On Sat, 17 Jan 2004 19:35:20 -0800, "Chuck Tribolet"
wrote:

Larry, this is one of the rare occasions when you are wrong. Different
geostationary birds will have different elevations. The one straight
south of you will have an elevation of about 90 minus latitude degrees
and will be the highest. One 180 degrees around the world will
have a negative elevation.

--
Chuck Tribolet

http://www.almaden.ibm.com/cs/people/triblet

You are correctimundo, however as the GPS antenna is not pointable,
the website will give them a fair idea, within a few degrees, of the
elevation of any geostationary bird from their zip code. The further
north you go the worse the problem. The website won't tell them
EXACTLY how bad it is, but will give them a general idea.....

Hmm.....we could take one of these gyro stabilized DirecTV dishes,
replace the 10 Ghz feedhorn with a WAAS feed horn.....Nope, we're
gonna need a bigger dish to make it have more gain.....(c;

HEY, my neighbor has one of those REALLY BIG old satellite antennas
that's scrambled now he's not using!........hee hee.

On a more serious note, I don't believe the GPS has to have CONSTANT
WAAS data to make it accurate. The drift you get corrected for is
VERY slow moving, so if it had a lock on WAAS data every few minutes
that should be good enough for good correction, shouldn't it? I'd
think the manufacturers would tell the receiver to use the LAST
available data until new data arrives.



Larry W4CSC