Furuno GT-8031 GPS Receiver Card (Motorola M12+ Clone) Pentair SA101 GUARANTEED

Description

Furuno GT8031 Based GPS Receiver Card • Motorola M12+ Clone • Pentair Model SA101
Tested/Guaranteed
Description
This was removed from a working GPS receiver which was being parted out (a Symmetricom SyncServer). The card was tested for correct operation before the unit was disassembled.
A significant proportion of the industrial/laboratory GPS time receivers produced over the last 20 years use this type of GPS receiver card (but not all, so check yours before ordering). The original M12 receiver was produced by Motorola from about 2001. When Motorola later quit the GPS business a few other manufacturers entered the market with modules that were clones of the Motorola design - having the same physical size, electrical contacts/specifications and communications protocols.
From Furuno in Japan, the GT-8031 GPS receiver module is used in the best selling M12+ clones and can be found in an installed base of many thousands of GPS receivers from Symmetricom, Arbiter and many others.
If your unit has one of this range of cards (60mm x 40mm in size with a 5x2 connector pin matrix on the underside) which has failed then this may well get you back on the air again. GPS cards frequently fail due to surges from nearby lightning strikes so they are usually engineered to be easily field-swappable. Just remove the four retaining bolts and unplug the MMCX connector and replace with this card. You may need to install the latest firmware if you're not running it already, but usually a hardware swap is all that is required.
If your M12 based device is working but has suffered a week number rollover event (ie. is showing a date 1024 weeks/nearly 20 years in the past) then this card should correct that problem and get you back up and running so that you can get some more useful life from your hardware.