All, New article on problems with older GPS receivers and PRN32: http://sidt.gpsworld.com/gpssidt/System+Design+and+Test+News/Older-Marine-GPSAIS-Systems-Troubled-by-PRN32/ArticleStandard/Article/detail/502133?contextCategoryId=33831 Regards, Bill

Hello All; I checked my Tom-Tom One XL today, and #32 showed up on the satellite screen, although it's signal strength bar was "grayed out", even though the signal strength was higher than most of the other satellites. I'm guessing that this means the GPS was seeing #32 as unhealthy, or was otherwise not using it. The unit was working otherwise. Tom Frank, KA2CDK

From: "Thomas A. Frank" <ka2cdk@cox.net> Subject: Re: [time-nuts] GPS World Article on PRN-32 Date: Tue, 11 Mar 2008 21:36:01 -0400 Message-ID: <0A7CCC17-BE7B-4B4D-8619-2C3D462D8A45@cox.net> > Hello All; > > I checked my Tom-Tom One XL today, and #32 showed up on the satellite > screen, although it's signal strength bar was "grayed out", even > though the signal strength was higher than most of the other satellites. > > I'm guessing that this means the GPS was seeing #32 as unhealthy, or > was otherwise not using it. It is the local receiver that does not track it particularly well, can be reception problems. My TomTom GO 920T tracks it perfectly. Be sure to use an external antenna when using the TomTom in the car, everyone should be doing that. Much better skyview that way, which improves precission. Mine also has a simple form of IMU... Cheers, Magnus

>> I checked my Tom-Tom One XL today, and #32 showed up on the satellite >> screen, although it's signal strength bar was "grayed out", even >> though the signal strength was higher than most of the other >> satellites. >> >> I'm guessing that this means the GPS was seeing #32 as unhealthy, or >> was otherwise not using it. > > It is the local receiver that does not track it particularly well, > can be > reception problems. My TomTom GO 920T tracks it perfectly. > > Be sure to use an external antenna when using the TomTom in the > car, everyone > should be doing that. Much better skyview that way, which improves > precission. > Hi Magnus; It isn't a reception problem, as the signal strength bar for 32 is at full height. Just grayed out. It simply isn't using the satellite for some reason. I'll let the battery die (and hopefully lose the ephemera data) and restart and see what happens. Tom Frank, KA2CDK