[sdiy] How to use an analog time-domain multiplexer?

Mike Bryant mbryant at futurehorizons.com
Fri Jun 4 16:14:41 CEST 2021

> Explain one thing to me... how come I can send NTSC over minijack?
> That's not RF designed, 50-ohm terminated, or even shielded. It's just a minijack. And the ground is shared with two audio channels, none the less!

Probably because the final generation NTSC decoder in your TV is actually an advanced digital matching filter that works like mad cancelling out reflections and other noise.

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