[time-nuts] Garmin GPS12XL V3.51

[Joe Leikhim]

Thanks Peter; I will give that a whirl. It seems Garmin must have made this tool to push the EOW out for maintenance purposes. Good thing I have the cable!

"Message: 12
Date: Mon, 8 Apr 2019 14:09:55 +0100
From: Peter Vince<petervince1952 at gmail.com>
To: Discussion of precise time and frequency measurement
	<time-nuts at lists.febo.com>
Subject: Re: [time-nuts] Garmin GPS12XL V3.51
Message-ID:
	<CAJqU6XMma7N+JZdt83sHUuHLiGn8NfkbMXtSjvb-s0C-AvzXWg at mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"

I dug out my old Garmin GPS-III's (mid 1990's vintage !).  The internal
backup batteries had completely died after many years of non-use, so it
took a while for them to find the satellites, but when they did, they, of
course, came up with an August 1999 date.  A quick "Google" found that
someone is hosting a zipped Windows executable (apparently originally from
Garmin) that you run when the satnav is connected to your PC via a serial
cable, and it corrects whatever internally so that the date is reported
correctly.  Works like an absolute charm!  The program doesn't say it is
specifically for the GPS-III, so it might be using a standard
(undocumented, of course!) message that will work on a whole bunch of
receivers.  Might be worth giving it a try?  See:

      https://sites.google.com/site/gnbaddeley/GpsEow_V1.20_PC_Software.zip

Regards,

      Peter
"

-- 
Joe Leikhim


Leikhim and Associates

Communications Consultants

Oviedo, Florida

JLeikhim at Leikhim.com

407-982-0446

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