[RFI] FW: RF noise and ground

Jim Brown jim at audiosystemsgroup.com
Thu Jan 23 14:05:33 EST 2025


On 1/23/2025 4:30 AM, nlsa at nlsa.com wrote:
> Question:  I’ll bet that my noise floor could be improved by a better RF connection to Earth, but how can I do it?  What mode does EMI take in this situation?  What is “ground” in a non-metallic enclosure?
> 
The earth is not a sump into which noise is poured. The ONLY reason for 
an earth connection, and it is ABOUT LIFE OR DEATH, is LIGHTNING 
PROTECTION, and it is required by LAW. So is the bonding of everything.

I would not expect any noise reduction at VHF from an earth connection, 
but proper grounding and bonding is required by Electrical Codes, which 
are LAW, and for human safety.

73, Jim K9YC





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