ok so ive been listening on HF for a few weeks now and i keep hearing and seeing all these abbreviations that i dont really understand. like QSL, QTH, QRM, QSB... i know QSL has something to do with confirming a contact but honestly im just guessing most of the time. is there like a master list somewhere or do people just kind of pick these up over time? also on digital modes people are using stuff that isnt even Q codes, like ES and DE and 73 and i have no idea where any of that comes from. feels like theres a whole other language i missed the memo on

yeah its a lot to take in at first, dont worry. so Q codes were originally from maritime and commercial radio back in the early 1900s, they were meant to be a shorthand that worked across language barriers which is why theyre still useful internationally. the ones you'll hear most on ham radio -- QTH is your location, QRM is interference from other stations, QSB is signal fading, QRN is static/noise, QRZ means whos calling me, QSY means change frequency. QSL is yes, confirmed, acknowledged, basically. theres a ton of them but honestly you only really need maybe a dozen for day to day operating and the rest you just look up when you see them.

the other stuff like 73 (best regards/best wishes), 88 (love and kisses, usually sent to a partner or close friend), DE means from in french/latin kinda thing so like W1ABC DE K5XYZ means K5XYZ calling W1ABC. ES just means and. its all morse code shorthand that carried over into voice and digital. ARRL has a decent reference page and honestly after a few months of being on the air it just clicks

im pretty new too but i picked up a cheat sheet from my local club that had maybe 30 of the most common ones and that helped a lot. also when i was studying for my tech exam some of this came up. the Q codes i use the most already are just QTH, QSL, QRM and QRZ honestly, everything else i just kind of figure out from context when someone uses it