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Although a much easier solution, the previous example was still
complicated by the fact that the diplexer needs to be present to
keep the frequencies in each radio, apart.
If a cross band system is used where the rebroadcast link from the vehicle to the base
is on a different band, the old low band channels being the most obvious for experi-
mentation, then no diplexer is needed and the system is very much simpler to setup.
In the example shown on the next page, a button on the control head has been pro-
grammed for and Auxiliary output on Pin 8 of the power connector. This method can
easily be replaced by the dash-mounted switch shown in the previous example but as
there is no diplexer relay to also be operated, only one button needs to be pro-
grammed to switch the system on and off so this is probably the more elegant solution
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