[aprssig] Latest on UIVIEW/GO-32/D7
gerheim at cox.net
gerheim at cox.net
Tue Oct 16 13:37:31 EDT 2007
Kewl. This'll save me some money and time.
I'll try to leave the SATGATE up for the night and morning passes tonight/tomorrow.
I have no idea what crashes/APO events, etc... may interfere, but please try to send up some APRS packets!
---- Robert Bruninga <bruninga at usna.edu> wrote:
> The GO-32 is eath-pointing stabilized. So it also has a hole
> strraight down, so little you can do on the ground to improve
> performance above say 70 degrees. And it is there only 2% of
> the time, so not worth giving up performance everywhere else to
> have gain where it is not needed.
> Bob, WB4APR
>
> > -----Original Message-----
> > THis brings up the other question about GO-32: the "hole"
> > above about 60 degrees elevation. How about a horizontal
> > dipole antenna oriented east/west. Its "holes" will be on
> > the east and west horizons, where a polar-orbiter will seldom
> > be detectable.
> >
> >> On all the "good" passes, the bird will be going
> >> through the donut, and not the hole.
> >>
> >> I wonder how an "eggbeater" antenna would work
> >> compared to the to the standard 18/19" whip?
>
> Yes/now. Eggbeater will have coverage in the hole, but because
> it is circular polariszed, it is giving up 3 dB of performance
> everywhere else...
>
>
>
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--
-Al Gerheim
HP-49G+ Software Page:
http://members.cox.net/above
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