49
The switch marked ‘Rebroadcast On’ supplies power to the secondary radio so turning the device into a rebroadcast unit or
repeater if a suitable config file has been loaded into the radios. If this switch is in the ‘Off’ position then power is only supplied to
the team working channel radio. No control head or speaker is connected to the rebroadcast channel (147.350MHz) radio.
The LED marked ‘High’ is indicating that the TWC radio is receiving a signal. Because the Rebroadcast switch is on, this signal is
being re-transmitted on the rebroadcast channel. When base replies, the other light (Low) will be on. The red LED in the centre
indicates that power is on to the TWC radio.
The rebroadcast switch would also be used to provide power to the antenna change-over relay to switch the diplexer in and out of
circuit. The switch itself would ideally be mounted on the dash-board of the vehicle but could be left on the case of the unit if
required. Simple in operation. If the big green light is on then you’re in rebroadcast mode. If it’s not then you have an ordinary
team working channel radio that is controlled by the telephone handset. This is more likely to be a 9030 control head if the device
was part of a vehicle system.
To Next Page
Loading...
