PRELIMINARY
1. Alignment of the RLR-460 Repeater requires that surface-mount potentiometers be adjusted. These potentiometers
do not have end stops so one must pay special attention to the wiper position for maximum clockwise and
counterclockwise settings. Also, one should be careful never to set the wiper in the dead band between maximum
and minimum.
2. Alignment of the Repeater requires connection to the pins on the front panel modular jack. The attached photos will
show the use of a matching modular plug and cable with breakout wires.
3. The frequency deviation numbers shown are for narrow (12.5 kHz channel spacing) operation. Double the values for
wide (25 kHz channel spacing) operation. The RLR-460 does not support both narrow and wide bandwidth operation
in the same model. Separate models exist for each; the RLR-460 for narrow, the RLR-460-W for wide.
4. A communications service monitor capable of duplex operation is required to set R328 (REPEAT AUDIO LEVEL).
Other alignment steps can use individual pieces of equipment (RF signal generator, RF wattmeter, etc.), although
communications service monitors tend to include all the functions necessary to align this product.
5. Ensure that the Repeater is properly programmed for the correct transmit and receive frequencies and the correct
QC/DQC tones/codes. Even if a transmit tone is not to be used (unusual), one should program one anyway to get the
transmit tone deviation properly set (it can then be programmed off
)
. This parameter is, however, set at the factory.
6. Refer to the RLR-460 ALIGNMENT POINTS diagram at the end of these instructions and the accompanying photos
for the location of alignment points and adjustments.
RX High Pass
Tuning Posts
TX Low Pass
Tuning Posts
Summary of Contents for Liberty RLR-460
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