GLOSSARY OF TERMS | |
VHF | Very High Frequency: 30MHz to 300MHz |
FM | Frequency Modulation |
Carrier Wave | A Radio Frequency on which Intelligence is |
| superimposed |
Dual Watch | Monitor channel 16 while working on another |
| channel |
All Scan | Scans all channels |
Select Scan | Scans only user selected memory channels |
U.S.A. Channels | Channel designations as defined by the FCC |
International Channels | Channel designations as defined by |
| International Telecommunication Union |
Canadian Channels | Channel designations as defined by the |
| DOC |
Weather Channels | Channels for routine and emergency |
| weather information broadcast by NOAA |
Simplex | Transmit and receive on the same frequency |
Duplex | Transmit and receive on different |
| frequencies |
Squelch | To suppress totally |
LCD | Liquid Crystal Display |
TX | Transmit |
RX | Receive |
RF | Radio Frequency |
CPU | Central Processing Unit |
PLL | Phase Lock Loop (A type of frequency |
| Synthesizer) |
VCO | Voltage Control Oscillator |
PTT switch | Microphone |
| iv |