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Re: does the CM108 PTT functiopnality work with te Windoes Version of FLDIGI?


 

I am using:

- Yaesu FT-817ND

- Dinah sound card
? ? ?o?

- I am enabling config>rig control>C-Media PTT> use C-media PTT checked

Test works and lights the red PTT light on the DINAH.

But when I transmit the red PTT light does not get lit.

On Thu, Apr 11, 2024 at 8:26?AM K3EUI Barry <k3euibarry@...> wrote:
Don

I have been using DRA sound cards and Fldigi (mostly on 2m FM Icom and Kwnd rigs) using the C-Media RA adapter for PTT.

However, I have found ¡°redundancy¡± for PTT in Fldigi is not good; that is, do not also select PTT via a CAT port, and likewise do not select PTT via a hardware RTS com port.

In certain radios, watch out for that RTS/CTS option (Yaesu rigs).

If you are having problems using the Fldigi and RA adapter option for PTT, are you also using some other program for ¡°rig control¡± like WSJT-X or Winlink VARA, or a logging app?

It could be the typical ¡°COM port conflict¡± issue even though RA adapter is not a COM port.

And remember that the DRA sound cards are STEREO, but Flidig normally just sends TX audio (mono) to the LEFT channel.
DRA sound cards expect the TX audio to be on the RIGHT channel (jumper settings in the sound card).
In Fldigi, select under the RIGHT channel: put TX audio on BOTH left and right.

I also disable the VOX in the DRA sound cards - more jumpers to disable.

What specific radio and which DRA sound card?

de k3eui barry



--

73,
AB1PH
Don Rolph

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