There are a lot of acronyms for everything these days, and it would be nice to have a place to go to find ones specific to a category, in this case, communications. Here are the acronyms, and these will be updated as necessary.
AGC – Automatic Gain Control
AM – Amplitude Modulation
APRS – Automatic Packet Reporting System
ATT – Attenuator
CAT – Computer Assisted Transmitter
CB – Citizens’ Band
CPS – Customer Programming Software
CTCSS – Continuous Tone-Coded Squelch System
CW – Continuous Wave (mode used to transmit morse code)
DCS – Digitally Coded Squelch (aka DPL)
DMR – Digital Mobile Radio
DPL – Digital Private Line (aka DCS)
FM – Frequency Modulation
FRS – Family Radio Service
GPS – Global Positioning System
GMRS – General Mobile Radio Service
GNSS – Global Navigation Satellite System
HF – High Frequency
LSB – Lower Side Band
MURS – Multi-Use Radio Service
PL – Private Line (PL Tone, aka CTCSS)
POTA – Parks On The Air (make 10 contacts from an approved park)
PTT – Push-To-Talk
RF – Radio Frequency
RST – Readability, Signal strength, Tone
RTTY – Radio Teletype
RX – Receiver
SSB – Single Side Band
SOTA – Summits On The Air (make 4 contacts from an approved summit)
SQL – Squelch
SW – Shortwave
SWR – Standing Wave Ratio (for antennas, the close you are to 1:1, the better)
TX – Transmitter
TSQL – Tone Squelch (a tone used for both transmitting and receiving on a channel)
UHF – Ultra High Frequency
USB – Upper Side Band
VFO – Variable Frequency Oscillator
VHF – Very High Frequency
VOX – Voice Operated eXchanged (commonly known as Voice Activated Transmission)
