[time-nuts] WTB: GPS Antenna Splitter

Brooke Clarke brooke at pacific.net
Tue Oct 7 01:22:16 EDT 2014


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 <kb8tq at n1k.org> 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 <dgminala at mediacombb.net> 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
>>> _______________________________________________
>>> time-nuts mailing list -- time-nuts at febo.com
>>> To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>>> and follow the instructions there.
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at febo.com
>> To unsubscribe, go to
>> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>> and follow the instructions there.
>>
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
>




More information about the time-nuts mailing list