Antenna solutions and recommendations on antenna mounting for the

AN 1106 v3.0 | 4/12
Antenna solutions and recommendations on antenna mounting
SpeechLine Digital Wireless - SL Rack Receiver DW
Antenna mounting options
As mentioned above, there are multiple possibilities for remote mounting the anntennas. In the
following, we will explain the most common options with additional recommendations in order of
preference.
Option 1:
Connecting the AWM 2/AWM 4 directly to the receiver(s)
You can connect one receiver directly to one AWM 2 antenna wall mount or you can connect two
receivers directly to one AWM 4 antenna wall mount.
SL Rack Receiver DWSL Rack Receiver DW SL Rack Receiver DW
Link I - Ant ILink I - Ant II Link II - Ant ILink II - Ant II
AWM 4AWM 2
CL 1 PP (1 m / 3.3 ft)
CL 5 PP (5 m / 16.4 ft)
CL 10 PP (10 m / 32.8 ft)
CL 20 PP (20 m / 65.6 ft)
Signal loss due to extension cables
In this scenario, using extension cables for remote antenna mounting results in a loss of transmis-
sion power, depending on the cable length. You can compensate this signal loss by configuring the
transmission power of the receiver accordingly.
f Observe the following minimum transmission power settings (SL Rack Receiver DW: System
Settings menu -> RF Power) for the respective cable lengths:
• Cable length of 5 m -> at least level 1
• Cable length of 10 m -> selected level +1, at least level 2
• Cable length of 20 m -> selected level +1, at least level 3
• Cable length of 25 m and longer -> selected level +2, at least level 4
f The Sennheiser CL antenna cables have the following attenuation:
CL 1 PP 0.5 dB
CL 5 PP 2.5 dB
CL 10 PP 5 dB
CL 20 PP 10 dB