Triax distribution amplifiers
Triax distribution amplifiers
HEF amplifiers – Reliable, flexible for large multi-dwelling houses
s ROB – “Return Path on Board” without any external modules or pads means more
flexibility and lower efforts in installation and logistics
s Jumper matrixes to switch the fix elements for attenuation/equalization and to
select return path or VHF I operation increase the reliability and reduce the logistics
s High gain at the return path meets also special requirements in multimedia networks
s For SMATV HEF 845 without return path and with spin
„Jumper-matrix“
potentiometers instead of jumper matrixes.
for combining the actuators for
attenuation and equalization
Examples:
0 dB
HEF amplifier housing
4 dB
6
12
6
12
2
4
2
4
0/3/5 dB
14 dB
6
12
„ein“
2
4
„0 dB“
L
L
Technical data on HEF series
Type
Art. No.
Frequency range
selected: VHF I “on”, RP “off”
selected: VHF I “off”, RP “on”
Gain forward
Gain @ 862 MHz
Attenuator at input (2 dB steps)
Attenuator elements interstage
Gain return path
Gain @ 60 MHz
Attenuator elements at input
Attenuator elements at output
Amplitude response forward
40...862 MHz (VHF I: on)
Line equalizer at input
Line equalizer (2...3 dB steps)
Slope interstage
Amplitude response return path 5...60 MHz
Equalizer element interstage
Random noise
Forward (VHF I „on“)
Return path (VHF I „off“)
Return loss @ 40 MHz, -1.5 dB/octave
Output level forward
IMD2/ IMD3 ≥ 60 dB
CSO ≥ 60 dB, 42 ch. Slope 0/7 dB
CTB ≥ 60 dB, 42 ch. Slope 0/7 dB
Output level return path
IMD2/ IMD3 ≥ 60 dB
RF connectors (75 Ohm)
Input
Output
Test point input: bi-directional
Test point output: directional
Operating conditions
Max. RF level (EMC)
Supply voltage (50-60 Hz)
(DC)
Power consumption
Operating temperature
Protection class
Housing protection degree
Dimensions W x H x D
Weight
Packing unit
Reference standards
Product standards/safety/EMC
RoHS 2002/95/EG compliant
MHz
MHz
dB
dB
dB
HEF 845
323068
HEF 845 C
323071
HEF 845 CL
323074
40-862
40-862/85-862
5-65
40-862/85-862
5-65
36
0-20 (pot)
0/6
36
0-16
0/6
36
0-16
0/6
27
0-6/50
0/3/6/9
27
0-6/50
0/3/6/9
1.0
1.0
0-16
0/7
1.0
0/3/6
0-16
0/7
1.0
0/3/6
> 14
5.5
5.5
> 14
5.5
5.5
> 14
114/123
109/111
108/110
114/123
109/111
108/110
114/123
109/108
111/110
104/115
104/115
-20 (bi-dir)
F-female
F-female
-20
-20
F-female
F-female
-20
-20
113
180-253
113
180-253
113
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dBµV
dBµV
dBµV
0-18 (pot)
0/7
5.0
dBµV
F-female
F-female
dB
dB
dBµV
V
W
°C
IP
mm
kg
6
-25...+55
II, Protective
65
190 x 110 x 80
2
1 pcs. carton box
25-65
9
9
-25...+55
-25...+55
II, Protective
II, Protective
65
65
190 x 110 x 80
190 x 110 x 80
2
2
1 pcs. carton box 1 pcs. carton box
EN 50083-3 - Class 2 / EN 50083-1; EN 60065 / EN 50083-2
Yes
157
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