[Amps] Amp causing RFI

[Jim Brown]

On 2/4/2020 5:26 PM, Mark Schoonover wrote:
> There can be two paths to ground. One from the back of your equipment to 
> the station ground then back to house ground. The other path is from the 
> ground in the outlet back to breaker box to house ground  then back to 
> station ground. That creates a large loop depending on how much AC 
> wiring involved.

Mark,

I strongly suggest that you study N0AX's ARRL book and/or my tutorial. 
What you are recommending is WRONG and UNSAFE. It is also illegal. 
Ward's book is excellent, probably costs $30-$50. My tutorial is free, 
covers the same material and recommends the same practices. We 
collaborated on his book. http://k9yc.com/GroundingAndAudio.pdf
> 
>   I use several of those three prong to two prong AC adapters to break 
> the path in the AC ground leaving just one path to ground through 
> station ground. 

Again, that is unsafe and illegal.


>All chassis grounds are connected to AC ground so 
> electrical safety isn't compromised. Really cleaned up a lot of noise 
> with my station.

If it solved a problem for you, your station has other bad 
grounding/bonding practices.

73, Jim K9YC