CAT and PTT control not responsive on TS-570SG

Hello guys,i am using Digirig mobile to connect my Kenwood ts570sg to my computer for ft8.I use my homemade DB9 and DIN13 cable, which meets Digirig’s connection requirements.

On the radio,MENU35 was 96-1,MENU36 (COMMAND TRANSFER) was on.On the jtdx was 9600-8-1,Handshake - None,DTR and RTS was both blank.PTT methods was RTS.

I can get the radio’s audio output to the computer,but the "test CAT"result returns “kenwood get id returning(-6)IO error”,and “test PTT” also doesnt worked.

I have tried using 57600‑1, 4800‑1, and 4800‑2 speeds.

Does anyone have any advice to offer?

73 de BG7NIC

the digirig cable has the rts and dtr lines tied together.
does your homebrew cable tie them together ?

kb0wlf