tinySA the "tiny Spectrum Analyzer" and the ridiculous noise floor.

My noise floor on 80 & 40m is a bit ridiculous. It can be between S5 and S9 depending on the radio, antenna and the time of day. 

Either way, it's pretty noisy. And it's a whole world of hurt when that preamp is on. 

I ordered a "tinySA" based upon an article at http://ka7oei.blogspot.com/2021/02/rfi-radio-frequency-interference.html

After a quick charge, I thought I'd go for a run about with it. Using the MiniWhip didn't yield much result in the house (not sure it's working...). Using the little antenna that came with it was good enough for getting up close to things.

The big ones:

This is the side of my rack at the back closest to the power supplies. Certainly a bit noisier on the bands that I have a problem with. 

Around the front is no better...

Sadly, the bundle of HDMI cables that are carrying the noise are leading straight into the study.. aka.. my shack.

I couldn't pickup much interference from any LED downlights. The garage LED lighting however was a little noisy. 

The switch modes on my reef aquarium are a broadband mess. Something else under there further away is a bit noisy down low. 

The only other interesting noise was coming from the ceiling. Holding up high indicated a fair bit of noise. There is, of course, a central heating unit up there and was in close proximity to where I started testing up that high... and the ceiling is full of ducting.

Not quite sure what to do about that one. Not entirely sure how to handle the rack situation yet either. I know some UPSes can provide a fair bit of RFI, but that unit is rather high on the industrial side for me to start doing things with. With all 20 x 12 v batteries connected in serial, even the DC side is pretty serious stuff to be messing around with. The best I might be able to do is quieten some of the 240v coming out of the UPS and some of the DC side of the server power supplies.