Interesting. I ran into a similar problem but with SO-50. I mounted a GoPro to the boom of my arrow and worked an AO-85 pass and everything seemed fine. I then had a fairly shallow pass of SO-50 and could barley make out anything, I quickly detached it and moved it away and I could hear the bird just fine.
You may want to look into shielded CAT-6, I hear this helps.
73 Mike Diehl W8LID/VE6LID
On Nov 8, 2018, at 09:22, Burns Fisher burns@fisher.cc wrote:
I could not find the earlier note about 91 or 92 receive problem, but I just remembered that I had trouble with 91 a few weeks ago and discovered that a network camera that I had observing my antenna was generating a strong signal right on the AO-91 downlink frequency. Ferrites on the CAT5 helped some, but not enough. So until I can examine it more, I power the camera off when I'm working 91.
I found it using an HT and just noticed the squelch breaking as I tuned over the frequency. From then on it just used the HT as a probe. Narrowed it down to the network, and then had to do some unplugging to find the actual culprit.
73,
Burns WB1FJ _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb