Here's a list of ham radio lingo/nomenclature/slang/terminology/jargon I'll do my best to keep adding to! Have a suggestion? Contact me any time: About / Contact. The one and two character terms become suddenly-prevalent in CW (Morse Code), where unnecessary letters require extra effort, and/or can lead the other party to confusion
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Hey, let's prioritize terms you may never hear while operating, but really need to know!
Potentially Life-Saving
If you hear one of these and don't immediately hear a response (EG: Coast Guard), you should contact a relevant authority- Coast Guard for vessels, FAA for aviation, etc. If you don't know who to call, it's 9-1-1:
- Mayday - International distress call
- Pan-Pan - Urgent call (from French "panne" - breakdown) - indicates urgent situation but not immediately life-threatening, such as mechanical failure, medical issue needing assistance, or safety concern
General Jargon
- DE - From (as in "this is")
- FB - Fine Business (excellent)
- Footwarmer - Tube amplifier (they get hot)
- GL - Good luck
- Ham - Amateur radio operator
- K - Invitation to transmit/over
- Lid - Poor operator (derogatory)
- Mike - Microphone
- Roger - Message received and understood
- Ticket - Amateur radio license
- TU or TY - Thank you
People & Operators
- Elmer - A mentor who helps new hams learn the hobby
- OM (Old Man) - Any male ham radio operator (regardless of age)
- SK (Silent Key) - A deceased ham radio operator
- YL (Young Lady) - Any female ham radio operator, regardless of age
- XYL (Ex-Young Lady) - A married female ham operator, or an operator's wife
Operating Terms
- 73 - Best regards
- CQ - Calling any station, seeking contact
- QSO - A contact/conversation between stations
- QSL - Confirmation of contact (also the confirmation card itself). Used during a QSO, EG: "name here is Mark. QSL?" - "QSL, Mark, good signal. Name here is Beth"
- QTH - Location/address
- QRM - Man-made interference
- QRN - Natural static/interference
- QRP - Low power operation (generally 10 watts of input, or 5 watts of measured output) [Source]
- QRO - High power operation
- QSY - Change frequency, EG: "shall we QSY to 146.550?")
- QRT - Done transmitting/shutting down
- QRV - Are you ready? Or: I am ready
- QRZ - Who is calling me? Or: next contact, please
- RST - Signal report: Readability, Strength, Tone. Find a chart here
Equipment & Operations
- Dummy Load - Non-radiating practice antenna for testing. And sometimes used to describe bad gear, EG: "I wanted to like that antenna but it was just a dummy load"
- Duplex - Transmit and receive on different frequencies (repeater operation)
- Key - Morse code sending device (straight key, paddle, etc.)
- Mobile - Operating from a vehicle
- Portable - Operating away from home station with temporary setup
- Repeater - Automated station that retransmits signals for extended range
- Networked Repeaters - Several repeaters linked together either via internet or radio backhauls
- Rig - Radio transceiver
- Scanner - A receive-only radio used to listen to police, aviation, ham radio, etc.
- Shack - Ham radio operating station/room
- Simplex - Direct station-to-station communication (as opposed to through a repeater)
- SWR - Standing Wave Ratio (antenna efficiency measurement)
Contests & Activities
- Contest - Competitive operating event. Check out a contest calendar here
- DX - Long distance communication, usually international. Contesters focussed on making distant contacts may call "CQ DX {callsign}"
- Net - Organized on-air gathering at scheduled time
- Pileup - Multiple stations calling one station simultaneously
- Ragchew - Long, casual conversation
- Round Table - A conversation involving three or more stations taking turns, often informal and social. In SoCal? Check out our twice-monthly one of these!
- SOTA - Summits on the Air (operating from mountain peaks). I'm pretty into this and have a section of this site about it: SOTA (Summits on the Air). And here is the program's official website
- POTA - Parks on the Air. Info here
See also this concise, printable PDF from the AARL:

Here's a reminder to get in touch if you have anything to add to this list! About / Contact
73 to you!
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