[RFI] SMPS RFI Hunting

Charles Plunk af4o at twc.com
Fri Feb 18 11:47:32 EST 2022


Great topic Mike. Looking forward to suggestions. Have a switcher on 6m 
right now somewhere, hope its in my house. I have 2x 817 & a tinySA 
also. I have played with the tinySA for hunting these without much luck. 
Always seems better just loop and receiver. My FT-60 HT in AM mode has 
been real handy and really portable for V/U hunting but not spectrum 
display. I adapted the battery packs to lithium for long runs. Also made 
a holder for it on the pvc boom on my 2m tape measure homebrew yagi for 
more portability.

73

Chuck
W4NBO

On 2/18/22 09:32, damichael--- via RFI wrote:
> GM , I'm looking for better portable tools for SMPS RFI hunting.
> I use a Sony 2010 for most of my MF and HF hunting because it has a good LF/MF bar antenna that is very directional plus an RF attenuator and RF Gain control. With a 10 segment LED S meter. It can be tuned to the RFI frequency as seen on my shack receiver so I know I'm hunting the correct RFI.
> I also have a Yeasu FT817 with home made handheld loop antenna and a Miraclewhip for 160M and 80m plus a 470mhz 5 element yagi for arcing hardware hunting.
> I would like to upgrade to a nice portable RFI hunting receiver with a spectrum display and I'm looking for suggestions.
> I thought about trying to adapt my tinySA as a waterfall to these receivers but have not gotten very far along with that idea because it seems I'm always chasing a new SMPS RFI and don't get much time at the work bench.
> TNX  es 73, Mike W3TS
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