This last pass up the west coast. Very good strong downlink, running a 910 @ 10W to a 16 turn RHCP helix through 40 feet of LMR400. Even good copy running 2 watts! Rx 40 el cp yagi. Early in the pass RHCP was better for rx, later and near LOS LHCP was better. Why? Only station heard was VE7CNA and he was very weak, aside from that I could only talk to myself. I know we have some L banders on the "left" coast and up there in KL7. It's lonely.
73 Bob W7LRD
Bob,
Neat observation. I was on this morning and worked Luc, VE2DWE and only Luc. I found LHCP to be much much better on the downlink for the entire pass, which is what I expected. I was under the impression the 435.150 antenna was LHCP. The pass this morning was close to directly overhead. Was your pass near the horizon east or west?? Maybe it is a squint angle issue?
73, Joe kk0sd
P.S. I hope to get on L band again, but my schedule is conspiring against me!
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Bob- W7LRD Sent: Monday, April 26, 2010 8:20 PM To: [email protected] Subject: [amsat-bb] AO-51 L mode observations
This last pass up the west coast. Very good strong downlink, running a 910 @ 10W to a 16 turn RHCP helix through 40 feet of LMR400. Even good copy running 2 watts! Rx 40 el cp yagi. Early in the pass RHCP was better for rx, later and near LOS LHCP was better. Why? Only station heard was VE7CNA and he was very weak, aside from that I could only talk to myself. I know we have some L banders on the "left" coast and up there in KL7. It's lonely.
73 Bob W7LRD _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
participants (2)
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Bob- W7LRD -
Gary "Joe" Mayfield