[RTTY] Noisy PC Power Supply

[Bill Turner]

ORIGINAL MESSAGE:

At 09:41 AM 3/11/2006, Thomas Giella KN4LF wrote:
>Speaking of power supply noise my two PC's made allot of racket. I placed
>split beads on all of the leads but it did little to quiet them. Then as an
>experiment I decided to ground the PC power supplies to my radio station
>ground fully expecting more directly coupled noise.
>
>But to my amazement all of the noise disappeared, even the very noisy Radio
>Shack 25 amp switching power supply was quieted!

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
A corollary to this is to always plug your computer and your 
transceiver PS's into the same AC outlet so they share a common AC 
mains ground point. Plugging them into different outlets creates a 
sort of loop antenna between the grounds.

Bill, W6WRT