FPGA System A modulator

[ppppenguin]

I wonder if the DAC will be sufficiently linear to do sound and vision without excessive intermodulation. Looking at the specs I feel it ought to be but I'm not an expert on RF.

The audio will need to be converted by an ADC, then upsampled by a huge factor before multiplying by the audio carrier. The audio and video modulated carriers are then simply added before being applied to the DAC.

For test purposes one could easily generate some tones to modulate the audio carrier. This would allow simple tests for intermodulation.