Radio Shack 21-533 Marine Instruments User Manual


 
5
1. Turn off your radio. Then disconnect the antenna from
the radio and plug it into
ANTENNA
on the back of the
meter.
2. Plug the coaxial cable into the radio’s antenna jack and
into
TRANSMITTER
on the back of the meter.
CALIBRATING THE METER/
MEASURING SWR
1. Set
CALIBRATION/FS/SWR
on the front of the meter to
CALIBRATION/FS
.
2. Turn on your radio. Then select a channel or frequency
on your transmitter and hold down its transmit key. Do
not
speak into the microphone.
Notes:
An SWR reading will be different for different frequen-
cies (channels). If you transmit on one channel more
often than any other, select that channel. If you trans-
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