@OldTVEnthusiast I have a proof-of-concept thing, just to test it can produce something like the correct waveforms. The image size will be 720x378 @ 9Mpix/s which might make for a rather weird aspect ratio.
The quickest way to test it right now might be to replace a kernel module. I'll assume you have the latest Raspberry Pi OS.
Could you confirm the output of(Are you comfortable replacing a module or would you like detailed instructions for it? The worst that can happen is an SD Card image becomes unusable and will have to be overwritten).
Meanwhile, I wonder if you could advise about VHF modulation. Is it essential to have single-sideband or suppressed carrier, or is simple 100% AM likely to work on most TVs? (We are planning to acquire a plasticky 1970s dual-standard TV, to do some experiments at our end...)
The quickest way to test it right now might be to replace a kernel module. I'll assume you have the latest Raspberry Pi OS.
Could you confirm the output of
Code:
find /lib/modules -name drm-rp1-vec.ko.xzMeanwhile, I wonder if you could advise about VHF modulation. Is it essential to have single-sideband or suppressed carrier, or is simple 100% AM likely to work on most TVs? (We are planning to acquire a plasticky 1970s dual-standard TV, to do some experiments at our end...)
Statistics: Posted by njh — Thu Jan 18, 2024 10:40 am