female
1.3 kg
205 mm x 115 mm x 105 mm
175 mm x 87 mm x 32 mm
(with connectors)
129
3-dB Coupler (90° Hybrid)
340 – 512 MHz
The 3-dB coupler can be used:
– as a decoupled power splitter with a ratio
of 1:1,
– for the decoupled combining of two
transmitters with frequency spacing as
narrow as desired (at 3 dB loss),
– for the decoupled combining of two
receivers with frequency spacing as
narrow as desired,
– for the decoupled combining of two
transmitter/receiver units, whose integrated duplexers are within the same frequency range,
– as a frequency-independent 90° phase
shifter,
– as a component to form combiners.
2
3
Attenuation 1 ↔ 3 / dB
1
Attenuation 1 ↔ 2 / dB
Function:
The 3-dB coupler has four ports, two of
which are decoupled from each other. For
example effective power entering into port
1 is distributed into ports 2 and 3. Port 4 is
decoupled and without power if ports 2 and
3 are ideally matched. In practice an absorber of suitable power at port 4 is to be
planned in accordance with the mismatch
of ports 2 and 3.
Decoupled combining can be achieved via
the diagonally opposite ports 2 and 3 or 1
and 4.
K 63 70 27
Typical attenuation 1 ↔ 2 and 1 ↔ 3
vs frequency
2.5
1↔ 2
3.0
1↔ 3
3.5
4
Customized versions:
On request couplers with a coupling attenuation of between 3 dB and 10 dB are available.
340
806
512
960
Frequency/MHz
Attenuation 2 ↔ 3 vs VSWR at port 1
Technical Data
Type No.
Connectors
Frequency range
Attenuation 1 ↔ 2 / 1 ↔ 3
Attenuation 2 ↔ 3
Directivity
VSWR
Impedance
Input power
Material
Colour
Installation
Weight
Packing size
Dimensions (w x h x d)
K 63 70 21
K 63 70 27
N female
7-16 female
silver-plated
silver-plated
340 – 512 MHz
3 ±0.4 dB
See diagram
> 35 dB
< 1.06
50 Ω
< 500 W total power
Brass, silver-plated
Grey (RAL 7032)
With 2 screws (max. 5 mm diameter)
0.9 kg
275 mm x 47 mm x 115 mm
252 mm x 40 mm x 95 mm 252 mm x 40 mm x 84 mm
(with connectors)
(with connectors)
Note: VSWR and attenuation are measured when the remaining ports are
terminated with 50-Ω loads.
130
25
20
15
1.0
1.5
2.0
VSWR at port 1
(with 50-Ω load at port 4)
4.7-dB, 6-dB, 7-dB, 10-dB Coupler (90° Hybrid)
380 – 470 MHz
The 4.7-dB coupler is used as a decoupled splitter
for power splitting purposes at a 1 : 2 ratio.
An effective power entering into e.g. port 1 is divided between the ports 2 and 3 at a ratio of 1 : 2.
Thus 1/3 of the input power (attenuation: 4.7 dB) is
available at port 2 and 2/3 of the input power is
available at port 3.
The 6-dB coupler is used as a decoupled splitter
for power splitting purposes at a 1 : 3 ratio.
An effective power entering into e.g. port 1 is divided between the ports 2 and 3 at a ratio of 1 : 3.
Thus 1/4 of the input power (attenuation: 6 dB) is
available at port 2 and 3/4 of the input power is
available at port 3.
722
790
790
720
488
589
590
942
The 7-dB coupler is used as a decoupled splitter
for power splitting purposes at a 1 : 4 ratio.
An effective power entering into e.g. port 1 is divided between the ports 2 and 3 at a ratio of 1 : 4.
Thus 1/5 of the input power (attenuation: 7 dB) is
available at port 2 and 4/5 of the input power is
available at port 3.
The 10-dB coupler is used as a decoupled splitter
for power splitting purposes at a 1 : 9 ratio.
An effective power entering at e.g. port 1 is divided
between the ports 2 and 3 at a ratio of 1 : 9.
Thus 1/10 of the input power (attenuation: 10 dB)
is available at port 2 and 9/10 of the input power is
available at port 3.
1
3
2
4
Port 4 is decoupled and remains free of power if
the ports 2 and 3 are ideally matched. In practice
an absorber of suitable power at port 4 is to be
planned in accordance with the mismatch of ports
2 and 3.
Decoupled combining can be achieved via the diagonally opposite ports 2 and 3 respectively 1 and 4.
Technical Data
Type No.
N female
7-16 female
Version
Frequency range
Attenuation 1↔3 (4↔2)
Attenuation 1↔2 (4↔3)
Directivity
VSWR
Impedance
Input power
Connectors
Material
Colour
Installation
Weight
Packing size
Dimensions
N female (w x h x d)
7-16 female (w x h x d)
719 782
722 488
792 777
790 589
792 331
790 590
720 297
720 942
4.7-dB coupler 6-dB coupler 7-dB coupler 10-dB coupler
380 – 470 MHz
1.8 ±0.3 dB
1.25 ±0.2 dB
1.0 ±0.2 dB
0.5 ±0.2 dB
4.7 ±0.5 dB
6.0 ±0.5 dB
7.0 ±0.5 dB
10 ±0.5 dB
> 30 dB
> 30 dB
> 30 dB
> 27 dB
< 1.1
50 Ω
< 500 W
Silver-plated
Brass, silver-plated
Grey (RAL 7032)
With 2 screws (max. 5 mm diameter)
1.0 kg
275 mm x 47 mm x 115 mm
252 mm x 40 mm x 95 mm (with connectors)
252 mm x 40 mm x 84 mm (with connectors)
Note: VSWR and attenuation are measured when the remaining ports are terminated with
50-Ω loads.
131
Hybrid Ring Junction (180° Hybrid)
380 – 430 MHz
TETRA, TETRAPOL
The hybrid ring junction can be used:
– as a power splitter with a ratio of 1:1,
– for the decoupled combining of two
transmitters with arbitrarily low frequency
spacing (at 3 dB loss),
– for the decoupled combining of two
receivers with arbitrarily low frequency
spacing,
– for the decoupled combining of two
transmitter/ receiver units, whose intgrated duplexers are within the same
frequency range,
– as component to form combiners.
1
2
Attenuation 1↔2 / dB
Description:
The hybrid ring junction has four ports, two
of which are decoupled from each other.
For example effective power entering into
port 1 is distributed into ports 2 and 4, port
3 is decoupled and without power if ports 2
and 4 are ideally matched. In practice an
absorber of suitable power at port 3 is to be
planned for according to the mismatch of
ports 2 and 4.
Decoupled combining can be made via
port 1 and 3 or 2 and 4.
Attenuation 1↔4 / dB
3
4
Typical attenuation 1↔2 and 1↔4
vs frequency
2.5
1↔4
3.0
1↔2
3.5
380
430
Frequency/MHz
Attenuation 2↔4 / dB
Attenuation 1↔3 / dB
Attenuation 1↔3 or 2↔4 vs frequency
20
30
40
370
380
390
410
430
Frequency/MHz
450
typical attenuation
guaranteed values
The remaining ports are terminated with 50-Ω loads.
Technical Data
Type No.
Frequency range
Attenuation 1↔2 bzw. 1↔4
Attenuation 1↔3 bzw. 2↔4
VSWR*
Impedance
Input power
Connector
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
730 092
380 – 430 MHz
3 ±0.4 dB
See diagrams
< 1.2
50 Ω
< 100 W per Input
N female
Housing: Aluminium
With 2 screws (M4)
500 g
230 mm x 35 mm x 130 mm
225 mm x 32 mm x 117 mm
(with connectors)
Note: VSWR and attenuation are measured when the remaining ports are
terminated with 50-Ω loads.
132
2
λ/4
λ/4
1
3
λ/4
3/4λ
4
Hybrid Ring Junction (180° Hybrid)
400 – 470 MHz
The hybrid ring junction can be used:
– as a power splitter with a ratio of 1:1,
– for the decoupled combining of two
transmitters with arbitrarily low frequency
spacing (at 3 dB loss),
– for the decoupled combining of two
receivers with arbitrarily low frequency
spacing,
– for the decoupled combining of two
transmitter/receiver units, whose integrated duplexers are within the same
frequency range,
– as component to form combiners.
1
2
Attenuation 1↔2 / dB
Description:
The hybrid ring junction has four ports, two
of which are decoupled from each other.
For example effective power entering into
port 1 is distributed into ports 2 and 4, port
3 is decoupled and without power if ports 2
and 4 are ideally matched. In practice an
absorber of suitable power at port 3 is to be
planned for according to the mismatch of
ports 2 and 4.
Decoupled combining can be made via
port 1 and 3 or 2 and 4.
Attenuation 1↔4 / dB
3
4
Typical attenuation 1↔2 and 1↔4
vs frequency
2.5
1↔4
3.0
1↔2
3.5
400
470
Frequency/MHz
Attenuation 1↔3 / dB
Attenuation 2↔4 / dB
Attenuation 1↔3 or 2↔4 vs frequency
20
30
40
400
406
420
440
460
480
465
Frequency/MHz
typical attenuation
guaranteed values
The remaining ports are terminated with 50-Ω loads.
Technical Data
Type No.
Frequency range
Attenuation 1↔2 bzw. 1↔4
Attenuation 1↔3 bzw. 2↔4
VSWR*
Impedance
Input power
Connector
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
K 63 73 211
400 – 470 MHz
3 ±0.4 dB
See diagrams
< 1.2
50 Ω
< 100 W per Input
N female
Housing: Aluminium
With 2 screws (M4)
500 g
230 mm x 35 mm x 130 mm
225 mm x 32 mm x 117 mm
(with connectors)
2
λ/4
λ/4
1
3
λ/4
3/4λ
4
Note: VSWR and attenuation are measured when the remaining ports are
terminated with 50-Ω loads.
133
Decoupled Power Splitter
380 – 430 MHz
TETRA, TETRAPOL
The decoupled power splitter can be used:
– for power distribution. For example: From
one common antenna to several receivers
of arbitrarily low frequency spacing,
– for power distribution. For example: From
one transmitter to several outputs,
– for decoupled combining of several transmitters with arbitrarily low frequency
spacing (loss: 4.7 dB resp. 6 dB),
– for decoupled combining of several transmitting/receiving units, whose integrated
duplexers are within the same frequency
range.
Function:
The decoupled power splitter has 3 or 4
inputs, one output, as well as 3 or 4 absorber ports. The inputs are only decoupled
when the absorber ports are terminated with
50-Ω loads of suitable power.
782 10189
The absorbers of the 3:1-power splitter have
to be dimensioned so that at least 2/3 of the
power fed into the inputs can be absorbed.
Example: If a power of 50 W is fed into
every input, the absorbers have to absorb
33 W each.
The absorbers of the 4:1 power splitter have
to be dimensioned so that at least 3/4 of the
power fed into the inputs can be absorbed.
Example: If a power of 50 W is fed into
every input, the absorbers have to absorb
37 W each.
1 : 4 power splitter 782 10189
Output
(Antenna)
E1
E2
E3
E4
Technical Data
Type No.
Power ratio
Frequency range
Power dividing loss
(incl. insertion loss)
Isolation between inputs
Impedance
VSWR
Input power
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
134
782 10231
782 10189
1 : 3 Power splitter 1 : 4 Power splitter
1:3
1:4
380 – 430 MHz
< 5.5 dB
> 25 dB
A1
A2
A3
A4
< 6.5 dB
> 30 dB
50 Ω
< 1.2
< 100 W per input
N female
Housing: Aluminium
With 2 screws
(max. 4 mm diameter)
1.0 kg
1.5 kg
220 mm x 90 mm x 110 mm
190 mm x 80 mm x 94 mm
(with connectors)
Connectors E 1 ... E 4: Inputs, decoupled
Connectors A 1 ... A 4: External 50-Ω absorbers
Decoupled Power Splitter
400 – 470 MHz
The decoupled power splitter can be used:
– for power distribution. For example: From
one common antenna to several receivers
of arbitrarily low frequency spacing,
– for power distribution. For example: From
one transmitter to several outputs,
– for decoupled combining of several transmitters with arbitrarily low frequency
spacing (loss: 4.7 dB resp. 6 dB),
– for decoupled combining of several transmitting/receiving units, whose integrated
duplexers are within the same frequency
range.
Function:
The decoupled power splitter has 3 or 4
inputs, one output, as well as 3 or 4 absorber ports. The inputs are only decoupled
when the absorber ports are terminated with
50-Ω loads of suitable power.
725 871
The absorbers of the 3:1-power splitter have
to be dimensioned so that at least 2/3 of the
power fed into the inputs can be absorbed.
Example: If a power of 50 W is fed into
every input, the absorbers have to absorb
33 W each.
The absorbers of the 4:1 power splitter have
to be dimensioned so that at least 3/4 of the
power fed into the inputs can be absorbed.
Example: If a power of 50 W is fed into
every input, the absorbers have to absorb
37 W each.
1 : 4 power splitter 725 871
Output
(Antenna)
E1
E2
E3
E4
Technical Data
Type No.
Power ratio
Frequency range
Power dividing loss
(incl. insertion loss)
Isolation between inputs
Impedance
VSWR
Input power
Connectors
Material
Installation
Weight
Packing size
Dimensions (w x h x d)
724 348
725 871
1 : 3 Power splitter 1 : 4 Power splitter
1:3
1:4
400 – 470 MHz
< 5.5 dB
> 25 dB
A1
A2
A3
A4
< 6.5 dB
> 30 dB
50 Ω
< 1.2
< 100 W per input
N female
Housing: Aluminium
With 2 screws
(max. 4 mm diameter)
1.0 kg
1.5 kg
220 mm x 90 mm x 110 mm
190 mm x 80 mm x 94 mm
(with connectors)
Connectors E 1 ... E 4: Inputs, decoupled
Connectors A 1 ... A 4: External 50-Ω absorbers
135
Circulator
380 – 430 MHz (TETRA, TETRAPOL)
400 – 470 MHz
3
The circulator can be used:
– to increase the coupling attenuation
between transmitters, to reduce intermodulation products,
– to prevent adverse effects of unmatched
load impedance on amplifier performance.
Function:
Circulators are nonreciprocal components
with low insertion loss in the forward direction (1 → 2) and high attenuation in the reverse direction (2 → 1). The impedance at
the input (1) of the circulator is constant
and independent of the impedance of the
components following, since the reflected
power is passed to the absorber port (3).
1
2
784 10175
790 215
Technical Data
Type No.
Frequency range
Insertion loss 1 → 2
Isolation 2 → 1
VSWR 1, 2, 3
Impedance
Input power
Temperature range
Connectors
Mounting
Weight
Packing size
Dimensions (w x h x d)
136
784 10175
790 215
380 – 430 MHz
400 – 470 MHz
< 0.5 dB (typ. 0.4 dB)
< 0.5 dB (typ. 0.3 dB)
> 45 dB
> 50 dB
< 1.19
< 1.22
50 Ω
50 Ω
< 200 W
< 100 W
–10 … +55 °C
N female
With 2 screws (M3)
635 g
160 mm x 90 mm x 40 mm
96 mm x 50 mm x 26 mm
(without connectors)
Circulator
400 – 470 MHz
3
The circulator can be used:
– to increase the coupling attenuation
between transmitters, to reduce intermodulation products,
– to prevent adverse effects of unmatched
load impedance on amplifier performance.
Function:
Circulators are nonreciprocal components
with low insertion loss in the forward direction (1 → 2) and high attenuation in the
reverse direction (2 → 1). The impedance
at the input (1) of the circulator is constant
and independent of the impedance of the
components following, since the reflected
power is passed to the absorber port (3).
1
2
791 630
Technical Data
Type No.
Frequency range
Insertion loss 1 → 2
Isolation 2 → 1
VSWR 1, 2, 3
Impedance
Input power
Temperature range
Connectors
Mounting
Weight
Packing size
Dimensions (w x h x d)
791 630
400 – 470 MHz
< 0.3 dB
> 23 dB
< 1.17
50 Ω
< 100 W
–10 … +55 °C
N female
With 2 screws (M3)
380 g
110 mm x 100 mm x 40 mm
51 mm x 51 mm x 26 mm
(without connectors)
137
Attenuator
2W
0 – 4000 MHz
Air-cooled attenuator for low power rating
•
•
•
•
Signal attenuation for test, measuring or tuning purposes
Good matching over large frequency range
Closed metal housing, very stable and RF proof
Free choice of mounting position due to convection-cooling
Technical Data
Type No.
Attenuation
Frequency range
VSWR
Impedance
Max. power
Connectors
Application
Weight
Dimensions (L x diameter)
138
784 10235
3 ±0.3 dB
784 10236
784 10237
6 ±0.3 dB
10 ±0.3 dB
0 – 4000 MHz
< 1.12
50 Ω
2W
N
Indoor
60 g
49 mm x 21 mm
784 10238
20 ±0.5 dB
Attenuator
10 W / 12 W / 15 W
0 – 4000 MHz
Air-cooled attenuator for medium power rating
•
•
•
•
Signal attenuation for test, measuring or tuning purposes
Good matching over large frequency range
Closed metal housing, very stable and RF proof
Free choice of mounting position due to convection-cooling
Technical Data
Type No.
Attenuation
Max. power
Frequency range
VSWR
Impedance
Connectors
Application
Weight
Dimensions (L x diameter)
791 918
3 ±0.3 dB
15 W
791 919
791 920
6 ±0.3 dB
10 ±0.3 dB
12 W
10 W
0 – 4000 MHz
< 1.15
50 Ω
N
Indoor
70 g
50 mm x 26 mm
791 921
20 ±0.5 dB
10 W
139
Load
50 Ω
50-Ω loads are suited as absorbers for small and medium power.
They are used:
– as termination for transmitters or amplifiers used for testing,
measuring or tuning,
– as termination for circulators, directional couplers, hybrid
ring junctions and decoupled power splitters.
Special features of the loads are:
– very low VSWR within a wide frequency range,
– high stability and RF shielding due to the closed aluminium
construction,
– arbitrary installation position because of convectional
cooling,
– 50 W and 100 W models can be installed on front or rear
panels of electrical equipment for heat dissipation.
0.5 Watt *)
Type No.
Connector
Frequency range
VSWR
0 – 1000 MHz
VSWR1000 – 2000 MHz
VSWR2000 – 2500 MHz
Application
Weight
Packing size
Dimensions
K 62 26 61 1
N male
0 – 2500 MHz
< 1.08
< 1.15
< 1.20
Indoor
40 g
90 mm x 60 mm x 25 mm
33 mm / 21 mm diameter
K 62 26 61 1
1.5 Watt *)
Type No.
Connector
Frequency range
VSWR
0 – 2000 MHz
VSWR 2000 – 4000 MHz
IP rating
Application
Weight
Packing size
Dimensions
784 10367
7/16 male
0 – 4000 MHz
< 1.10
< 1.30
IP65
Outdoor
120 g
50 mm x 90 mm x 100 mm
40 mm / 32 mm diameter
784 10367
2 Watt *)
Type No.
Connector
Frequency range
VSWR
0 – 1000 MHz
VSWR 1000 – 2000 MHz
VSWR 2000 – 2500 MHz
Application
Weight
Packing size
Dimensions
140
K 62 26 11 1
N male
0 – 2500 MHz
< 1.08
< 1.15
< 1.20
Indoor
40 g
90 mm x 60 mm x 25 mm
30 mm / 21 mm diameter
K 62 26 11 1
Load
50 Ω
10 Watt *)
Type No.
Connector
Frequency range
VSWR
0 – 1000 MHz
V
1000 – 2000 MHz
VSW R2000 – 2200 MHz
VSW R2200 – 2500 MHz
Application
Weight
Packing size
Dimensions (w x h x d)
by mm
K 62 26 40 1 K 62 26 41 1
N female
N male
0 – 2500 MHz
< 1.08
< 1.15
< 1.20
< 1.25
Indoor
Approx. 250 g
50 mm x 90 mm x 100 mm
40 x 82 x 77
40 x 82 x 85
(incl. connector) (incl. connector)
K 62 26 40 1
25 Watt *)
Type No.
Connector
Frequency range
VSWR
0 – 1000 MHz
VSWR1000 – 2000 MHz
VSWR2000 – 2500 MHz
Application
Weight
Packing size
Dimensions by mm (w x h x d)
K 62 26 20 1
N female
35 x 94 x 113
(incl. connector)
K 62 26 21 1
K 62 26 20 7
N male
7-16 female
0 – 2500 MHz
< 1.08
< 1.15
< 1.20
Indoor
Approx. 500 g
50 mm x 100 mm x 135 mm
35 x 94 x 121
35 x 94 x 125
(incl. connector)
(incl. connector)
K 62 26 21 7
7-16 male
35 x 94 x 124
(incl. connector)
K 62 26 20 1
50 Watt *)
Type No.
Connector
Frequency range
VSWR
0 – 1000 MHz
VSWR1000 – 2000 MHz
VSWR2000 – 2500 MHz
Application
Weight
Packing size
Dimensions by mm (w x h x d)
K 62 26 30 1
N female
67 x 90 x 130
(incl. connector)
K 62 26 31 1
K 62 26 30 7
N male
7-16 female
0 – 2500 MHz
< 1.08
< 1.15
< 1.20
Indoor
Approx. 800 g
80 mm x 95 mm x 145 mm
67 x 90 x 138
67 x 90 x 134
(incl. connector)
(incl. connector)
K 62 26 31 7
7-16 male
67 x 90 x 133
(incl. connector)
K 62 26 30 1
100 Watt *)
Type No.
Connector
Frequency range
VSWR
0 – 1000 MHz
Application
Weight
Packing size
Dimensions by mm (w x h x d)
K 62 26 50 1
K 62 26 51 1
K 62 26 50 7
N female
N male
7-16 female
0 – 1000 MHz
< 1.08
Indoor
Approx. 2.4 kg
130 mm x 195 mm x 180 mm
114 x 153 x 156
114 x 161 x 156
114 x 170 x 156
(including connector)
(including connector)
(including connector)
K 62 26 50 1
*) Rated power at 40 °C ambient temperature. The max. power rating
increases or decreases with falling or rising ambient temperature.
141
142
Active Multicouplers
Active Multicouplers
68 – 87.5 MHz
146 – 174 MHz
380 – 470 MHz
143
144
Summary of Articles
Receiver Multicouplers:
Description
Type No.
Frequency range
... tunable bandwidth
– fixed bandwidth (not tunable)
Gain
Outputs
Page
Receiver Multicoupler
780 234
68 – 87.5 MHz
3 dB
8
146
Receiver Multicoupler
780 235
68 – 87.5 MHz
1 dB
16
147
Receiver Multicoupler
780 232
146 – 174 MHz
3 dB
8
148
Receiver Multicoupler
780 233
146 – 174 MHz
1 dB
16
149
Receiver Multicoupler
727 621
380 – 470 MHz
3 dB
8
150
Receiver Multicoupler
727 622
380 – 470 MHz
1 dB
16
151
Gain / Input power
Inputs
Page
Active Duplex Multicouplers:
Description
Type No.
Frequency range
... tunable bandwidth
– fixed bandwidth (not tunable)
Active Duplex Multicoupler
K 60 21 41 12 A
68 ... 87.5 MHz
+1.7 dB / 2 x 10 W
2
152
Active Duplex Multicoupler
K 60 21 41 12 B
68 ... 87.5 MHz
+1.7 dB / 2 x 10 W
2
152
Active Duplex Multicoupler
K 60 21 41 A
68 ... 87.5 MHz
0 dB / 3 x 10 W
3
152
Active Duplex Multicoupler
K 60 21 41 B
68 ... 87.5 MHz
0 dB / 3 x 10 W
3
152
Active Duplex Multicoupler
K 60 21 41 14 A
68 ... 87.5 MHz
–1.3 dB / 4 x 10 W
4
152
Active Duplex Multicoupler
K 60 21 41 14 B
68 ... 87.5 MHz
–1.3 dB / 4 x 10 W
4
152
Active Duplex Multicoupler
K 60 21 41 15 A
68 ... 87.5 MHz
–2.3 dB / 5 x 10 W
5
152
Active Duplex Multicoupler
K 60 21 41 15 B
68 ... 87.5 MHz
–2.3 dB / 5 x 10 W
5
152
Active Duplex Multicoupler
K 60 21 21 12 A
146 ... 174 MHz
+1.7 dB / 2 x 10 W
2
153
Active Duplex Multicoupler
K 60 21 21 12 B
146 ... 174 MHz
+1.7 dB / 2 x 10 W
2
153
Active Duplex Multicoupler
K 60 21 21 A
146 ... 174 MHz
0 dB / 3 x 10 W
3
153
Active Duplex Multicoupler
K 60 21 21 B
146 ... 174 MHz
0 dB / 3 x 10 W
3
153
Active Duplex Multicoupler
K 60 21 21 14 A
146 ... 174 MHz
–1.3 dB / 4 x 10 W
4
153
Active Duplex Multicoupler
K 60 21 21 14 B
146 ... 174 MHz
–1.3 dB / 4 x 10 W
4
153
Active Duplex Multicoupler
K 60 21 21 15 A
146 ... 174 MHz
–2.3 dB / 5 x 10 W
5
153
Active Duplex Multicoupler
K 60 21 21 15 B
146 ... 174 MHz
–2.3 dB / 5 x 10 W
5
153
145
Receiver Multicoupler
68 – 87.5 MHz
This receiver multicoupler makes it possible
to operate up to 8 receivers simultaneously
on one common antenna. It is especially
suitable for use at base stations where
there is only limited mast space for the
receiving antennas.
The low noise level and the excellent intermodulation characteristics of the receiver
multicoupler ensure a high dynamic range.
Front side
The receiver multicoupler consists of:
– a low noise amplifier,
– a power splitter,
– a voltage supply.
The RF signals are amplified at the input of
the receiver multicoupler by an actively
redundant low noise amplifier. This means
that the receiver multicoupler will still
remain operational even if one of the parallel connected amplifier modules fails. In this
case, however, the gain will decrease by
about 6 dB.
Each amplifier module has its own voltage
supply which is so designed that the modules can be operated simultaneously with
both alternating current (230 V ~) and
direct current (11 ... 48 V =).
Rear side
Technical Data
Type No.
Number of inputs
Number of outputs
Frequency range
Gain
Noise figure
3rd order intercept point
Isolation
VSWR Input
Output
Impedance
Power supply
Power consumption
Temperature range
Connectors
Colour
Attached hardware
Weight
Packing size
Dimensions (w x h x d)
780 234
1
8
68 – 87.5 MHz
3.0 dB (+1.5 / –1.5 dB)
< 4.0 dB (+0.5 dB)
> 23 dBm (typ. 25 dBm)
> 25 dB (typ. 30 dB) between any two outputs
< 1.4
< 1.4
50 Ω
230 V ~ (+10 / –15 %), 50 … 60 Hz and/or
11 … 48 V =, floating
< 9 W (230 V ~, 50 Hz)
< 20 W (11 … 48 V =)
–20 … +55 °C
N female
Front panel: Grey (RAL 7032)
Power cable and 4 pin DC connector
3.9 kg
560 mm x 105 mm x 385 mm
483 mm x 44 mm x 280 mm, 19˝ drawer
Note: Not used outputs have to be terminated using a 50-Ω load in order to
comply with the specifications.
146
Receiver Multicoupler
68 – 87.5 MHz
This receiver multicoupler makes it possible
to operate up to 16 receivers simultaneously on one common antenna. It is especially
suitable for use at base stations where
there is only limited mast space for the
receiving antennas.
The low noise level and the excellent intermodulation characteristics of the receiver
multicoupler ensure a high dynamic range.
The receiver multicoupler consists of:
– a low noise amplifier,
– a power splitter,
– a voltage supply.
Front side
The RF signals are amplified at the input of
the receiver multicoupler by an actively
redundant low noise amplifier. This means
that the receiver multicoupler will still
remain operational even if one of the parallel connected amplifier modules fails. In this
case, however, the gain will decrease by
about 6 dB.
Each amplifier module has its own voltage
supply which is so designed that the modules can be operated simultaneously with
both alternating current (230 V ~) and
direct current (11 ... 48 V =).
Rear side
Technical Data
Type No.
Number of inputs
Number of outputs
Frequency range
Gain
Noise figure
3rd order intercept point
Isolation
VSWR Input
Output
Impedance
Power supply
Power consumption
Temperature range
Connectors
Colour
Attached hardware
Weight
Packing size
Dimensions (w x h x d)
780 235
1
16
68 – 87.5 MHz
1.0 dB (+1.5 / –1.5 dB)
< 4.5 dB (+0.5 dB)
> 20 dBm (typ. 22 dBm)
> 25 dB (typ. 30 dB) between any two outputs
< 1.4
< 1.4
50 Ω
230 V ~ (+10 / –15 %), 50 … 60 Hz and/or
11 … 48 V =, floating
< 9 W (230 V ~, 50 Hz)
< 20 W (11 … 48 V =)
–20 … +55 °C
N female
Front panel: Grey (RAL 7032)
Power cable and 4 pin DC connector
5.9 kg
560 mm x 115 mm x 385 mm
483 mm x 88 mm x 280 mm, 19˝ drawer
Note: Not used outputs have to be terminated using a 50-Ω load in order to
comply with the specifications.
147
Receiver Multicoupler
146 – 174 MHz
This receiver multicoupler makes it possible
to operate up to 8 receivers simultaneously
on one common antenna. It is especially
suitable for use at base stations where
there is only limited mast space for the receiving antennas.
The low noise level and the excellent intermodulation characteristics of the receiver
multicoupler ensure a high dynamic range.
Front side
The receiver multicoupler consists of:
– a low noise amplifier,
– a power splitter,
– a voltage supply.
The RF signals are amplified at the input
of the receiver multicoupler by an actively
redundant low noise amplifier. This means
that the receiver multicoupler will still remain operational even if one of the parallel
connected amplifier modules fails. In this
case, however, the gain will decrease by
about 6 dB.
Each amplifier module has its own voltage
supply which is so designed that the modules can be operated simultaneously with
both alternating current (230 V ~) and
direct current (11 ... 48 V =).
Rear side
Technical Data
Type No.
Number of inputs
Number of outputs
Frequency range
Gain
Noise figure
3rd order intercept point
Isolation
VSWR Input
VSWR Output
Impedance
Power supply
Power consumption
Temperature range
Connectors
Colour
Attached hardware
Weight
Packing size
Dimensions (w x h x d)
780 232
1
8
146 – 174 MHz
3.0 dB (+1.5 / –1.5 dB)
< 4.0 dB (+0.5 dB)
> 23 dBm (typ. 25 dBm)
> 25 dB (typ. 30 dB) between any two outputs
< 1.4
< 1.4
50 Ω
230 V ~ (+10 / –15 %), 50 … 60 Hz and/or
11 … 48 V =, floating
< 9 W (230 V ~, 50 Hz)
< 20 W (11 … 48 V =)
–20 … +55 °C
N female
Front panel: Grey (RAL 7032)
Power cable and 4 pin DC connector
3.9 kg
560 mm x 105 mm x 385 mm
483 mm x 44 mm x 280 mm, 19˝ drawer
Note: Not used outputs have to be terminated using a 50-Ω load in order to
comply with the specifications.
148
Receiver Multicoupler
146 – 174 MHz
This receiver multicoupler makes it possible
to operate up to 16 receivers simultaneously on one common antenna. It is especially
suitable for use at base stations where
there is only limited mast space for the
receiving antennas.
The low noise level and the excellent intermodulation characteristics of the receiver
multicoupler ensure a high dynamic range.
The receiver multicoupler consists of:
– a low noise amplifier,
– a power splitter,
– a voltage supply.
Front side
The RF signals are amplified at the input
of the receiver multicoupler by an actively
redundant low noise amplifier. This means
that the receiver multicoupler will still remain operational even if one of the parallel
connected amplifier modules fails. In this
case, however, the gain will decrease by
about 6 dB.
Each amplifier module has its own voltage
supply which is so designed that the modules can be operated simultaneously with
both alternating current (230 V ~) and
direct current (11 ... 48 V =).
Rear side
Technical Data
Type No.
Number of inputs
Number of outputs
Frequency range
Gain
Noise figure
3rd order intercept point
Isolation
VSWR Input
VSWR Output
Impedance
Power supply
Power consumption
Temperature range
Connectors
Colour
Attached hardware
Weight
Packing size
Dimensions (w x h x d)
780 233
1
16
146 – 174 MHz
1.0 dB (+1.5 / –1.5 dB)
< 4.5 dB (+0.5 dB)
> 20 dBm (typ. 22 dBm)
> 25 dB (typ. 30 dB) between any two outputs
< 1.4
< 1.4
50 Ω
230 V ~ (+10 / –15 %), 50 … 60 Hz and/or
11 … 48 V =, floating
< 9 W (230 V ~, 50 Hz)
< 20 W (11 … 48 V =)
–20 … +55 °C
N female
Front panel: Grey (RAL 7032)
Power cable and 4 pin DC connector
5.9 kg
560 mm x 115 mm x 385 mm
483 mm x 88 mm x 280 mm, 19˝ drawer
Note: Not used outputs have to be terminated using a 50-Ω load in order to
comply with the specifications.
149
Receiver Multicoupler
380 – 470 MHz
This receiver multicoupler makes it possible to
operate up to 8 receivers simultaneously on one
common antenna. It is especially suitable for use
at base stations where there is only limited mast
space for the receiving antennas.
The low noise level and the excellent intermodulation characteristics of the receiver multicoupler
ensure a high dynamic range.
Front side
The receiver multicoupler consists of:
– a low-noise amplifier,
– a power splitter,
– a voltage supply.
The HF signals are amplified at the input of the
receiver multicoupler by an actively redundant lownoise amplifier. This means that the receiver multicoupler will still remain operational even if one of
the parallel connected amplifier modules fails. In
this case, however, the amplification will decrease
by about 6 dB.
Each amplifier module has its own voltage supply
which is so designed that the modules can be operated simultaneously with both alternating current
(230 V) and direct current ( +11 ... +48 DC).
Technical Data
Type No.
Number of inputs
Number of outputs
Frequency range
Gain
Noise figure
3rd order intercept point
Isolation
VSWR
Input
Output
Impedance
Power Supply
Power Consumption
Temperature range
Connectors
Colour
Attached hardware
Weight
Packing size
Dimensions (w x h x d)
727 621
1
8
380 – 470 MHz
Special tuning is possible
in the range of 350 to 550 MHz
3 dB +1.5 / –1.5 dB
< 3.5 dB +0.5 / –1 dB
> 16 dBm (typ. 19 dBm)
> 25 dB (typ. 30 dB) between any two outputs
< 1.4
< 1.4
50 Ω
230 V +10 / –15 %, 50 … 60 Hz and/or
+11 … +48 V DC, minus grounded
< 9 W (230 V, 50 Hz)
< 20 W (+11 … +48 V DC)
–20 … +50 °C
N female
Front panel: Grey (RAL 7032)
Power cable and 4 pin DC connector
4.0 kg
560 mm x 105 mm x 385 mm
483 mm x 44 mm x 280 mm, 19˝ drawer
Note: Not used outputs have to be terminated using a 50-Ω load in order to
comply with the specifications.
150
Rear side
Receiver Multicoupler
380 – 470 MHz
This receiver multicoupler makes it possible to
operate up to 16 receivers simultaneously on one
common antenna. It is especially suitable for use
at base stations where there is only limited mast
space for the receiving antennas.
The low noise level and the excellent intermodulation characteristics of the receiver multicoupler
ensure a high dynamic range.
The receiver multicoupler consists of:
– a low-noise amplifier,
– a power splitter,
– a voltage supply.
Front side
The HF signals are amplified at the input of the
receiver multicoupler by an actively redundant
low-noise amplifier. This means that the receiver
multicoupler will still remain operational even if one
of the parallel connected amplifier modules fails.
In this case, however, the amplification will decrease by about 6 dB.
Each amplifier module has its own voltage supply
which is so designed that the modules can be operated simultaneously with both alternating current
(230 V) and direct current ( +11 ... +48 DC).
Rear side
Technical Data
Type No.
Number of Inputs
Number of Outputs
Frequency range
Gain
Noise figure
3rd order intercept point
Isolation
VSWR
Input
Output
Impedance
Power Supply
Power Consumption
Temperature range
Connectors
Colour
Attached hardware
Weight
Packing size
Dimensions (w x h x d)
727 622
1
16
380 – 470 MHz
Special tuning is possible
in the range of 350 to 550 MHz
1 dB +1.5 / –1.5 dB
< 4.3 dB +0.5 / –1 dB
> 12 dBm (typ. 16 dBm)
> 25 dB (typ. 30 dB) between any two outputs
< 1.4
< 1.4
50 Ω
230 V +10 / –15 %, 50 … 60 Hz and/or
+11 … +48 V DC, minus grounded
< 9 W (230 V, 50 Hz)
< 20 W (+11 … +48 V DC)
–20 … +55 °C
N female
Front panel: Grey (RAL 7032)
Power cable and 4 pin DC connector
5.9 kg
560 mm x 115 mm x 435 mm
483 mm x 88 mm x 280 mm, 19˝ drawer
Note: Not used outputs have to be terminated using a 50-Ω load in order to
comply with the specifications.
151
Active Duplex Multicoupler
68 ... 87.5 MHz
The active duplex multicoupler
allows the simultaneous operation
of up to five full duplex transceivers
on a common antenna. It is especially suited for expanding existing
radio sites where no mast space is
available for additional antennas.
For new radio sites the use of the
active duplex multicoupler can
reduce the cost of masts and
antennas.
Operation, tuning, maintenance:
Simple operation without any adjustment. The frequency channels
can be arbitrarily varied down to
the lowest possible channel spacing within the specified bandwidth.
The active transmitter multicoupler
can easily be put into operation by
connecting the power supply, the
antenna, the transmitters and turning on the units.
The operating mode (transmission
in the “high band“ or in the “low
band“) is set at the factory. All
transceivers connected to the active duplex multicoupler have to be
switched to the corresponding operating mode. Protective circuitry
prevents inadvertent switching to
the impermissible mode.
Not used RF input connectors need
not be terminated due to the high
isolation between the inputs of the
active duplex multicoupler.
Interferences on one channel do
not affect the other channels,
because each transmitter input has
its own power amplifier and its own
voltage supply. Due to the built-in
reliability of the fanless convection
cooling the active duplex multicouplers requires no maintenance.
Ordering:
Please specify the type number as
well as the operating mode (transmission in the “high band“ or “low
band“).
For custom versions please specify
the duplex spacing, the bandwidth
and its position in the frequency
band from 68 – 87.5 MHz.
152
Duplexer
Active Transmitter
Multicoupler
Receiver Multicoupler
Duplexer
Duplexer
Duplexer
Transceiver
Transceiver
Transceiver
K 60 21 41 14
Receiver
Receiver
Technical Data
Type No.
Transmission in the high band K 60 21 41 12 A
Transmission in the low band K 60 21 41 12 B
Number of inputs
Frequency range
High band
Low band
Duplex spacing
Switching bandwidth
Input power
Output power
Gain
(at rated input power)
Operation mode
2
K 60 21 41 A
K 60 21 41 B
3
K 60 21 41 14 A
K 60 21 41 14 B
K 60 21 41 15 A
K 60 21 41 15 B
4
5
68 ... 87.5 MHz
84.015 – 87.455 MHz
74.215 – 77.655 MHz
9.8 MHz
3.4 MHz
2 x 10 W
3 x 10 W
4 x 10 W
5 x 10 W
2 x 15 W
3 x 10 W
4 x 7,5 W
5x6W
+1.7 dB
0 dB
–1.3 dB
–2.3 dB
(+1/–0.5 dB)
(+1/–0.5 dB)
(+1/–0.5 dB)
(+1/–0.5 dB)
Transmission in the “high band“ respectivly in the “low band“ the
same for all channels (factory-set after customers requirement)
Gain in the receive path
1 dB (+2 / –0.5 dB)
Harmonic suppression
> 75 dB
Intermodulation suppression
> 65 dB
VSWR
< 1.4
Impedance
50 Ω
Power supply
230 V ~ (+10 / –15 %), 47 – 53 Hz
(additional +27 V =, minus grounded)
other supply voltages upon request
Power consumption during
receive mode only
at 230 V ~
40 W
50W
60 W
70 W
at 27 V =
20 W
20 W
20 W
20 W
Power consumption during
full transmit and receive
mode
at 230 V ~
450 W
650 W
850 W
1050 W
at 27 V =
270 W
400 W
540 W
670 W
Temperature range
–20 ... +50 °C
Connectors
N female
Colour
Grey (RAL7032)
Housing
19” rack
Weight
60 kg
72 kg
86 kg
97 kg
Packing size (by mm)
700 x 850 x 700 700 x 980 x 700 700 x 1100 x 700 700 x 1250 x 700
Dimensions (w x h x d, by mm) 555 x 595 x 563 555 x 728 x 563 555 x 862 x 563
555 x 995 x 563
Active Duplex Multicoupler
146 ... 174 MHz
The active duplex multicoupler
allows the simultaneous operation
of up to five full duplex transceivers
on a common antenna. It is especially suited for expanding existing
radio sites where no mast space is
available for additional antennas.
For new radio sites the use of the
active duplex multicoupler can
reduce the cost of masts and
antennas.
Operation, tuning, maintenance:
Simple operation without any adjustment. The frequency channels
can be arbitrarily varied down to
the lowest possible channel spacing within the specified bandwidth.
The active transmitter multicoupler
can easily be put into operation by
connecting the power supply, the
antenna, the transmitters and turning on the units.
The operating mode (transmission
in the “high band“ or in the “low
band“) is set at the factory. All
transceivers connected to the active duplex multicoupler have to be
switched to the corresponding operating mode. Protective circuitry
prevents inadvertent switching to
the impermissible mode.
Not used RF input connectors need
not be terminated due to the high
isolation between the inputs of the
active duplex multicoupler.
Interferences on one channel do
not affect the other channels,
because each transmitter input has
its own power amplifier and its own
voltage supply. Due to the built-in
reliability of the fanless convection
cooling the active duplex multicouplers requires no maintenance.
Ordering:
Please specify the type number as
well as the operating mode (transmission in the “high band“ or “low
band“).
For custom versions please specify
the duplex spacing, the bandwidth
and its position in the frequency
band from 146 – 174 MHz.
Duplexer
Active Transmitter
Multicoupler
Receiver Multicoupler
Duplexer
Duplexer
Duplexer
Transceiver
Transceiver
Transceiver
K 60 21 21 14
Receiver
Receiver
Technical Data
Type No.
Transmission in the high band K 60 21 21 12 A
Transmission in the low band K 60 21 21 12 B
Number of inputs
Frequency range
High band
Low band
Duplex spacing
Switching bandwidth
Input power
Output power
Gain
(at rated input power)
Operation mode
K 60 21 21 A
K 60 21 21 B
K 60 21 21 14 A
K 60 21 21 14 B
K 60 21 21 15 A
K 60 21 21 15 B
2
3
4
5
146 ... 174 MHz
172.14 – 174.12 MHz
167.54 – 169.52 MHz
4.6 MHz
2.0 MHz
2 x 10 W
3 x 10 W
4 x 10 W
5 x 10 W
2 x 15 W
3 x 10 W
4 x 7.5 W
5x6W
+1.7 dB
0 dB
-1.3 dB
-2.3 dB
(+1/–0.5 dB)
(+1/–0.5 dB)
(+1/–0.5 dB)
(+1/–0.5 dB)
Transmission in the “high band“ respectivly in the “low band“ the
same for all channels (factory-set after customers requirement)
Gain in the receive path
1 dB (+2 / –0.5 dB)
Harmonic suppression
> 75 dB
Intermodulation suppression
> 65 dB
VSWR
< 1.4
Impedance
50 Ω
Power supply
230 V ~ (+10 / –15 %), 47 – 53 Hz
(additional +27 V =, minus grounded)
other supply voltages upon request
Power consumption during
receive mode only
at 230 V ~
40 W
50W
60 W
70 W
at 27 V =
20 W
20 W
20 W
20 W
Power consumption during
full transmit and
receive mode
at 230 V ~
450 W
650 W
850 W
1050 W
at 27 V =
270 W
400 W
540 W
670 W
Temperature range
–20 ... +50 °C
Connectors
N female
Colour
Grey (RAL7032)
Housing
19” rack
Weight
60 kg
72 kg
86 kg
97 kg
Packing size (by mm)
700 x 850 x 700 700 x 980 x 700 700 x 1100 x 700 700 x 1250 x 700
Dimensions (w x h x d, by mm) 555 x 595 x 563 555 x 728 x 563 555 x 862 x 563 555 x 995 x 563
153
154
Combiner Systems
Combiner Systems
155
Combiner Systems
Besides our standard versions we also manufacture
many custom versions and combiner systems, which
we adapt to your requirements or special operating
conditions.
156
Combiner Systems
Example
Combiner system for mobile communication coverage in a large road tunnel
for public authorities, emergency services, professional mobile radio, FM radio
and mobile telephones
Frequency ranges: 68 – 88 MHz,
88 – 108 MHz, 450 – 470 MHz
For combining 8 FM transmitters, whose
signals are amplified from 10 mW to 100 W,
with further transceiver units of other
frequency bands. Distribution to 12 feeder
points within the tunnels.
MBC
DS
3C
D
BP
SP
↑
=
=
=
=
=
=
=
=
Tx/Rx =
Tx
=
Rx
=
Multi-band combiner
Decoupled power splitter
3-dB coupler
Duplexer
Band-pass filter
S-P filter
Isolator
Power amplifier
Tansceiver unit
Tansmitter unit
Receiver unit
12 x Radiating cables
DS
DS
3C
MBC
MBC
MBC
MBC
DS
DS
3C
MBC
DS
DS
3C
3C
3C
D
Tx
T
MBC
R Tx/Rx
Rx
80 MHz
8 FM Transmitters
(88 – 108 MHz)
Tx/Rx
450 MHz
157
Combiner Systems
Example
Active Duplex Multicoupler for a police
communication network
Frequency range: 74 – 88 MHz
For combining of 4 transceiver units to one
common antenna. Consisting of an active
transmitter multicoupler and a receiver multicoupler in order to aviod insertion loss.
D
ATM
RMC
Tx/Tx
= Duplexer
= Active transmitter multicoupler
= Receiver multicoupler
= Transceiver units
Transceiver units
158
Combiner Systems
Example
Combiner network for mobile communication coverage in tunnels for public
authorities, emergency services, FM radio, paging systems and mobile telephones
Frequency ranges:
75 – 85 MHz, 88 – 108 MHz, 170 MHz,
380 – 470 MHz, 870 – 960 MHz
For combining several transmitters and / or
receivers of different frequency bands onto
one radiating cable each.
MBC
3C
RJ
DS
RMC
=
=
=
=
=
Multiband combiner
3-dB coupler
Hybrid ring junction
Decoupled power splitter
Receiver multicoupler
Radiating cable 1
Radiating cable 2
MBC
MBC
MBC
MBC
MBC
3C
DS
DS
RMC
RMC
RMC
RJ
FM
Transmitters
Receivers
159
Combiner Systems
Example
Combiner system for mobile communication coverage in tunnels for public
authorities, emergency services and railway
services, e. g. for suburban railways
Frequency range: 80 MHz, 150 MHz, 450 MHz
For combining several transceiver units (simplex and duplex) of different frequency bands
and splitting to six radiating cables and additionally two antennas (at 80 MHz), including
remote-control monitoring.
MBC
MU
D
DS
RJ
10 C
=
=
=
=
=
=
=
=
Multiband combiner
Measurement unit
Duplexer
Decoupled splitter
Hybrid ring junction
10-dB coupler
Receiver amplifier
Power amplifier
6 x Radiating cable
cables
MBC
MBC
MU
MBC
MBC
MBC
MBC
MU
D
DU
DS
DPS
DS
DPS
DS
DPS
DS
DPS
RJ
RJ
DS
DPS
DS
DPS
RJ
DS
DPS
DS
DPS
RJ
D
10 C
10 C
D
RJ
Antenna 1/2
160
D
D
Transceiver unit
(duplex)
2 Transceiver units
(simplex)
D
Transceiver unit
(duplex)
Combiner Systems
Example
Combiner system for a mobile communication network for motor-racing vehicles
Frequency range: 146 – 174 MHz
For combining 4 simplex transceivers with
variable frequencies onto one common
antenna.
D
= Duplexer
SP
= S-P filter
Tx/Rx = Transceiver unit
Antenna
D
Tx/Rx 1
D
Tx/Rx 2
Tx/Rx 3
Tx/Rx 4
161
Combiner Systems
Example
Combiner system for the mobile communication network of a public transport
company (e. g. underground railway) for
professional mobile radio, public authorities and emergency services
Frequency range: 148 – 173 MHz
For combining several transceiver units
(simplex and duplex) with minimal frequency
spacing and splitting to two radiating cables.
3C
D
BP
SP
↑
Tx/Rx
Tx
Rx
=
=
=
=
=
=
=
=
3-dB coupler
Duplexer
Band-pass filter
S-P filter
Isolator
Transceiver unit
Transmitter unit
Receiver unit
Radiating
cable 1
Radiating
cable 2
3C
D
Tx/Rx 1
162
Rx 5
Tx 5
(duplex) (duplex)
Tx/Rx 2 Tx/Rx 3
Rx 6
(duplex)
Tx/Rx 4
(duplex)
Tx 6
(duplex)
Combiner Systems
Example
Combiner system for coverage in a tunnel
Frequency ranges: 148 – 173 MHz
and 458 MHz
For combining several transmitters and/or
receivers (duplex/simplex) with minimal frequency spacing and splitting to five radiating
cables.
MBC =
3C =
10 C =
DS =
BP
=
Tx/Rx =
Tx
=
Rx
=
Multiband combiner
3-dB coupler
10-dB coupler
Decoupled splitter
Band-pass filter
Transceiver unit
Transmitter unit
Receiver unit
Radiating cable 1
Radiating cable 2
Radiating cable 3
MBC
MBC
MBC
Radiating cable 4
MBC
3C
3C
3C
3C
Radiating cable 5
MBC
10 C
DS
Tx/Rx 1
458 MHz
Tx/Rx 2
Tx/Rx 3 Tx/Rx 4
Rx 5
Rx 6
(duplex) (duplex)
Tx 5
(duplex)
Tx 6
(duplex)
163
Combiner Systems
Example
Active combiner system for a common
data and voice communication network
Frequency range: 148 – 156 MHz
For combining several duplex and simplex
channels to one common antenna.
The duplex channels are combined on the
transmitting side via an active transmitter
multicoupler and on the receiving side via
a receiver multicoupler, in order to reduce
insertion loss.
BP
SP
RMC
ATM
Tx/Rx
=
=
=
=
=
Band-pass filter
S-P filter
Receiver multicoupler
Active transmitter multicoupler
Transceiver unit
Antenna
RMC
Tx/Rx 1
164
Tx/Rx 2
Receiver
(duplex)
ATM
Transmitter
(duplex)
Combiner Systems
Example
Combiner system for a mobile communication network of a public transport company
Frequency range: 148 – 165 MHz
For combining several transceivers (simplex
and duplex) with minimal frequency spacing
onto two base-station antennas.
BP
=
SP
=
D
=
↑
=
Tx/Rx =
Band-pass filter
S-P filter
Duplexer
Isolator
Transceiver unit
Antenna 2
Antenna 1
D
Tx/Rx 1
Tx/Rx 2
(duplex)
Tx/Rx 3
Tx/Rx 4
D
D
Tx/Rx 5
(duplex)
Tx/Rx 6
(duplex)
165
Combiner Systems
Example
Combiner system for the mobile communication network of an underground railway public transport company.
This network is used for data and voice
communication.
Frequency range: 149 – 156 MHz
For combining one simplex transceiver with
one duplex transceiver onto one common
antenna.
D
SP
Tx/Rx
Tx
Rx
=
=
=
=
=
Duplexer
S-P filter
Transceiver unit
Transmitter unit
Receiver unit
Antenna
D
SP
SP
SP
SP
Tx/Rx 1
Rx 2
(duplex)
166
Tx 2
(duplex)
Combiner Systems
Example
Combiner system for the synchronized
radio network of a public transport company
Frequency range: 149 – 156 MHz
For combining of several transceiving units
(simplex and duplex) with minimal frequency
spacing onto one base station antenna.
BP
SP
Tx/Rx
Tx
Rx
=
=
=
=
=
Band-pass filter
S-P filter
Transceiver unit
Transmitter unit
Receiver unit
Antenna
Tx/Rx 1
Rx 2
(duplex)
Tx/Rx 3
Tx/Rx 4
Tx 2
(duplex)
167
Combiner Systems
Example
Combiner system for a mobile communication network of a public transport company for data and voice communication
Frequency range: 149 – 156 MHz
For combining several transceiver units
(simplex and duplex) with minimal frequency
spacing onto one base-station antenna.
BP
SP
RJ
↑
Tx/Rx
Tx
Rx
=
=
=
=
=
=
=
Band-pass filter
S-P filter
Hybrid ring junction
Isolator
Transceiver unit
Transmitter unit
Receiver unit
Antenna
RJ
Tx/Rx 1
168
Tx 2
RJ
Tx 3
Tx/Rx 4
Rx 2
Rx 3
Combiner Systems
Example
Combiner system for mobile communication coverage in a railway station for
professional mobile radio, public authorities and emergency services
Frequency range: 151 – 174 MHz
For combining several transceivers (duplex
and simplex) with minimal frequency spacing and distributing them onto 4 antennas.
3C
D
BP
SP
Tx/Rx
Tx
Rx
=
=
=
=
=
=
=
3-dB coupler
Duplexer
Band-pass filter
S-P filter
Transceiver unit
Transmitter unit
Receiver unit
Antenna 2
Antenna 1
Antenna 4
Antenna 3
3C
3C
3C
3C
D
Tx/Rx 1
Tx/Rx 2
Tx/Rx 3
Tx/Rx 4
Tx 5
Rx 5
169
Combiner Systems
Example
Combiner system for a mobile communication network for security services
Frequency range: 158 – 169 MHz
For combining several duplex transceiving
units, whereby one frequency pair is operated in exchanged band position.
BP =
RJ =
RMC =
↑
=
Band-pass filter
Hybrid ring junction
Receiver multicoupler
Isolator
Receiving antenna
Transmitting antenna 1
Transmitting antenna 2
RJ
RJ
RJ
RJ
RJ
RMC
Receivers
170
Transmitters
Transmitters
RJ
Combiner Systems
Example
Combiner system for an ERMES paging
network and one further paging system
Frequency range: 169 – 173 MHz
For combining two transmitters to one common antenna.
BP = Band-pass filter
Tx = Transmitter unit
Antenna
Tx 1
Tx 2
171
Combiner Systems
Example
Combiner system for a police mobile communication TETRA network
Frequency range 380 – 385 / 390 – 395 MHz
For combining eight transceivers with TETRA
frequencies onto one common antenna.
3DB = 3-dB coupler
BP
= Band-pass filter
HTC = Hybrid transmitter combiner
RMC = Receiver multicoupler
DU = Duplexer
Tx/Rx = Transceiver unit
172
Combiner Systems
Example
Combiner system for a mobile communication
network of a railway station
Frequency range 410 … 420 MHz
For combining of several receiving/transmitting
units (simplex) to four antennas.
BP = Band-pass filter
SP = S-P filter
Antenna 1
Antenna 2
Antenna 3
Antenna 4
Transmitter / Receiver units
(simplex)
173
Combiner Systems
Example
Combiner system for trunking system base stations
Frequency range 410 … 430 MHz
For combining of 8 transmitters and 8 receivers each to
one common transmitting/receiving antenna.
DU
MU
BP
RMC
FTC
↑
=
=
=
=
=
=
Duplexer
Measuring unit
Band-pass filter
Receiver multicoupler
Filter transmitter combiner
Isolator
Antenna
MU
DU
FTC
RMC
Transmitters
174
Receivers
Combiner Systems
Example
Combiner system for police base stations
Frequency range 450 … 460 MHz
Combining of several transmitting/receiving
units (simplex and duplex) to one transmitting
(Tx) antenna each and one receiving (Rx)
antenna each
3DBA
BP
SP
↑
=
=
=
=
3-dB coupler with cable absorber
Band-pass filter
S-P filter
Isolator
Tx Antenna
Rx Antenna
3DBA
3DBA
Transmitters
Receivers
175
Combiner Systems
Example
Service radio for governmental and emergency
Frequency range: 450 – 465 MHz
For combining of 4 transmitters and 4 receivers
each to one common Tx/Rx-antenna.
D
DS
RMC
↑
Tx
Rx
176
= Duplexer
= Decoupled power splitter
= Receiver multicoupler
= Isolator
= Transmitter
= Receiver
Note
177
Note
178
Note
179
Subject to alteration.
9987.212/0905/3/ZWT/HA
Internet: http://www.kathrein.de
KATHREIN-Werke KG . Phone +49 8031 184-0 . Fax +49 8031 184-494
Anton-Kathrein-Straße 1 – 3 . P.O. Box 10 04 44 . 83004 Rosenheim . Germany
Antennen . Electronic
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