okay so i just got my technician license about three weeks ago and ive been trying to get on the local 2m repeater. i can hear people talking on it just fine but when i key up nobody seems to hear me or i dont get the courtesy beep back. a guy at the club mentioned something about CTCSS tones and i looked it up but honestly the explanations i found were kind of confusing.

my radio is a baofeng uv-5r (yeah i know, i know) and i programmed it with chirp using the frequency and offset from the repeater directory but i dont think i set the tone right. like is the tone something i transmit, something i receive, or both? and does the tone have to match exactly or is there like a range? the repeater listing just says 100.0 and i have no idea if thats what im supposed to put in as the transmit tone or what.

also kind of a separate question — when i do get it working, is there like a standard way to jump into a conversation or do people just talk whenever? dont want to be rude about it

yeah the tone thing trips up a lot of new folks. so CTCSS is basically a subaudible tone your radio sends along with your transmission, and the repeater uses it to decide whether to open up or not — keeps it from keying up on random noise or signals from far away. the 100.0 in the listing means you need to program 100.0 Hz as your transmit tone (sometimes labeled CTCSS T or Tone or TX CTCSS depending on the radio or software). you dont necessarily need to set a receive tone unless you want to squelch out anything that comes through without it, but most people leave that off.

in chirp there should be a Tone Mode column — set that to Tone, then set the CTCSS Freq to 100.0 and make sure youre saving it to the right channel. double check your offset direction too, most 2m repeaters are plus 600 kHz but some are minus, the directory should say.

on the etiquette side — if theres a conversation going on, wait for a pause between transmissions, key up and just say your callsign and say youre monitoring or standing by. most people are pretty welcoming, especially to new hams. just dont step on someone mid-sentence and youll be fine.

went through the exact same thing with my first radio lol. one thing that got me was that chirp sometimes doesnt save properly if you dont hit enter after changing a value in the cell — i kept wondering why nothing was sticking. worth double checking the actual radio menu after you write to it just to confirm the tone is really in there.

also the courtesy beep thing — some repeaters have a slight delay before it sounds, so if youre letting go of PTT and listening right away you might be missing it. try holding a hair longer after you finish talking before you release.