In fact, the audio DOES tell us something: That modulation is clearly
audible. If I can hear that with a portable AM receiver, and it makes no
difference what frequency it is tuned to over a wide range, I'm tracking
the right source.
As I've said, the RF spectrum is virtually flat over the widest span the
K4 can display, 368 kHz. There's just no point in posting an image,
which really WILL tell us nothing. (And it's a pain to do with the K4,
as it can only save to a USB drive, not directly to the computer.)
BTW, as of 04Z, 11 PM local, it's gone, so it's likely one of my neighbors.
73,
Scott K9MA
On 10/15/2025 10:19 PM, Jim Brown wrote:
On 10/15/2025 7:10 PM, K9MA wrote:
Here's a link to the image:
This is audio. You're right, it tells us nothing. What we need is the
RF /IF waterfall, as wide and as long as you can either save it or
photograph it. I just photographed what I'm looking for on my K4. The
display is set for max width, averaging to 20. The external monitor is
the most useful display, because the waterfall is longer. I just
mailed it to you.
73, Jim K9YC
--
Scott K9MA
k9ma@sdellington.us
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