[time-nuts] WTB: GPS Antenna Splitter

[John C. Westmoreland, P.E.]

 Björn,
Thanks for letting us know - price isn't too bad - gotta love the P/N - ZAP
D - makes you wonder if they have a sense of humor.

Regards,
John W.


*Ordering,Pricing & Availability Information*
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Shopping Cart1-45-910-24>=25(+) Symbol indicates this Model is
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Stock$ 74.95$ 74.95$ 64.95$ 63.95-

On Tue, Oct 7, 2014 at 4:43 AM, "Björn Gabrielsson" <bg at lysator.liu.se>
wrote:

> Hi,
>
> For those with a junk basket full of generic splitter/combiners and
> DC-blocks, go ahead and put something together. Note that most receivers
> wish to have a DC-load of around 200ohm to not raise antenna fault alarms.
>
> I have not found a dedicated GPS splitter cheaper than this from
> Mini-Circuits
>
>     http://217.34.103.131/pdfs/ZAPD-2DC+.pdf
>
> When trolling the online auction sites, GPS Source and GPS Networking
> splitters are often less pricy than the HP/Agilent/Symmetricom/Microsemi
> ones.
>
> --
>
>     Björn
>
> > 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
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