Hi Fred,
The first thing to check is that you wired the connections from the Easy Digi interface and the Kenwood radio properly. In particular it is important that both the Mic Gnd and the PTT Gnd connections from the Easy Digi are connected to the radio ground.
The Easy Digi implements a Vox interface for PTT. In order for this circuit to work, there has to be sufficient output volume on the Sabrent USB sound fob/dongle. Try turning up the speaker volume for the USB sound interface to see if this helps to generate PTT.
No PTT configuration is needed in direwolf.conf when using Vox, so these commented out PTT lines are fine.
73,
Thomas
KK6FPP
