[time-nuts] Re: GPS Splitter for L1, GNSS, etc?

[paul swed]

Thats why the satellite splitters are nice they have the blocking
capacitors built in with diodes to forward the highest voltage to the
antenna. But lots of great ways to solve the problem.
Paul

On Wed, Jun 2, 2021 at 11:23 AM Michael Klimenko <mklimenko29 at gmail.com>
wrote:

> Hello Scott,
>
> Currently, I'm using the Mini-Circuits ZESC-2-11+ power splitter for the
> GNSS receiver development, they're around $80 brand new, probably you may
> find them used for less. Bear in mind that they pass DC, which is good for
> powering the antenna, but may have some unexpected behaviour when two
> receivers will try to power each other, so grab an inline DC blocker as
> well.
>
> Sincerely,
> Michael
>
> On Wed, 2 Jun 2021 at 07:22, W7SLS <w7sls.scott at gmail.com> wrote:
>
> > Hello,
> >
> > Looking for group wisdom to avoid newbie mistakes with a GPS splitter.
> >
> > For context, I’m a home- not National- or University-Lab.
> > That said, I have a non-zero budget.
> >
> > Today:
> >         Antenna
> >         1- CORS RTK GNSS Survey Antenna high gain measurement GNSS GPS
> > GLONASS BDS <https://www.ebay.com/itm/253786590956>
> >         2 - patch antenna - works really well with Time Hat, even a few
> > meters way from window
> >
> >         Splitter
> >         1 - Symmetricom 58536A
> >
> >         Devices
> >         1 - Auction Site GPSDO
> >         2 - Leo Bodnar GPSDO
> >         3 - Time Hat <— wow!  a fan!
> >         4 - (on the way) 2nd Time Hat
> >
> >         Site
> >         - suburban, forest to the S, hill to the N
> >
> > Challenge:
> >
> >         Existing  splitter is L1 only (I think), which blocks the many
> > newer GPS satellites.
> >         With my compromised (for GPS) location, that’s not so good.
> >
> > I need / want a wider band GPS Splitter
> >
> >         1 - some posts talk about removing the bandpass filters in an
> > existing splitter
> >                 OK, but (a) it nukes any value of that splitter, and (b)
> > those filters also eliminate other interference (yes?)
> >
> >         2 - new choices seem to be in the $1000 and way above, outside of
> > my budget
> >
> >         3 - more interested in ‘ready to use’ than ‘have to add on
> > bypasses' to power the antenna (e.g., Cable TV splitter)
> >
> >         3 - auction site has numerous options, but I’m not sure how to
> > 'separate wheat from chaff’
> >
> >                 LOL, some of you may be the sellers :)
> >
> >                 several items $500+  <— more than I want to spend
> >                 several items $30 -   <— I’d rather not get  aTV antenna
> > splitter and a hobby to make it work
> >
> >                 324575653743  GPS Source S14 $175
> >
> >                 153359161105  GPS Antenna Splitter GPS/GLONASS L1 GALILEO
> > E1 BEIDOU B1- FedEx Fast Ship SV1AFN $120
> >
> >
> > Thoughts?   Thanks for the group bandwidth.
> >
> > Scott W7SLS
> >
> > PS:  yes the Symmetricom 58536A will be for sale after I replace it.
> > _______________________________________________
> > time-nuts mailing list -- time-nuts at lists.febo.com -- To unsubscribe
> send
> > an email to time-nuts-leave at lists.febo.com
> > To unsubscribe, go to and follow the instructions there.
> _______________________________________________
> time-nuts mailing list -- time-nuts at lists.febo.com -- To unsubscribe send
> an email to time-nuts-leave at lists.febo.com
> To unsubscribe, go to and follow the instructions there.