Using WSJT-X with SDRs #sdrs


Pete Smith
 

Has anyone figured out how to interface WSJT-X with any popular SDRs, like maybe Hermes-compatible?  I have a receiver vacant on my Red Pitaya 16-bit SDR, and would be happy to spot FTx if I didn't have to commit my one-and-only HF transceiver to the job.

-- 
73, Pete N4ZR
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web server at <http://beta.reversebeacon.net>.
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Dave Garber
 

if it has audio outputs, or a connection to add an external, like a signalink, I see no reason why  it cou;ld not receive at least.
have you tried it?

Dave Garber
VE3WEJ / VE3IE


On Wed, Sep 15, 2021 at 2:18 AM Pete Smith <pete.n4zr@...> wrote:

Has anyone figured out how to interface WSJT-X with any popular SDRs, like maybe Hermes-compatible?  I have a receiver vacant on my Red Pitaya 16-bit SDR, and would be happy to spot FTx if I didn't have to commit my one-and-only HF transceiver to the job.

-- 
73, Pete N4ZR
Check out the new Reverse Beacon Network
web server at <http://beta.reversebeacon.net>.
For spots, please use your favorite 
"retail" DX cluster.




Joe Subich, W4TV
 

Pete,

There are two issues ... audio and control.

For audio, one generally needs to route audio from the SDR to
WSJTX using one of the "Virtual Audio Cable" products. Your
SDR software should have an audio output selector which would
be set to the input of a VAC while the "Soundcard Input" of
WSJTX would be set to the output of that VAC.

For control, your SDR software will need to provide a CAT interface
that emulates a "well known" transceiver - generally the TS2000 -
and provides the frequency of your "FT8 slice" as *VFO A*. Note:
if you plan to leave the receiver on one frequency/band and not
band hop, you can avoid the CAT issues (WSJTX -> Radio -> Rig:
None).

73,

... Joe, W4TV

On 2021-09-14 2:41 PM, Pete Smith wrote:
Has anyone figured out how to interface WSJT-X with any popular SDRs, like maybe Hermes-compatible?  I have a receiver vacant on my Red Pitaya 16-bit SDR, and would be happy to spot FTx if I didn't have to commit my one-and-only HF transceiver to the job.
--
73, Pete N4ZR
Check out the new Reverse Beacon Network
web server at<http://beta.reversebeacon.net>.
For spots, please use your favorite
"retail" DX cluster.


Peter Hall, VK6HP
 

Pete,

I use my SDRPlay RSPdx receiver with WSJT-X and it works well.  I implement the CAT and audio paths via free versions of VSPE and Virtual Audio Cable, respectively.  The SDR program, SDRuno, allows easy selection of the CAT and audio paths.  I imagine many similar SDR applications have the same facility. It's just a case of making a device pair within VSPE, and tweaking the monitoring capability of VAC should you want to monitor the receiver audio in the PC speaker. Just select a basic Kenwood CAT protocol in WSJT-X.

It's likely possible to do the same thing for a small SDR transceiver since the paths are bi-directional, so you could have both a beacon transmitter and receiver.

73, Peter.


 

I use com0com for the control. Virtual Audio Cable gives you one cable for free. For a small donation you can get the second cable (needed for TX and RX).

 

73 Phil GM3ZZA

 

Sent from Mail for Windows

 

From: Peter Hall, VK6HP
Sent: 15 September 2021 14:39
To: main@WSJTX.groups.io
Subject: Re: [WSJTX] Using WSJT-X with SDRs #SDRs

 

Pete,

I use my SDRPlay RSPdx receiver with WSJT-X and it works well.  I implement the CAT and audio paths via free versions of VSPE and Virtual Audio Cable, respectively.  The SDR program, SDRuno, allows easy selection of the CAT and audio paths.  I imagine many similar SDR applications have the same facility. It's just a case of making a device pair within VSPE, and tweaking the monitoring capability of VAC should you want to monitor the receiver audio in the PC speaker. Just select a basic Kenwood CAT protocol in WSJT-X.

It's likely possible to do the same thing for a small SDR transceiver since the paths are bi-directional, so you could have both a beacon transmitter and receiver.

73, Peter.

 


--
73 Phil GM3ZZA


 

My mistake I use VB-Audio. The free version of VAC cannot be used for TX as it sticks extra audio in the path. I think it’s $25 to get a “clean” version.

 

73 Phil GM3ZZA

 

Sent from Mail for Windows

 

From: Philip Rose via groups.io
Sent: 15 September 2021 16:02
To: main@WSJTX.groups.io
Subject: Re: [WSJTX] Using WSJT-X with SDRs #SDRs

 

I use com0com for the control. Virtual Audio Cable gives you one cable for free. For a small donation you can get the second cable (needed for TX and RX).

 

73 Phil GM3ZZA

 

Sent from Mail for Windows

 

From: Peter Hall, VK6HP
Sent: 15 September 2021 14:39
To: main@WSJTX.groups.io
Subject: Re: [WSJTX] Using WSJT-X with SDRs #SDRs

 

Pete,

I use my SDRPlay RSPdx receiver with WSJT-X and it works well.  I implement the CAT and audio paths via free versions of VSPE and Virtual Audio Cable, respectively.  The SDR program, SDRuno, allows easy selection of the CAT and audio paths.  I imagine many similar SDR applications have the same facility. It's just a case of making a device pair within VSPE, and tweaking the monitoring capability of VAC should you want to monitor the receiver audio in the PC speaker. Just select a basic Kenwood CAT protocol in WSJT-X.

It's likely possible to do the same thing for a small SDR transceiver since the paths are bi-directional, so you could have both a beacon transmitter and receiver.

73, Peter.

 


--
73 Phil GM3ZZA

 


--
73 Phil GM3ZZA


pa3abk
 

Did you try "SparkSDR"? Natively it connects to WSJT-X providing this program is located on its  "normal" location.
SparkSDR is capable to run several receivers and different modes. ( https://www.sparksdr.com/  )

Runs on Windows 7+, Linux x64, linux arm(rpi) and Mac.

====>
Features

Run multiple radios at a time each with as many receivers as they support.

Built in digi modes (PSK31, WSPR, JT9, JT65, FT8, FT4, FST4, FST4W) no need for virtual audio or serial cables.

Virtual receivers that allow many modes to be monitored at once. This shares the bandwidth of as many slice receivers as the radio has between multiple modes.

ssb compression using the controlled envelope ssb clipping algorithm.

low latency audio and dsp chain.

Neural network based noise reduction.

Touch friendly UI.

Undersampling reception and transmission, depending on the filters in front of the radio you can tune to above the Nyquist frequency and odd/even spectrum folding is transparently corrected.

Radio frequency correction using network time protocol.

MIDI interface to control surfaces and low latency cw keyers.

Transmission is currently restricted to only work with the hermes lite, receive should work for other openHPSDR compatible radios but some features such as filter switching may not work.

<====
Jan/pa3abk


David Owen
 

I have used WSJT-X with HDSDR and an Icom R8600 receiver. It works well with manually set frequency and WSPR mode.
The WSJT-X receiver is set to TS590S. As mentioned above, a virtual cable and software serial link are also needed.
I could post further information if anyone is interested.
Regards

David Owen

GM1OXB


Amos Sobel 4X4MF
 

Pete

 

I use Flex Radio 6600 SDR with 4 instances of WSJT-X. Receiving on 4 bands and transmitting on 1 band at a time. One could receive on 4 separate modes like SSB, CW, PSK36, FT8.

 

Amos 4X4MF

 

 

From: main@WSJTX.groups.io <main@WSJTX.groups.io> On Behalf Of Pete Smith
Sent: Tuesday, September 14, 2021 9:41 PM
To: WSJTX@groups.io
Subject: [WSJTX] Using WSJT-X with SDRs #SDRs

 

Has anyone figured out how to interface WSJT-X with any popular SDRs, like maybe Hermes-compatible?  I have a receiver vacant on my Red Pitaya 16-bit SDR, and would be happy to spot FTx if I didn't have to commit my one-and-only HF transceiver to the job.

-- 
73, Pete N4ZR
Check out the new Reverse Beacon Network
web server at <http://beta.reversebeacon.net>.
For spots, please use your favorite 
"retail" DX cluster.