On 2/9/2026 4:31 PM, Don Kirk wrote:
but a lot of times the 160 meter DFing headings did not
converge upon each other and at times I felt like I was just pointing
perpendicular to high voltage transmission lines versus right at the source
regardless if using my portable flag or tuned loop
This issue can often be avoided by relaying the RFI heard on the station
receiver, so you can hear it while you are tracking. There is almost
always a pattern of fluctuations in the noise. When they match, you know
you are hearing the correct source. This is the same principle as
"signature analysis", but you don't need an extremely expensive piece of
equipment, just a couple 2 meter radios. (Cell phone latency is too high.)
The station receiver should be in the AM mode, AGC off, and RF gain
reduced to avoid overload, if necessary.
73,
Scott K9MA
--
Scott K9MA
k9ma@sdellington.us
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