User’s manual for Repeater MRx01B Power
M0079A1A.doc
Id.-No. 151775
Page 21
10-March-00
2.6 Active combiner
After passing through the conversion modules, the signals will be combined by the active
combiner module in the UL and in the DL path. The active combiner will be followed by the
feedforward amplifier.
figure 2-7 Top view of the active combiner module
2.7 Measuring aids
With built-in RF probes test signals can be applied or detected. The probes provide a coupling
factor of 30 dB respectivly 20 dB. Each duplexer (uplink and downlink) is equipped with one
30 dB coupler, the UL Input duplexer additionally with a 20 dB coupler for a modem or
mobile (see chapter 4 Optional equipment). This facilitates measurements under all
operational conditions, while an antenna or a dummy load may be connected.
The position of the couplers on the duplexers is shown in figure 2-6 Top view of the
duplexers.
