Some results from a prototype modulator HAT showing a YouTube video in 405 Line Sysrem A Channel 1 Video 45 MHz, Sound 41.5 MHz.
Still plenty to do, audio level is too low from DAC so a stage of amplification is required before the modulator. And then it’s about getting a media application written and a program to select standards and frequencies via I2C bus.
The noise on the video is actually from the Pi5 fan running.
https://youtube.com/shorts/HnQP40D3f9s? ... W67PoJjMXh
Still plenty to do, audio level is too low from DAC so a stage of amplification is required before the modulator. And then it’s about getting a media application written and a program to select standards and frequencies via I2C bus.
The noise on the video is actually from the Pi5 fan running.
https://youtube.com/shorts/HnQP40D3f9s? ... W67PoJjMXh
Statistics: Posted by OldTVEnthusiast — Tue May 14, 2024 9:23 pm