Dual-Band Combiner

Dual-Band Combiner
698 – 806 MHz
824 – 960 MHz
AUTOSENSE
• Designed for co-siting purposes
• Enables feeder sharing
• Integrated auto-sense technology for automatic DC / AISG
detection and bypass functionality.
Combine Mode (near BTS):
In combine mode, the auto-sense combiner has the ability
to operate in three different functions. These functions
define the prioritisation of the DC input signals (more details
on next page):
1. First In - First Out Function (Factory default setting)
2. Priority Controlled Function
3. Exclusive User Function
Split Mode (near antenna):
In split mode, the auto-sense combiner automatically
detects connected Antenna Line Devices and bypasses or
stops the DC / AISG signal accordingly.
A detailed manual about Auto-Sense technology can be
downloaded on our homepage.
• Suitable for indoor or outdoor applications
• Wall or mast mounting
• Available as a single unit, or for XPol antennas as a double
unit
• Built-in lightning protection
• Low insertion loss
• High input power
Technical Data
78211287
Type No.
Single Unit
Pass band
Band 1 Band 2 [MHz]
[MHz]
Insertion loss
Port 1 ↔ Port 3 Port 2 ↔ Port 3
[dB]
[dB]
Isolation
Port 1 ↔ Port 2 [dB]
VSWR
ps
clam d
e
d
lu
inc
78211288
Double Unit
698 – 806
824 – 960
< 0.3 (698 – 796 MHz); < 0.5 (796 – 806 MHz)
< 0.5 (824 – 834 MHz); < 0.3 (834 – 960 MHz)
> 50
< 1.2 (698 – 806 MHz / 824 – 960 MHz)
Impedance [Ω]
Input power
Band 1 / Band 2 50
< 500 / < 500
936.5358/a
Subject to alteration.
[W]
Intermodulation products Temperature range [dBc]
[°C | °F]
< −160 (3rd order; with 2 x 20 W)
−40 ... +60 | −40 ... +140
Connectors
7-16 female (long neck)
Application
Indoor or outdoor (IP 66)
DC/AISG transparency
Port 1 ↔ Port 3 Port 2 ↔ Port 3 Lightning protection
Mounting Weight [mA]
[mA]
[kA]
[mm | in]
Auto-sense (max. 2000)
Auto-sense (max. 2000)
3, 10/350 µs pulse
Wall mounting: With 4 screws (max. 8 | 0.315 diameter)
Mast mounting: With included clamp set
[kg | lb]
Single Unit: 2.5 | 5.51 / Double Unit: 5.0 | 11.02
Packing size
[mm | in]
Single unit: 365 x 235 x 145 | 14.37 x 9.25 x 5.71 / Double unit: 365 x 235 x 210 | 14.37 x 9.25 x 8.27
Dimensions (w x h x d)
[mm | in]
Single Unit: 153 x 170.5 x 80.5 | 6.02 x 6.71 x 3.17 / Double Unit: 153 x 170.5 x 165.5 | 6.02 x 6.71 x 6.52
(without connectors, without mounting brackets)
78211287, 78211288 Page 1 of 3
www.kathrein.com
KATHREIN-Werke KG · Anton-Kathrein-Straße 1-3 · P.O. Box 10 04 44 · 83004 ROSENHEIM · GERMANY · Phone +49 8031 184-0 · Fax +49 8031 184-820
Dual-Band Combiner
698 – 806 MHz
824 – 960 MHz
Accessories (included)
Type No.
734365 [mm | in]
Clamp set suitable for
mast diameter of
Clamp Set
45 – 125 | 1.77 – 4.92
Accessories (order separately)
Type No.
Description
78410367
50-Ohm load
50-Ohm load
Auto-Sense Combiner Functions for the Interconnection
of Different Base Stations (Installation Close to the Base
Station – Combine Mode)
First In - First Out Function (Factory Default Setting)
If the First In – First Out function is set, then the first base
Station (BTS) which supplies the auto-sense combiner with
DC voltage at any input port is bypassed to the common
port. The DC from further base stations will be ignored.
Priority Controlled Function
If the priority controlled function shall be used, a corresponding priority table is set ex-factory which needs to be
defined by the customer when ordering. One example of a
priorisation table is shown below. In case DC / AISG signals
are applied to two or more input ports simultaneously, the
BTS with the higher priority will be bypassed to the common port. Any DC signal from a lower prioritised input port
will not be bypassed. If the port with the highest priority is
not supplied with a DC signal, the DC signal from the BTS
with the next lower priority will be connected through to the
common port.
Port 1
B (lowest)
Port 2
A (highest)
Exclusive User Function
If the Exclusive User function is set in the combiner, then
the first base station which supplies an appropriate DC
voltage at any input port is bypassed to the common port.
If a second DC/AISG signal is erroneously fed into the combiner, then none of the DC/AISG signals will be allowed to
bypass to the common port.
Please note: If the combiner is mounted near the antenna
(split mode), the behaviour is independent of any of the
prioritisation functions described above. In this mode, the
auto-sense combiner automatically detects Antenna Line
Devices at the output ports and bypasses or blocks the DC/
AISG signal at each port accordingly.
Page 2 of 3 78211287, 78211288
www.kathrein.com
KATHREIN-Werke KG · Anton-Kathrein-Straße 1-3 · P.O. Box 10 04 44 · 83004 ROSENHEIM · GERMANY · Phone +49 8031 184-0 · Fax +49 8031 184-820
Subject to alteration.
Priority
936.5358/a
Connector
Dual-Band Combiner
698 – 806 MHz
824 – 960 MHz
53,5
65,5
177,5
165,5
85
64
53,5
91
80,5
Dimension
264,7
M8
7
38
59
40
9
229,7
15
284,7
241
170,5
34,5
22,2
936.5358/a
39,3
48
Subject to alteration.
153
79,2
Please Note:
As a result of more stringent legal regulations and judgements regarding product
liability, we are obliged to point out certain risks that may arise when products are
used under extraordinary operating conditions.
Extraordinary operating conditions, such as heavy icing or exceptional dynamic stress
(e.g. strain caused by oscillating support structures), may result in the breakage of a mast
mounted device or even cause it to fall to the ground.
These facts must be considered during the site planning process.
The combiners are designed to operate under the environmental conditions as described
in ETS 300 019-1-4 class 4.1 E and have passed environmental tests as recommended in
ETS 300 019-2-4.
The installation team must be properly qualified and also be familiar with the
relevant national safety regulations.
The details given in our data sheets have to be followed carefully when installing
the combiners and accessories.
The limits for the coupling torque of RF connectors must be
obeyed.
Terminate unused inputs with a suitable 50-Ohm load, e.g.
78410367.
Any previous datasheet issues have now become invalid.
78211287, 78211288 Page 3 of 3
www.kathrein.com
KATHREIN-Werke KG · Anton-Kathrein-Straße 1-3 · P.O. Box 10 04 44 · 83004 ROSENHEIM · GERMANY · Phone +49 8031 184-0 · Fax +49 8031 184-820
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