Appendix C: Glossary
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Appendix C: Glossary
Term
Meaning
All Scan
A feature that scans all channels.
Canadian Channels
Channel designator as defined by Industry Canada.
CH
Channel selection key
Dual Watch
A feature that monitors the Priority Channel 16 while working on
another channel.
Duplex
Transmit and receive on different frequencies
FCC
Federal Communications Commission (US)
International Channels
Channel designator as defined by the ITU
ITU
International Telecommunications Union
LCD
Liquid Crystal Display
NOAA
National Oceanographic and Atmospheric Administration (USA)
Priority Channel
Channel 16 or 9 (or other secondary channel you have pro-
grammed)
Priority Mode
Initiated by pressing the 16/9 key, this mode instantly places the
radio at Channel 16 at high power.
Priority Scan (PSCAN)
A feature that alternates monitoring the Priority Channel 16 with
each of the regular channels
PTT switch
Microphone Push-To-Talk switch
RF
Radio Frequency
RX
Receive
Saved Scan
Scans only user-selected memory channels
Simplex
Transmit and receive on the same frequency
Squelch
A circuit that sets the threshold for cutting off the receiver when the
signal is too weak for reception of anything but noise.
TX
Transmit
Tri Watch
A function that monitors the Priority Channel and Secondary Prior-
ity Channel while working on another channel.
US Channels
Channel designations as defined by the FCC.
