VXR-7000 FM REPEATER OPERATING MANUAL14
Important Notes!
Please refer to the operating manual for your Duplexer for details regarding maximum power input, TX/RX con-
nector locations, etc) before installing the Antenna Duplexer.
Be certain to observe and comply with the specifications for frequency separation and maximum transmitter
power for the duplexer connected to the VXR-7000, particularly when using the VXD-40xx internal duplexer.
When the VXD-40xx is used, the frequency separation must be 5 MHz (minimum) to 10 MHz (maximum), and the
maximum transmitter power output allowed is 40 Watts.
If the VXR-7000 output power (50 Watts) is in excess of the range of the duplexer's capability, you may reduce the
TX output power of the VXR-7000 before installing the Antenna Duplexer, using the following procedure:
1. Connect the VXR-7000’s TX antenna port to a watt-
meter and dummy load (the duplexer must not be
connected at this point). Connect any Vertex Stan-
dard microphone to the MIC jack, and place the
BASE/REPEATER switch in the “BASE” position.
Select Channel 1 for alignment purposes.
2. Press and hold in the ACCESSORY switch for two
seconds to enter the adjustment mode. The channel
number will begin to blink.
3. Press and hold in the PTT key on the microphone.
The display will indicate “Po” while transmitting.
Observe the power output as indicated on the
watmeter.
4. Press the p (UP: increment) or q (DOWN: decre-
ment) button (to the right of the channel display)
repeatedly to adjust the TX output power to 40 Watts
(or less) while holding in the PTT key.
Duplexer Installation
5. Once the desired power level has been obtained, re-
lease the PTT key. Now press and hold in the AC-
CESSORY button for at least two seconds to save
the new setting and exit to the normal operation.
6. Repeat steps 2. through 5. (above) for any other chan-
nels (2 through 16) if they are to be used.
7. Re-test each channel in the normal operating mode
to confirm the proper power output. You may now
disconnect all test equipment.
8. The duplexer may now be installed.
The above procedure should only be performed by your
Authorized Vertex Standard Dealer or a qualified radio
technician, in order to ensure accurate calibration. Please
consult with your Authorized Vertex Standard Dealer
for assistance with procurement of a suitable duplexer.
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