so ive been trying to get Winlink Express set up for a few weeks now and i keep hitting walls. my basic situation is i have a Kenwood TS-590SG feeding into a Signalink USB and i got the audio levels sorted out (i think) but when i try to connect to an RMS gateway it just sits there doing the handshake thing and then times out. im using Vara HF as the modem because everyone said thats the thing to use now instead of the old Pactor stuff unless you have the actual hardware dongle.

the weird thing is i CAN see the gateway in the frequency list and the waterfall shows something happening when it responds, like there IS signal coming back, but Winlink Express just reports a failed session every time. ive tried like four different gateways, some close some far, doesnt matter. my dial freq is set correctly based on what the channel table says and i have the rig control going through COM3 which works fine for other software.

is there something dumb im missing with the RMS setup on my end or is this a VARA configuration thing? i did buy the VARA license if that matters. its not a free version issue.

first thing id check is whether your transmit audio is actually hitting the right levels in VARA. a lot of people get the Signalink set up fine for something like fldigi and then assume its good for VARA but the drive level is totally different. VARA wants a pretty clean unclipped signal and if youre overdriving it even a little the gateway will see garbage and just drop you. there should be a calibration thing in VARA where you can run a test tone and watch the ALC on your rig — you basically want the ALC to barely be moving, not pegged.

also worth double checking the PTT settings in Winlink Express itself vs what VARA thinks is handling PTT. ive seen people have it set in two places and they conflict. if the Signalink VOX is handling PTT then make sure Express isnt also trying to key the rig via CAT or something because the timing gets weird.

yeah the audio clipping thing is probably it but also — what distance are you trying for? some of those RMS gateways on the list are hundreds of miles out and if conditions arent great on the band you picked youre just not gonna make it with VARA FM clearly im assuming youre on HF here. VARA HF and VARA FM are different installs btw, easy thing to mix up.

i spent like two weekends on this same problem last year and eventually figured out my issue was that i had the Winlink Express channel set to 7 something but the actual gateway had moved frequencies and the database hadnt updated yet. hit the update channels button and try again, sometimes that alone fixes it.