[RFI] RFI on New Digital TV

Jim Brown jim at audiosystemsgroup.com
Tue May 20 18:24:39 EDT 2025


Thanks Dave. Yes indeed, AND, like all passive networks, reciprocity 
tells us that the Pin One Problem works in both directions, but with 
different response depending on driving and terminating impedances. So 
the same techniques -- proper bonding and grounding and suitably wound 
ferrite chokes help at HF, and single turn (just the clamp-on) at VHF 
and low UHF.

73, Jim K9YC

On 5/20/2025 12:54 PM, David Eckhardt wrote:
> Anything and everything "digital" produces copious RFI in spite of the 
> Pin 1 problem.  It's universal with anything and everything digital.  
> Yes, I fully appreciate the Pin 1 problem, even applied to RF!




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