Without obstructions, you should hear all FM satellites horizon to horizon with an Arrow and TH-D72. I'd check out the internal duplexer as a possible point of failure.
73,
Paul, N8HM
On Tue, Jan 2, 2018 at 6:19 PM, John, 9H5G kk4oyj@gmail.com wrote:
I’ve become aware that my Arrow may be failing. I’m less and less able to hear the birds towards LOS and sometimes it’s taking the 1st 1/4 of an FM pass to hear anything typically more than 30 degrees elevation.
I know there are many of you working at much lower elevations so I’m beginning to think I have a problem. It’s a salty environment here in C6 and there a little corrosion here and there. Sadly, I have no antenna analyser with me for UHF or VHF. I’ve already stripped it down once and cleaned everything so any advice on the following gratefully received:
What elevations is it reasonable to hear each FM sat using a THD-72 (listening VFO A). What other places might I look for reduced performance?
Thx and 73
de John, C6ATS
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