User Manual

Recommendations on antenna mounting

Signal loss due to extension cables and antenna combiners

In this scenario, using extension cables and antenna combiners for remote

antenna mounting results in a loss of transmission power, depending on

the cable length.

You can compensate this signal loss by configuring the transmission pow-

er of the receiver accordingly. Observe the following minimum transmis-

sion power settings (SL Rack Receiver DW: System Settings menu -> RF

Power) for the respective cable lengths. The antenna combiner produces a

signal loss which is equivalent to 15 m of extension cable. This loss needs

to be taken into account when calculating the required transmission power

levels.

We recommend using the following cable lengths in combination with the

antenna combiner:

• receiver to combiner: 1 m -> combiner to AWM 2/4: 1 m

• receiver to combiner: 1 m -> combiner to AWM 2/4: 5 m

• receiver to combiner: 1 m -> combiner to AWM 2/4: 10 m

• receiver to combiner: 5 m -> combiner to AWM 2/4: 1 m

• receiver to combiner: 5 m -> combiner to AWM 2/4: 5 m

• receiver to combiner: 10 m -> combiner to AWM 2/4: 1 m

Cables longer than 10 m are not recommended for this variant.

This results in the following transmission power levels to be set in the

menu of the receiver or simultaneously for all receivers in the Sennheiser

Control Cockpit software:

•cable length of 5 m plus combiner -> at least level 2

•cable length of 10 m plus combiner -> at least level 3

Direct line of sight

▷ If possible, position the antennas so that there is a direct line of sight

(without obstacles) between the transmitters and the antennas.

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