so ive been licensed for about three months now and finally got my HT programmed up to hit the local 2m repeater. i can hear people just fine but when i key up nobody seems to hear me, or at least nobody responds. did some digging and i think it might be a CTCSS thing but honestly im still fuzzy on how all that works.

from what i understand the repeater needs a certain tone to open up, like a subaudible tone you transmit along with your voice? i think i have 100.0 set but the club website lists 100.0 Hz as the access tone so that should be right. but then someone at the club meeting mentioned something about also needing a tone on the OUTPUT side and now im totally confused. do i need to set something on receive too or is that separate from getting into the repeater?

also while im at it — is there some kind of protocol for jumping into a conversation thats already going on? i heard two guys ragchewing and wasnt sure if i should just wait or if theres a way to politely break in. dont want to be that guy who steps on everyone.

Hey welcome to the hobby, dont stress too much about this stuff it all clicks pretty quick.

So the CTCSS thing — the tone on transmit is what the repeater needs to hear from you to open up the squelch on the input side. You got that part right with the 100.0. The receive tone is different, thats for YOUR radio so it stays quiet until the repeater actually transmits something with a matching tone. Some repeaters put a tone on their output, some dont. If youre hearing the repeater fine already your squelch is probably just set to carrier squelch on receive which works perfectly fine. The receive CTCSS setting is really only useful if youre in an area with a lot of interference and you only want your radio to open up for that specific repeater. Most people dont bother with it honestly.

As for breaking into a QSO — just wait for a pause between transmissions, key up briefly and say your callsign. Like just "W1XYZ" or "W1XYZ monitoring" and theyll usually invite you in. Most guys are happy to have another person join the conversation. The main thing is dont key up in the middle of someones transmission, wait for that gap. Some repeaters have a bit of a tail after someone unkeys so you can hear when the channel is clear.

yeah what he said about the tone on receive, i had the same confusion when i started. i actually had my radio set to require a tone to open squelch on receive and then wondered why i wasnt hearing the repeater at all lol. ended up being that the repeater near me doesnt transmit any tone on the output so my radio just sat there silent. took me forever to figure that out.

one thing i'll add about etiquette — around here theres also kind of an unwritten thing where if the repeater is used for a net on certain nights you kinda want to be aware of that schedule. not a big deal but some of the older guys get a little grumpy if youre casually ragchewing right when the weekly net is supposed to start. the club usually posts that schedule somewhere, worth checking out.