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video and digital on the same coax cable

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brmadhukar

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There are new standards on Coax which do this seamlessly.

Your proposal works because data and videa are at two different frequencies. I cant see any issue other than DC isolation.

hope this helps
 
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    vahrig

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IanP

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You can transmit baseband video over a coax cable and using two RF-chokes at both ends as separators "inject" in between modulated (433MHz or somehing like that) data ..
I wouldn't do it the other way around, as video is "amplitude" sensitive ..

Rgards,
IanP
 

kender

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Ian, thanks for the schematic! I suppose, modulate my digital signal by simply ANDing it with a high-frequency clock.

What's the best way to inject the modulated digital into the cable without disrupting the impdance match?
 

IanP

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