[time-nuts] Re: EOL Trimble 99889-00 : Protempis replacement ?

[Ed Marciniak]

Is <7us holdover a drop in replacement for the Trimble part? More to the point, does software require adjustments to completely ignore the module during holdover with such awful performance limits?
________________________________
From: Gregory Beat via time-nuts <time-nuts at lists.febo.com>
Sent: Monday, September 11, 2023 2:18:24 PM
To: time-nuts at lists.febo.com <time-nuts at lists.febo.com>
Cc: Gregory Beat <w9gb at icloud.com>
Subject: [time-nuts] EOL Trimble 99889-00 : Protempis replacement ?

Trimble has declared their Resolution-SMT GPS chipset (Trimble 99889-00)
found on the 66226-A1 GPS Timing Module Carrier Board as End of Life.
So, as expected the normal Surplus avenues are beginning to show these Trimble GPS/GNSS boards for sale.
==
Protempis, a GNSS chip company appears to have a multiple constellation GNSS receiver for the Timing market, that is Pin-compatible.
I have not looked at detailed pricing.
https://www.protempis.com/_files/ugd/cd4160_9105468f94c84954ba04ac5e2781b088.pdf

Has anyone attempted this “Brain Surgery” swap on the Trimble carrier board ?
It would require Hot Air handpiece and Surface Mount skills.

greg
w9gb
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