Suport for SV6301A / SV4401A

A macOS companion application for FA-VA 5 and NanoVNA
Post Reply
oxoocoffee
Posts: 5
Joined: Sat 16. Aug 2025, 15:21

Suport for SV6301A / SV4401A

Post by oxoocoffee »

Hello :)

I was wondering if I could assist with adding support for both units

SV4401A - https://www.sysjoint.com/index.php?tpl= ... =2&lang=en
SV6301A - https://www.sysjoint.com/index.php?tpl= ... =2&lang=en

I attempted to use SV6301A which I have, It does shows up and after I connect showing correct firmware number.
I am speculating the issue in your code is related to 1001 points vs 501 points which your current VNA's support.

I can try to force it to 501 and see if that shows up anything. With my default 1001, there is not error or change on the screen except the firmware version.

Do you have builtin logging with various levels of verbosity so in such cases users can attach here?

73, Robert
User avatar
DL2RUM
Administrator
Posts: 2994
Joined: Mon 27. Aug 2007, 13:36
Location: JO40DF

Re: Suport for SV6301A / SV4401A

Post by DL2RUM »

At a first glance I can't see a reason why it doesn't work. Observe the Stimulus panel after connecting. Do you see a response?

Stimulus.jpg
73 and best dx de Tom, DL2RUM
oxoocoffee
Posts: 5
Joined: Sat 16. Aug 2025, 15:21

Re: Suport for SV6301A / SV4401A

Post by oxoocoffee »

Here is a screenshot for the latest version downloaded today Version 1.2 (6)
The three previous VNA in the list do produce the same output in attached screenshot. The new VNA model when select is prompting me about calibration stating the master calibration is missing. But my SV6301A has been calibrated.

As I mentioned, the firmware version is reported correctly. So something is working. Please note, no antenna is connected, since I just wanted to get a quick screenshots.

73,
Attachments
Actual unit connected to MacOS
Actual unit connected to MacOS
Application running
Application running
User avatar
DL2RUM
Administrator
Posts: 2994
Joined: Mon 27. Aug 2007, 13:36
Location: JO40DF

Re: Suport for SV6301A / SV4401A

Post by DL2RUM »

We have a debug option available since version 1.2 (6). 😀
  • Start VNAmate
  • Disconnect the device using the Disconnect button - the left hand bubble turns red.
  • Go to Menu-->Window-->Debug
  • Make sure the Spy check box is selected
  • Connect the device
  • When Stimulus datas are seen, press the Scan button in the Stimulus panel.
  • Post the result from the Debug window using copy and paste, no screen shot.
It is worth to try all NanoVNA options, no need to try the FA-VA 5 since this is completely different.
73 and best dx de Tom, DL2RUM
oxoocoffee
Posts: 5
Joined: Sat 16. Aug 2025, 15:21

Re: Suport for SV6301A / SV4401A

Post by oxoocoffee »

Great,

I will provide generated output here sometimes tonight.

73,
oxoocoffee
Posts: 5
Joined: Sat 16. Aug 2025, 15:21

Re: Suport for SV6301A / SV4401A

Post by oxoocoffee »

Here it is. Please see attached file.
Using the latest update, it seems some data did come. Anything else?
Attachments
Screen reference
Screen reference
SV6301A.log
Debug Log captured using NovoVNA-F V2
(263.16 KiB) Downloaded 10 times
SV6301A.log
Debug Log captured using NovoVNA-F V2
(263.16 KiB) Downloaded 10 times
User avatar
DL2RUM
Administrator
Posts: 2994
Joined: Mon 27. Aug 2007, 13:36
Location: JO40DF

Re: Suport for SV6301A / SV4401A

Post by DL2RUM »

Which macOS version?
What is the table showing?

It seems you have an Open connected?
73 and best dx de Tom, DL2RUM
oxoocoffee
Posts: 5
Joined: Sat 16. Aug 2025, 15:21

Re: Suport for SV6301A / SV4401A

Post by oxoocoffee »

I am running latest upcoming Tahoe 26 beta since I am testing my apps. Final version is expected to be released next week on Sep 8/9.
I will run it again in couple of hours and will send you a screenshot.

73,
Post Reply