I agree it does seem a nice thing to have available. At some point I'll probably try SDRAngel on a Pi5. If that works well then it may be possible to drive an LCD from the Pi5.
Decode UHF TV ZX81 signal with SDR
Re: Decode UHF TV ZX81 signal with SDR
As I learn more about the HackRF One I'm able to produce cleaner images. These images are taken direct from the RF output of a ZX81, captured using the HackRF One attached to a Raspberry Pi 5. I pressed "Print Screen" to take a snapshot of the live display.
To see them properly it is better to click on the images, so they are displayed at full resolution. The image quality from the captured RF is now similar to that generated by my composite modded ZX81 on an LCD TV.
Probably the most challenging image to decode, all checkerboard (Graphic H)
Displaying 320 by 240
Detecting Interlace
Using the "display in inverse" option
To see them properly it is better to click on the images, so they are displayed at full resolution. The image quality from the captured RF is now similar to that generated by my composite modded ZX81 on an LCD TV.