The ePMP GPS is just like the old 450AP's on-board GPS. You don't
necessarily need the external antenna. The GTop receivers have a
built-in antenna. Obviously the problem is they're facing at the horizon
and tower steel, etc. I have several 1k GPS for PTP links. I didn't need
the GPS, just the gigabit ethernet. They do not have the pucks attached.
They're on Rocket dishes facing into a mast and tower steel. Most of
them are tracking 14+ out of 20+ sats. I've said several times before,
the newer GTop GPS+GLONASS receivers just work better.
If the radio is seeing no data, then the receiver is probably locked up
and you'll have to power cycle it. If you're seeing 0 tracked and maybe
0 or a few available sats, then the receiver is confused, or it's seeing
lots of multipath or possibly noise. You can try a power-cycle first,
and if that doesn't do anything, then try moving the puck. If it's in
the top of the Cambium OEM antenna, then I guess you're kinda screwed
for moving it.
Easiest solution: SyncInjector/PowerInjector+Sync and a 'Pipe or 'Box.
On 8/24/2017 11:49 AM, Adam Moffett wrote:
How often do ePMP GPS antennas fail?
We had 3 fail in the past month, so I was wondering if they have an
expected lifespan of some sort.