locked Re: TCI-Client for Sun SDR #Cat_RigControl

Charlie Morrison

Hi all


Bill, TCI 1.5 spec as used in JTDX 2.2.156, and the most recent version of MSHV also controls the audio stream. TCI 1.6 has been developed specifically for ExpertSDR V3 which is currently in alpha state. Neither of the 2 aforementioned programs work with TCI 1.6 yet.


@Roger ExpertSDR will let you go down to steps of 0.1 Hz


73, Charlie GI4FUE


From: main@WSJTX.groups.io [mailto:main@WSJTX.groups.io] On Behalf Of Bill Somerville
Sent: 24 November 2021 20:40
To: main@WSJTX.groups.io
Subject: Re: [WSJTX] TCI-Client for Sun SDR #Cat_RigControl


Hi Roger,


as far as I can see the TCI feature for sample data is only implemented for I/Q data from ExpertSDR, not foe baseband PCM audio which is what is needed for WSJT-X, although audio does seem to be promised in some future version of TCI. Looking at the TCI 1.6 spec it does have commands to control audio streams, so maybe it is implemented.


I see the CAT via a virtual COM port uses a TS-480 emulation, I don't see why that would limit the SDR to 100 Hz steps, what do you have set in the "Step" drop-down list in ExpertSDR?




On 24/11/2021 20:16, Roger Corbett wrote:

Hi Bill,

Just to add another number to the count. I too have a SunSDR and Id love to be able to use TCI directly from WSJT-X.

Currently Im using MacLoggerDX to do the connection which is fine but I’ve never been able to get any sort of doppler correction working with that setup.

Thats not totally true but 100hz steps, which is all I’ve been able to achieve, is useless as a microwave IF.



Roger ZL3RC

On 25/11/2021, at 8:43 AM, Charlie Morrison <charlie@...> wrote:


Hi Bill


There are a great many users of the SunSDR range, and I for one  would love to see TCI incorporated as a CAT  option…It can also stream the Audio which gets around having to use VAC with its attendant artefacts. Perhaps it could be investigated


73, Charlie GI4FUE


From: main@WSJTX.groups.io [mailto:main@WSJTX.groups.io] On Behalf Of ????? ??????? via groups.io
Sent: 24 November 2021 17:25
To: main@wsjtx.groups.io
Subject: Re: [WSJTX] TCI-Client for Sun SDR #Cat_RigControl


Hi Bill, Mike

This question arose during the discussion on the site forum.qrz.ru of the capabilities of the WSJTX, JTDX and MSHV programs by users of SUN SDR transceivers. Surprised that WSJTX does not use TCI communication technology.


73 Boris UX8IW

Среда, 24 ноября 2021, 0:39 +02:00 от Bill Somerville <g4wjs@...>:

On 23/11/2021 19:33, Борис Романов via groups.io wrote:


Maybe I don’t know something, but I want to ask.

Is the WSJTX program supposed to control the SDR transceiver (CAT and sound) via the TCI interface?

This control is implemented in the JTDX and MSW programs.

73 Boris UX8IW

Hi Boris,

as far as I am aware, you are the first to ask. No WSJT-X does not currently support that rig control mechanism. If there is enough interest I can look at implementing it, or if anyone wants to contribute an implementation as a pull request I will consider its inclusion in WSJT-X.





Борис Романов


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