Hi:
This works great and has minimal cost.
http://www.prc68.com/I/4GPS.shtml
Have Fun,
Brooke Clarke
http://www.PRC68.com
http://www.end2partygovernment.com/2012Issues.html
http://www.prc68.com/I/DietNutrition.html
John C. Westmoreland, P.E. wrote:
Dave,
Can you please let us know what you go with for your splitter choice?
I noticed companies like EndRun Technologies use ones from these folks:
http://gpsnetworking.com/GPS-antenna-splitters.asp
TESSCO might stock those if you ask them.
Regards,
John W.
On Mon, Oct 6, 2014 at 6:09 PM, Bob Camp <[email protected]> wrote:
Hi
Missed the survey question…
If a ns in free air is about 1 foot (30 cm), then you probably want a
survey that is better than 6” to keep the error down. You do not want to
have the antennas on top of each other, so yes, the GPS will need a survey
/ location each time you change antennas. If you go with the 10’ spacing,
then you will get some pretty big jumps without switching the location.
Bob
On Oct 6, 2014, at 4:01 PM, Dave M <[email protected]> wrote:
Does anyone in the group have, or can point me to, a low-cost (but not
cheap) 2-port splitter for a GPS antenna? Those on Ebay are rather
expensive.
I have two GPSDO units, and have both an older timing antenna and a new
choke ring antenna (Thanks, Pete L). I already have one 2-port splitter
(working well), but my intent is to connect both antennas through the
splitters and a couple coaxial relays so that I can, with the twist of a
switch, allow me to run each GPS from a different antenna, or both from
the
same antenna. I would like to gather some data as to the differences
between the two antennas. I know I could switch the connections
manually,
but I like the idea of a switch to sort of automate the connections, and
I'd
need another splitter anyway.
Before I go to the trouble and expense of building upon this idea, are
there
any comments as to the value of the project?
Some questions come to mind:
I'm thinking about mounting both antennas on the same mast, at the same
elevation, just separated by a couple feet. Any problems that I should
be
aware of by putting both antennas so close together? Will that small
distance have a noticeable effect when switching a receiver from one
antenna
to the other? Will the GPS notice the difference and want to do another
survey?
Thanks for your comments.
Dave M
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