[amsat-bb] Re: Antennas For AO-7 Mode A
Patrick STODDARD (WD9EWK/VA7EWK)
amsat-bb at wd9ewk.net
Mon Oct 24 11:31:19 PDT 2011
> I'm looking for a suitable antenna that I can use to operate over AO-7 in
> mode A . The main requirement that it be hand-held.
Other than what KA3HSW suggested, the closest thing to a handheld
10m antenna may be a whip of some sort. Or possibly go with some
sort of wire antenna. Still not truly handheld, but a small antenna for
10m will make hearing the downlink a tough exercise.
During the past summer, I took out my Buddipole dipole and its 8-foot
mast and tripod to work with AO-7 in mode A. I settled on an L
configuration, where the horizontal part of the antenna pointed toward
the satellite. I would move the antenna every minute or so, and held
my Elk antenna toward the satellite for the 2m uplink. That worked
OK, but not great. I could easily hear my 5W CW signals from an
FT-817ND through the mode A transponder. It was much harder
when I went to SSB at the same power level. I made one mode A
SSB QSO with W7JPI, and that was hard work. Now that I have a
back yard to work from, coupled with the end of the summer heat
here in Arizona, I may revisit that over the next few months.
Good luck, and 73!
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