The posts on this topic mention an isolation transformer to
"separate" the computer from the PSK audio line. So I might have
missed the boat a little when I decided to ground the computer
chassis/case to the common equipment ground. That is, I have a ground
rod with a wire coming up to a copper tube/pipe behind the operating
desk. I've attached all available ground connections - on rigs, power
supplies and antenna tuners to that common copper.
Is that a mistake? Should I disconnect the computer or any other
equipment from that common ground? What about the wing nut on the
tuners - note that they are for unbalanced (coax), not twin lead or
random wire. That is, I think it is supposed to be an electrical
ground, not and RF ground.
Sort of related is the LCD screen - it came with its own power
supply, but I run it off an small amp. accessories power supply that
is also connected to the common ground.
I'm wondering if in my enthusiasm to minimize noise I have actually
created more. I could and will experiment. But if someone sees a
clear, "do it this way instead of that" to the setup, I'd appreciate
knowing.
Thanks and 73,
Paul
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