Featured
Latest
Chinese HDMI to RF ...
 
Share:
Notifications
Clear all

Forum 1

Workshop Chinese HDMI to RF converter.

4 Posts
2 Users
3 Reactions
831 Views
Doz
 Doz
(@doz)
Posts: 1498
Prominent Member Registered
Topic starter
 

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. 

 

 
Posted : 20/12/2021 11:20 am
Doz
 Doz
(@doz)
Posts: 1498
Prominent Member Registered
Topic starter
 

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

 
Posted : 20/12/2021 11:57 am
Doz
 Doz
(@doz)
Posts: 1498
Prominent Member Registered
Topic starter
 

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

SA PNG 000060
 
Posted : 20/12/2021 2:41 pm
Sundog
(@sundog)
Posts: 173
Member Deactivated Account
 

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

 
Posted : 20/12/2021 9:10 pm
Share: