Grounding the Maestro

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  • Updated 4 years ago
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Have quite a bit of electric noise being captured by the Maestro. The interesting thing is that the same noise I see in the panadapter on the Maestro is not there when I connect with the computer. The other interesting part is that any time I touch the metal knobs on the Maestro the panadapter visual noise decreases considerably. If I operate with the USB battery its much better but it is still there.

The PSU that came with the Maestro is not usable for me... it produces a ton of noise... chances are the ground prong in the outlet is not really grounded. 

I am using the same PSU I use with the Flex radio and there is definitely some grounding issue... so I was wondering... is there any recommended spot to ground the Maestro?
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EA4GLI - 8P9EH - Salvador

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Posted 4 years ago

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Steve (N9SKM)

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Official Response
Sounds like good ol common mode noise to me. Same thing happens with the PSU that pro audio sells for the KX3 which actually is a very low noise supply. Put a few wraps around a ferrite and see if that helps.