Question about Garmin GPS
AS previously recommended, turn off the Waas then go to the garmin web site and download firmware version 3.70, this will update the unit to work with the changes which have been made to the WAAS satelites. Install the 3.70 into your unit then you can use WAAS again and should have no problems. It worked with mine
Posted on Jun 25, 2009
Possible Solution found on google....
My old Garmin 162 chartplotter was mounted on the binnacle guard and served me
well for many years. Lately, it started getting very slow to refresh screens.
At times, it would shut down with only a black vertical line on the screen. On
our last cruise, the screen froze at a very critical moment. Too old to
repair, I bought a new Garmin 440, which I am very disappointed with, but
that's another story.
I read an article in the GoodOldBoat newsletter about the Department of Defense
making changes to the WAAS satellites that have caused problems in Garmin 72
and 76. Garmin's tech support recommended to turn the WAAS function off on
affected units. So I got out my old 162 and turned the WAAS off and it works
fine. To make sure it wasn't a fluke, I turned it off and on several times,
and it always slowed down with WAAS turned on. With it turned off, the
position error or accuracy, increases 1-2ft, not a big deal. I hooked the unit
up on my truck and drove around. Not a problem. Further reading indicates
that other brands of GPS are also having problems with the new WAAS
So if you are having problems with your GPS and it is new enough to have WAAS,
try to turn it off
Posted on Nov 20, 2008
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Posted on Jan 02, 2017
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