I got a Garmin GPS 45

[steve kc7byp]

I work for the Veterans Warehouse Thrift Store in Kennewick, Wa in the electronics dept. I picked up a Garmin GPS 45 GPS receiver at the thrift store. The GPS receiver is complete, un-opened in the original box with the manual. It has been a while since I setup a new (or messed with one period) GPS receiver. The receiver is seeing the satellites on the satellite screen but that is far as I can get the receiver to go.  I press the page > then I have the menu page, I go to the operation setup page. I set the offset and the correct time isn't showing up and the date is showing 18-Jan-00 and I can't scroll to the date to change it.  Is it me or is there something wrong with the receiver?

[+Kalkendotters]

The GPS45 is a very old GPS (25 years!), and has a problem with the week rollover from the GPS system. See an explanation of garmin: https://support.garmin.com/en-US/?faq=zWQY6Z2kFiAuY9kDnDBgZ6

I don't think there is a firmware update for it to correct the EOW so you will have a wrong date 'forever'

 

On https://www.javawa.nl/rollover.html  there is a link to a program to update the almanac of the GPS with https://www.javawa.nl/downloads/garmin/GpsEow_V1.20_PC_Software.zip it does not say wheter it does work with the GPS45, but you can try.

[JaVaWa]

GpsEow works with almost all serial Garmin devices, as long as they can communicate using the Garmin protocol. I can confirm that it works with the GPS 45.

Exceptions are the GPS 100 (the first model from Garmin), and early versions of the GPS 50.