Calibrate Standing Wave Ratio (Swr) - Uniden Bearcat PC787 Owner's Manual

Turn SQ knob fully counterclockwise until you hear a hiss.
•
Everything gets through - noise, weak signals, and strong
signals
Turn SQ knob clockwise until the hiss stops. Only clearer
•
signals get through.
Set SQUELCH only when the radio is not receiving a strong signal.
6. Set the S/RF/SWR/CAL switch to S/RF.
7. Press and hold PTT and check the multifunction meter. It will
show the RF output power. Adjust as needed.
8. Turn RF knob to set RF gain sensitivity. Normally, the knob is
turned clockwise to maximum.
9. Turn MIC knob to adjust microphone sensitivity for transmission.
Normally, the knob is turned clockwise to maximum.
10. Set the brightness (HIGH, MED, or LOW).
The Weather Alert system monitors the last weather channel you were on
before you changed to CB mode. It sounds a seven-second signal when it
decodes a severe weather alert issued for your area. Change to Weather
mode for details.

Calibrate Standing Wave Ratio (SWR)

SWR calibration monitors the coaxial cable quality and all RF connections.
Do not calibrate in an enclosed area such as a garage. Do not stand near
the antenna while calibrating.
1. Set CB/WX/PA to CB and select channel 20.
2. Set S/RF/SWR/CAL to CAL.
3. Press and hold PTT on the mic. The needle on the multipurpose
meter will begin to move.
4. Turn the CAL knob until the meter needle moved into the red
calibration block. When the needle moves towards the right-hand
side of the block, stop.
5. Still holding PTT, move the S/RF/SWR/CAL to SWR. The needle
should move back to the left-hand side of the meter. Ideally, it
should be as far left a possible. If the reading is higher than 3,
adjust the antenna height.
6. Release PTT.
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