[time-nuts] WTB: GPS Antenna Splitter

Peter Loron peterl at standingwave.org
Mon Oct 20 13:49:48 EDT 2014

Well, may memory was somewhat faulty. The units I have are 
3ZN2PD-1910-1. There is a seller on ebay with the same thing:


If anybody is interested, I'll let mine go for $20 shipped in USA each.


On 2014-10-15 16:43, Dave M wrote:
> Pete, I see a ZAPD-30 on the miniCircuits web site.  Might those be
> the models that you have?
> If so, (and assuming that you can find them), how much for a couple?
> Thanks,
> Dave M
> Peter Loron wrote:
>> Dave, I think I have a MiniCircuits ZAPD-3(?) splitter or two kicking
>> around. I'll try to get a look in the stash this weekend.
>> -Pete
>> On 2014-10-06 13:01, Dave M 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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