AKG WMS 4000 - SCHEMATIC Parts List page 6

Cable Attenuation
To obtain the best sound possible, you need to have the right RF input level throughout
your signal chain. Premium quality wireless systems like the WMS450 and WMS4000,
offer you adjustable RF-level settings that garantee to maximise operating distance even
when using different cable lenghts and different types of cable! For this purpose, AKG's
PS4000W antenna splitter, has 3 dip switches that you'll find on the right side of it's
front panel, behind the AKG logo.
RG58 Cable Attenuation (MKPS, MKA5, MKA20 antenna cable)
PS4000 dip switch
This dip switch reduce the input RF level of the PS4000 between 0 dB and 14 dB.
All antenna output level and the cascade(link) output level have an effect on this reduction.
PS4000W – Power Splitter
Antenna A cascade output
AB4000 dip switch
The AB4000 has a fix 17.5dB amplifier in the output stage. The dip switch reduce the
input RF level of the AB4000 between 0 dB and -14 dB. AB4000 get the DC power
through the antenna cable from the PS4000 or an ASU4000 unit.
AB4000 – Antenna Booster
Internal
Attenuation
MCS0802001
Rear View
Antenna A input
Ant. B
(DC power)
4x Antenna A output
(DC power)
Total Gain
3.5 dB
5.5 dB
7.5 dB
9.5 dB
11.5 dB
13.5 dB
15.5 dB
17.5 dB
6
Signal level adjustment
Attenuation
dip switches behind AKG Logo
Signal level adjustment
Wolfgang Fritz / Feb. 2008