[email protected] wrote:
Hello..... We built the " 10mhz simple GPSDO from boards supplied by G3RUH.
(Using the Jupiter GPS receiver)
Questions:
Has anyone built one,
How well does it work
I haven't built one, but people who have say its performance is
comparable to commercial units. Check out
http://www.leapsecond.com/pages/gpsdo .
How exactly is the RS232 output connected to a XP computer ?
Is the RS323 /software protocol the only way to tell if this thing is actually
working ?
We are using a trimble ( new) active antenna, mounted with a clear view of the sky.
Does this Jpiter receiver need to be reset before use ?
How do we tell if we are in a location that is in view of satellites ?
The more sky you can see, the better. If you only have a clear view of
the northern sky you could have problems. The GPS satellites' orbits
result in a large hole over the poles. See
http://www.realhamradio.com/images/GrahamGPS.jpg and
http://www.ae.utexas.edu/courses/ase389p7/projects/svatek/images/skyplot3.jpg
.
There's lots of info online on the Jupiter board and software and
hardware addons for it. It's a very popular unit.
Reply off list is just fine... The truth is, we are a bit frustrated with all of this gps business, and wonder if its worth any more time . Sorry for the long list of grumblings.
There's always that darn learing curve with a technology that's new to
you. Stick with it.
Ed
Thank You
Kiss-Electronics
Ms Ashley Hall
183 N 5th Avenue
Cornelius, Oregon
97113
W7DUZ
www.kiss-electronics.com
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