I got significant de-sensing of my 2 meter downlink from my 70cm uplink at Field Day. I know a good part of it was due to the short cross-boom (about 4 feet) I was using. I would like to decrease the de-sense on this set-up before I permanently install it at my home station. Any and all suggestions are welcome.
73 de W0HV, Jim in Raymore, MO Light travels faster than sound... This is why some people appear bright until you hear them speak.
Same here with TS-2000, 6ft *aluminium* boom and SSB Electronics masthead pre-amps.
I'm thinking about a 6ft to 9ft fibreglass boom anyway, I would be interested also in user comments.
Simon Brown, HB9DRV
-------------------------------------------------- From: "Reicher, James" [email protected]
I got significant de-sensing of my 2 meter downlink from my 70cm uplink at Field Day. I know a good part of it was due to the short cross-boom (about 4 feet) I was using. I would like to decrease the de-sense on this set-up before I permanently install it at my home station. Any and all suggestions are welcome.
I had problems on AO-40 several years ago. The problem was traced to the connection of a silver plated brass connector bolted to an aluminum surface where crossion had set in. Cleaning the connection stopped the 70 cm uplink from crashing my 13 cm receive.
Art, KC6UQH ----- Original Message ----- From: "Simon Brown (HB9DRV)" [email protected] To: [email protected] Sent: Monday, June 30, 2008 10:18 AM Subject: [amsat-bb] Re: Eliminating Desensing
Same here with TS-2000, 6ft *aluminium* boom and SSB Electronics masthead pre-amps.
I'm thinking about a 6ft to 9ft fibreglass boom anyway, I would be interested also in user comments.
Simon Brown, HB9DRV
From: "Reicher, James" [email protected]
I got significant de-sensing of my 2 meter downlink from my 70cm uplink at Field Day. I know a good part of it was due to the short cross-boom (about 4 feet) I was using. I would like to decrease the de-sense on this set-up before I permanently install it at my home station. Any and all suggestions are welcome.
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
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kc6uqh -
Reicher, James -
Simon Brown (HB9DRV)