@K0TX I received the DR-135T cable and Digirig Mobile. Cool, thanks.
As a test, if I connect the cable while the DR-135T is in data mode, and ground the PTT conductor on the 4 conductor audio plug, I should see the radio TX, correct?
I’m using this post Cable for Alinco DR-135T - #12 by Steve_Delaloye as a guide for which conductors to short. I short the S (furthest inside) to the R2 (2nd from inside), and I don’t see the radio TX.
I also tried with a DB9 breakout. No luck. I did get this radio off ebay as a “rescue”, looks like I got a dud?
Analog works great though.