so ive been licensed for about 3 months now, Tech class, just got my General last week actually. been listening on HF a lot trying to figure things out before i jump in and make a fool of myself. but everyone seems to be using all these abbreviations and short codes and i can only figure out maybe half of them from context.

like i know QSL means you got the message or confirming contact, and QTH is your location, but then people throw out stuff like QRM, QRN, QSB, QRZ and i kind of know what some of those mean but not really sure if im using them right in my head. and then theres all the non-Q stuff too like 73, 88, OM, YL, DE, and people just fire these off like everyone should obviously know them.

is there like a good reference somewhere or can someone just explain the common ones? i dont want to ask on air and sound completely clueless

yeah the Q codes go back to like morse code days, they were originally a way to send common phrases quickly in CW without having to spell everything out. most of the ones you'll hear regularly on HF voice aren't even being used the technically correct way anymore, people just kind of adapted them into casual speech.

the ones you really need are QRM which is interference from other stations, so man-made noise basically. QRN is natural noise like static from lightning and stuff. QSB is signal fading, like when someones signal is going up and down. QRZ is asking who is calling, you'll hear that one constantly especially at the end of a CW or SSB contact when someone's listening for more callers. QRT means stopping transmission or shutting down. QRX means stand by or wait a minute. QTH is location yeah. QSL is confirming. QRP means low power, a lot of guys run QRP rigs like 5 watts or less and it becomes almost a whole subculture.

for the other stuff, 73 is just the traditional sign off meaning best regards, goes back to telegraph days. 88 is love and kisses, usually said to YLs which means young lady, though it just means any female ham regardless of age. OM is old man which is just how hams refer to other male operators, not actually about age. DE is from in morse, so when you hear W1ABC DE W2XYZ it means W2XYZ calling W1ABC. once you hear it a few times it clicks pretty fast.

honestly the ARRL website has a decent list and so does the back of most license study books. dont stress too much about sounding clueless, everyone was new once and most hams are pretty patient if you just say youre new

one that trips up a lot of people is QSY, that just means change frequency. and QRO is the opposite of QRP, means high power. so if someone says they're going QRO you know they're cranking up the watts. i also see people mix up QRM and QRN constantly even guys who've been at it for years lol