ok so i finally upgraded from tech to general last month and im trying to figure out the 40 meter band. i know generals dont get the whole band but im confused about the edges and where exactly phone starts vs cw and all that. like i keep seeing people say dont operate too close to the band edge but how close is too close and why does it even matter if youre within your privleges technically?

also someone at the club meeting said something about the ARRL band plan vs what the FCC actually says and now im even more confused because i thought there was just one set of rules. can someone break this down a bit

Yeah this trips up a lot of newly upgraded generals, dont feel bad. So the short version is there are two different things going on — the FCC part 97 rules are the actual legal limits, and then the ARRL band plan is more like a gentlemans agreement on how to organize things within those legal limits. You have to follow part 97, the band plan is voluntary but most people follow it to keep things from being a mess.

For 40m as a general your phone privileges start at 7.175 MHz and go up to 7.300. The CW/digital segment is 7.025 to 7.125 for generals. The reason people say stay away from the band edge is that your transmitted signal isnt a perfect needle — depending on your rig and your audio settings you might have sidebands or splatter that goes a few kHz either side of your carrier. So if youre running SSB and you tune to exactly 7.300 your actual signal could be spilling above the band edge where you have no privileges, and technically thats a violation even if your dial says youre legal. Most people say stay at least 3 kHz inside to be safe, some say 5.

went through the exact same thing when i upgraded. one thing that helped me was just pulling up the arrl website and looking at the band plan chart they have, its a PDF i think. you can see at a glance where everything is supposed to go. doesnt answer every question but at least you get a visual of it

the band edge thing honestly i just err on the side of caution and stay well inside. had a guy on the air once get pretty snippy with me when i was on 7.298 and he said i was too close to the edge lol. i mean he wasnt totally wrong i guess