so ive been trying to get winlink working for a few weeks now and i think i understand the concept but the actual setup is tripping me up. i have a signalink USB hooked to my 7300 and ive got vara FM installed and i can see the waterfall and stuff in winlink express but when i try to connect to a nearby gateway it just times out every time. the gateway shows up in the channel selector and the frequency looks right but nothing happens.

what i dont totally get is how the RMS gateway piece fits in. like is the gateway operator running pat or winlink express on their end or is it a completely different software stack? i looked at the winlink.org site and it talks about RMS relay and all these different modes and im not sure which one applies to my situation. im just trying to send a test email to my gmail through a local VHF gateway to start.

also do i need to have my callsign registered somewhere before any of this works or does the system just figure it out from my FCC license

the callsign thing — yes you do need to register on winlink.org first, its free and takes maybe 2 minutes, the system doesnt auto-pull from FCC. that was probably biting me too when i first started, nothing works until you have an account and a password set up on their end.

as for the gateway software, most sysops running an RMS gateway are using the actual RMS software from winlink, not pat or express. pat is more for client side stuff. the gateway machine is basically running a service that bridges your RF connection to the winlink CMS servers over the internet. you as the client just need vara FM or packet AX.25 on your end and you connect to the gateway frequency, handshake happens, and your messages go through. if its timing out id check whether vara FM is actually keying up your radio — sometimes the PTT settings in signalink are off or the RTS/VOX thing isnt configured right for the 7300. theres a setting in vara FM for PTT method and you want to make sure its actually transmitting before blaming the gateway.

yeah what he said about the PTT, thats almost always the problem when i see people having this issue. also worth checking — some gateways that show up in the channel selector are actually offline or the sysop hasnt been running it lately. the map on winlink.org shows last heard times i think, might be worth looking at that before you spend hours debugging on a dead gateway. try a couple different ones if you can hit them on simplex.

one thing that helped me when i was learning this stuff was just joining a local ARES net that uses winlink, because then you have people who can actually tell you if they received your test message or not. kinda hard to know if its working otherwise unless you're emailing yourself through a different path