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RTR-2. An external Receiver Guard DXE-RG5000HD is recommended. Only the main transceiver
may be used to transmit. The second transceiver that is connected to one of the DXE-RSC-2
outputs must be transmit inhibited using either the radio's menu settings or power output controls
set to zero to prevent system damage.
Set the MAIN ANT - RX ANT - MAIN ANT toggle switch to the RX ANT (center) position to
connect the MAIN ANT to both radios for simultaneous reception. When you key the main
transmitter, the DXE-RTR-2 automatically changes from receive on both radios to transmit on the
MAIN ANT in about 4 ms. The strong signal heard by the second radio is at a level that cannot
damage it's front end. An external relay may be required to mute the second receiver supported on the
RTR-2 ACC PTT. Manually switching the toggle switch to the MAIN ANT (up) position connects
the MAIN ANT to the main transceiver, if desired for tune up operations, or for normal operations
without the second radio. The power limit for the radio transmit is 200 watts.
Diagram 10 illustrates how to share the transmit antenna with two radios such as a Kenwood
transceiver and an SDR with a spectrum display. Similar to Diagram 9, using the DXE-KWD-RTR
Keying Cable. Addition of an external Receiver Guard DXE-RG5000HD to protect the second
receiver is left to the discretion of the user. Any RTR-2 internal optional Plug-in Modules are ‘seen’
only by the Kenwood transceiver (in this diagram) connected to RADIO. Use the ACC PTT (and
external relay if needed) for the second receiver mute during transmit,
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