GPS Receiver Card Motorola M12+ Furuno GT-8031 Pentar SA101 /Good TIME Bad DATE [Used]

Furuno GT8031 Based GPS Receiver Card • Motorola M12+ Clone • Pentar Model SA101 • Correct Time (and 1PPS) - Incorrect Date Description This card will obtain the correct time from the GPS system, but the date will be 1024 weeks in the past due to a week number rollover event affecting the Furuno GT-8031 module.  This was removed from a working GPS receiver which was being upgraded (a Symmetricom Syncserver, so this card will not fix a Syncserver/XLi/XL-GPS unit that stopped syncing in September 2022). The card was tested for correct operation (aside from the date issue) before the unit was disassembled.  If your M12+ based device is working but has suffered a week number rollover event (ie. the date reported is nearly 20 years in the past) then installing this card will not rectify that issue.  If your need is for correct GPS time and/or an accurate 1PPS rate (which is what is used to discipline most GPS receivers' 10MHz oscillators) then it should work well. A significant proportion