15-05-2024, 08:01 AM
Hi Jeffrey
The DC bias on the audio modulator sets the audio carrier level so it can be adjusted to the correct level with respect to the video carrier.
From memory the way it works is it overrides the clamp circuit in the chip.
The audio level determines the modulation depth.
Frank
The DC bias on the audio modulator sets the audio carrier level so it can be adjusted to the correct level with respect to the video carrier.
From memory the way it works is it overrides the clamp circuit in the chip.
The audio level determines the modulation depth.
Frank
