[RFI] RFI on New Digital TV
Jim Brown
jim at audiosystemsgroup.com
Thu May 22 17:12:04 EDT 2025
Thanks for the feedback, Jim. I'm not surprised that both ends were
needed. Suggests either a common mode problem on both ends or that it
simply needed another 6dB of choking.
73, Jim K9YC
On 5/22/2025 2:00 PM, Jim McCook 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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