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Workshop Chinese HDMI to RF converter.

 
Doz
 Doz
(@doz)
Noble V-Ratter Registered
Posts: 1329

Just took a punt on one of these from AliExpress. Works really nicely, and outputs all flavours of PAL and NTSC over RF. Adjustable level of "zoom" to get rid of any under-scanning. 

The power supply (5V 1A)

analogue

looks dubious, and will not be used. 

 

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Topic starter Posted : 20/12/2021 12:20 pm
WayneD and ntscuser liked
Doz
 Doz
(@doz)
Noble V-Ratter Registered
Posts: 1329

One caveat. It only appears to have a VHF output... however there's a strong harmonic at UHF which is perfectly usable!

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Topic starter Posted : 20/12/2021 12:57 pm
Doz
 Doz
(@doz)
Noble V-Ratter Registered
Posts: 1329

Fundamental at 67.5 ... then an output at 470MHz (Ch21) and another ch 35

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Topic starter Posted : 20/12/2021 3:41 pm
Sundog
(@sundog)
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Posts: 167

-47dBm into 75Ω (61.75 dBµV) is a nice signal level for a UHF tuner. You could always wrap it in foil 😉

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Posted : 20/12/2021 10:10 pm