Hi folks,
Just a quick note to the group that, now that AO-51 is no longer in mode LU, I've finished the L-band Helix antenna. Photos are at the bottom of the page at: http://home.wavecable.com/~ko6th There's a weak carrier off to the West of here, and it seems a bit stronger than with the makeshift Quagi I had before. So, I'll call it a success. Thanks to all for your help,
Greg KO6TH p.s. if for some odd reason you've bookmarked my projects page, note that we've changed service providers, and have a new URL.
----Original Message Follows---- From: "Patrick STODDARD (WD9EWK/VA7EWK)" amsat-bb@wd9ewk.net Reply-To: amsat-bb@wd9ewk.net To: AMSAT-BB amsat-bb@amsat.org Subject: [amsat-bb] Re: AO-51 Mode L uplink LHCP or RHCP? Date: Sat, 16 Jun 2007 19:15:45 -0700
Ok, in a little panic here... Building a helix to get a bit more gain on the AO-51 mode L uplink, and I just realized that I don't know if it
should
be Left or Right-hand polarized. Which way should it go?
Not sure which way will really matter, since the AO-51 L/S antenna is not circularly polarized. It's explained in Gould Smith's AO-51 book, and also in the following PDF:
http://www.amsat.org/amsat-new/echo/OSCAR-E_Status_Report_5.pdf
Page 7 in the PDF has a photo of the antenna and a brief description of it.
73!
Patrick WD9EWK/VA7EWK http://www.wd9ewk.net/ _______________________________________________ Sent via AMSAT-BB@amsat.org. 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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