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The TMC Radio “Simple Repeater” The full, in-vehicle, configuration.
The ‘Practical “Simple” Repeater’ is probably the easiest to set up and get going. It can’t however, manage the normal vehicle communications task
because it has no control head. This has to be carried out using a third radio dedicated to providing normal comms. This radio is fitted with a control head
and would be at the front of the vehicle. When using this radio, the rebroadcast radios should be switched off and when using the re-broadcast, the main
vehicle radio should be switched off.
TWC 147.350MHz
Secondary Rebroadcast
Radio
Primary Rebroadcast
Radio
Control of rebroadcast
depends on which radios
are switched on.
Using the above switch
suggestion, only one
setup can be on at any
time. Either the main
radio or the Rebro can
be on, never both.
Diplexer
Independent Vehicle
Communications Radio
Two independent aerials are required.
Positive battery supply
Power to the Main Vehicle radio
Power to the Rebroadcast radios
Crossover cable
Using a dash-mounted rocker switch to provide power to either
system but not both.
This approach is only partially successful for a number of reasons, the main one being
that it requires three SRM9000’s to make up the complete communications system for a
rebroadcast vehicle. Some teams may accept this in view of the ease with which the
system can be set up. It will certainly work as a rebroadcast device
.
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