Uniden ELITE PC78 - Manual (Page 10)

SWR Meter: Measures SWR (standing wave ratio) of antenna. Use to check
antenna system or to adjust your antenna to the proper length.
8
To Transmit
Multi-Function Meter
Perform a voltage Standing Wave Ratio ( SWR ) measurement
prior to using the transmitter. A SWR ratio in excess of 2:1 may
damage the transmitter.
Be sure to read and understand Part 95, FCC Rules and
Regulations before operating your transmitter.
1. Select a channel.
2. Adjust MIC GAIN.
3. When the channel is clear, press the
microphone PTT switch and speak.
To measure SWR:
1. Position meter switch
to CAL.
2. Press and hold
microphone PTT
switch. (Transmit)
3. Calibrate meter with
SWR knob by adjusting the
needle to the
▼ mark.
4. Move the meter switch to the
SWR position while pressing the
microphone PTT switch.
5. Release the PTT switch.
A reading following two is acceptable. Higher readings indicate a problem in
the antenna system. Problems may be caused by humidity, vibration, or
corrosion. Check both ends of the coaxial cable connector. Also check for
damage to the cable or antenna.
UC343FH 10/23/03 2:32 PM Page 8