[TowerTalk] Weird RFI at remote location

[Jim Brown]

On 1/1/2021 6:07 PM, Lux, Jim wrote:
> You might get one of those $50 spectrum analyzers - seeing the RFI 
> spectrum may give you some clues  - a loop antenna (untuned) will have 
> distinct nulls. It's more "field compatible" than going around with your 
> rig's panadapter.

While I don't know the hardware Jim is suggesting, a spectrum analyzer 
that can provide both amplitude and waterfall is EXTREMELY useful in 
diagnosing RF noise. See my website and also NK7Z's.

On my website, it's http://k9yc.com/KillingReceiveNoise.pdf in text form 
and these slides. http://k9yc.com/KillingRXNoiseVisalia.pdf  The old 
ARRL book by Marv Loftness is particularly good in understanding noise 
that originates in the power system, but nowadays, most noise is 
electronic noise, NOT power line noise.

73, Jim K9YC