88 Preparation for Operation TB7100 Installation and Operation Manual
© Tait Electronics Limited December 2005
7.4 Talk Through Repeater
Once the base station has been set up and tested as a line-controlled base, it
is simple to convert it into a talk through repeater. In this mode of operation
the received audio and receiver gate from the receiver module are looped
back to the transmitter.
7.4.1 Test Equipment Required
The following test equipment is used to setup the base station for talk
through repeater operation:
■ PC, programming cables and the TB7100 programming application
■ digital voltmeter
■ DC power supply
■ RF test set with:
■ RF power meter
■ modulation analyser
■ RF signal generator
■ sinad meter
■ audio distortion meter
■ audio level meter
■ audio signal generator.
Figure 7.3 Talk through repeater
Receiver Transmitter
System Interface
RF In
RF Out
Rx Audio
Rx Gate
Tx Audio
Tx Key
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