[RFI] RFI on New Digital TV

[David Eckhardt]

In my experience, HDMI is a very dirty interface.   It takes a well
constructed and shielded HDMI to contain the RFI.  In addition, it also
requires a good RF termination of the shield.  Jumper wires don't get the
job done!

Dave - WØLEV

On Thu, May 22, 2025 at 9:22 PM Jim McCook <w6ya at cox.net> wrote:

> For now the RFI on the new digital LG TV has been stopped.  The solution
> was a type 31 one inch ID snap-on toroid with 4 turns on EACH end of the
> 25' HDMI cable between the new digital receiver and the TV.  One toroid
> on either end was not sufficient.  None of this was necessary with the
> previous units, which were android units.  The same cables were used in
> the new installation.  None of the receiver peripherals were changed.
> All speaker leads had previously been wrapped on 1-5/8 ID type 31
> toroids.  I still wish I had the old android units.  73, Jim
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-- 

*Dave - WØLEV*