Trying to test this with Winlink Express and a LinBPQ RMS station

[wg9r]

I have an RMS station running LinBPQ, and a Linux computer configured with Winlink Express via Wine. Everything works great when using packet over direwolf (at both ends).

I tried setting up modem73 on the server and the client, and I can send test messages that both sides can receive from each other. But when I run Winlink Express through the KISS interface, it calls out but never seems to connect.

Has anyone else got this to work yet? One thing I noticed is I cannot configure my SSID in my callsign on the RMS side, so I don't know if that is causing an issue. If I add a -10 to my callsign, modem73 will not start and indicates I have an invalid call sign.

Looking forward to messing around with this some more! Thanks!

--Dan, WG9R

[RFnexus]

Hi WG9R, test messages from the modem73's test utils or from LinBPQ? I will play around with this software myself to let you know if I find anything.

[wg9r]

I sent the test messages both ways using modem73's built in mechanism.

…

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[RFnexus]

But when I run Winlink Express through the KISS interface, it calls out but never seems to connect.

When you run Winlink Express make sure to turn Fragmentation in the modem ON for both sides or adjust the PACLEN down to whatever fits inside your modem frame size

[RFnexus]

Do test on your local hardware though, it should work with LinBPQ.

[wg9r]

I've updated to version 2.3.1 on the RMS gateway and my client station, disabled ROBUST and MFSK on the RMS station. This definitely lowered the CPU usage on the RMS station!

With pat winlink on the client side, I'm able to make a connection to the RMS gateway reliably, and see it make the connection to the CMS. After that, it drops the connection with "Exchange failed: Connection lost".

I'm trying to see if I can increase logging on the RMS gateway to figure out what is going on.

[wg9r]

Also, as a note for testing data, if I replace modem73 with direwolf on both sides, everything connects and sends/receives messages without issue.

[RFnexus]

Sorry, was a bit busy with a few other tasks. Could you provide when you have a chance:

• What radio are you using on each station?
• What mode, frame size, and coding rate?
• Is CSMA on? (Turn CSMA off for Winlink)

[wg9r]

The LinBPQ RMS station is using a Yaesu FTM-6000 with a DigiRig Mobile
CSMA is off on both sides, and set to SYNC.
Frame is set to NORMAL
Code rate is 1/2 for QPSK. I've tried different modulations and code rates, same results.

Same settings for the client side, but I am using various handhelds with a DigiRig Mobile or Lite. All of these radios will connect and pass data when using packet mode with DireWolf.