It's all about the Software

This group might not be much help for you. It is related to Simon's "SDR-Radio (v3)" software. You seem to be fussing with the rtl433 tool. Merbanan's rtl433 github site would be where I would start in my quest for decoding help from people using the SW. It looks like the "Discussions" tab is still ...

Very definitely RX888's want their own USB3 controller all by itself. Images of the settings for the RX888 driver for both SDRC and HDSDR might be interesting to see. What else is running concurrently?

If it used to work, somewhere you got a setting wrong or a connection wrong. The video problem ...

There are a LOT if sub-par knockoffs out there. I think I got one. On both HDSDR and SDRConsole the audio stutters due to sampling dropouts unless I drop the sample rate down from the theoretical maximum.
{^_^}

As summarized it occurs to me that if you generate different definitions for different firmware the definition might have an offset in one or more of them. I am betting this is not in the least likely; but, I've learned to listen when my brain coughs up silly hairballs. In the definition converter ...

Alex, you seem to have accepted the wisdom that the easier you make it for the developer to add your product to another existing product the more likely it will be added. And that means more sales. It does not escape me that this makes an excellent tool for scanning for UAV RF control and video ...

I cannot speak for Simon. With a quick look at the GitHub code it looks like there is maybe enough there for him to work with. It might be good for the .h file or another file to be a little more descriptive of what ranges of input values and output values are accepted, legal, and returned from the ...

Ah, as I see the picture it looks like the edges, title bar and status bar in particular, have been trimmed off. They contain a lot of helpful information. Some stuff you may need to write down. For a rough start set the "AGC" to either off or a number around 19. The VHF AGC might also have numbers ...

You've reached the limits I can help with. I live in a part of the world that does not speak that kind of television. We do ATSC variants over here.
{^_^}

You need a graphics codec that comes with Win 11 and is a $5 store thing for Win 10. It is "H265/HEVC MS App Store".

{^_^}

The picture did not make it. And modulo the USB dongle involved you may be seeing the dongle's imperfections. Idly, how is "infraSonic" used in this context? And how have you identified the source with any degree of precision?

{^_^}