so ive been licensed for about 3 months now and i get on the air occasionally but half the time people are throwing around stuff like QSL and QRM and QTH and i just nod along pretending i know what they mean. i looked some of them up but there are like hundreds of them and i dont know which ones actually get used vs which ones are just historical junk that nobody says anymore.

also on top of that theres all the other abbreviations that arent Q codes, like people say 73 and 88 and ES and DE and i kind of picked up that 73 means goodbye or good luck or something but im not totally sure. is there like a short list of the ones that actually matter for everyday operating? i dont want to memorize 300 codes if only 20 of them come up regularly

yeah totally get the overwhelm on this, i felt the same way starting out. honestly the ones you'll hear constantly are pretty manageable. QTH is your location, QSL means confirmed or acknowledgement (like yeah i got your transmission), QRM is interference from other stations, QRN is natural static/noise, QSB is when your signal is fading in and out, QRZ means who's calling me, and QRP is low power operation. those come up all the time.

the number codes like 73 are just old telegraph shorthand that stuck around. 73 is best regards, not really goodbye exactly but people use it that way. 88 is love and kisses, usually sent to someone you know well. DE just means from, so when you hear W5XYZ DE K4ABC that's K4ABC calling W5XYZ. ES means and. so you'll see stuff written like ur 599 es good wx which means your signal report is 599 and the weather is good.

dont stress about memorizing everything at once, you pick it up just from being on the air. after a few weeks the common ones just click.

the Q codes came from maritime and commercial radio way before ham radio even existed, so yeah a lot of them are obscure and basically never used on the ham bands. i wouldnt worry about most of them. the one i see newer folks mess up sometimes is QRZ -- a lot of people say it to mean is anyone there or calling CQ but technically it means whos calling me, like you use it when you heard a partial callsign and lost them. not a huge deal but worth knowing the distinction.

also OM means old man which sounds weird but it just means any male ham regardless of age, and YL is young lady for female operators. XYL is ex-young lady, basically means wife. these show up a lot in casual ragchewing and can definitely confuse people the first time they hear them lol