ok so i passed my general a few months ago and ive been mostly sticking to the digital modes but i want to try some SSB phone on 40 meters and im honestly just confused about the whole thing. like i know theres a band plan but is that different from what the FCC actually says i can use? my buddy told me generals cant go below 7.175 or something but then i looked it up and saw different numbers in different places and now im more confused than before.

also i keep hearing people say dont operate near the band edge but nobody really explains why or how close is too close. like whats actually going to happen if im at 7.299 or whatever the edge is. is it a legal thing or just a courtesy thing or what

yeah this trips up a lot of new generals honestly. so the FCC Part 97 is the actual law and that says as a general you get phone privileges on 40m from 7.175 to 7.300 MHz. thats it, thats your chunk. the ARRL band plan is more like a gentlemans agreement on top of that, like where DX tends to hang out or where nets operate, but it doesnt change what youre legally allowed to use.

the band edge thing is a real concern and its not just courtesy. your transmitted signal has a certain bandwidth to it, and if you set your dial to say 7.299 on USB, your actual signal is going up from there and could technically extend outside the 7.300 limit. the FCC says your emission has to stay within your allocated band, not just your carrier frequency. so most people give themselves at least 3 kHz of breathing room, some say more depending on how well their rig filters the signal. old tube rigs especially can splatter more than modern stuff. so theres a legal reason to stay away from the edge, not just a politeness thing.

one thing i'll add is that 7.175 to 7.225 tends to get pretty congested with SSB, lot of rag chewing and some nets in there. if youre just starting out and want to make some contacts without stepping on stuff, somewhere in the middle of your allocation is usually fine. i had the same confusion when i upgraded and spent like a week just listening before i ever keyed up, that helped a lot more than reading about it tbh