n3ffn Posted March 17, 2003 Posted March 17, 2003 I just installed the latest sotware 3.20 from 3.10 and now I am constantly losing satellite reception. This is in my car in the same position that almost never lost gps reception, anybody have this problem? Can software effect receiver sensitivity? Quote
+GOT GPS? Posted March 17, 2003 Posted March 17, 2003 Take the GPS out in an open area, turn it on, then leave it there for at least 15 to 20 minutes. This will install a new almanac in the receiver, and improve performance. The GPS has to sit still during this time, and it is a good idea that there are no trees & such in the way. I have 2 identical GPS units, and find that over time the updated unit will come back to proper performance. They are the GPS V, and when I upgraded the new one, it did really badly, but I put the gps out in open sky for awhile, and now it matches the older gps. They both have different firmwares. Always different...Hit refresh [This message was edited by GOT GPS? on March 17, 2003 at 12:43 PM.] Quote
+Faderaven Posted March 17, 2003 Posted March 17, 2003 on my Vista. That was while I was walking down the street. Let my heart be still a moment and this mystery explore Quote
n3ffn Posted March 18, 2003 Author Posted March 18, 2003 I put the vista on a fence post out in the open this morning for about a half hour and now it works perfectly! With the vista my car It never lost reception in a 22 mile trip. Thanks for the help. Quote
The Foster Clan Posted March 18, 2003 Posted March 18, 2003 This may be a dumb question but how do you know when the almanac has been download? Is there a way to check? Jon. Come visit us on the web!! The JJ&C Railroad Quote
+apersson850 Posted March 18, 2003 Posted March 18, 2003 Take a look at the sat page. First, when you have no almanac data in the unit, all satellites are shown due north. When all available satellites are shown in their proper position, enough of the almanac has been loaded to determine that. Then there is ephimeris data too, which has to be loaded to get a proper accuracy. But that you can't see on the GPS, as far as I know. Anders Quote
+GOT GPS? Posted March 18, 2003 Posted March 18, 2003 Comparing it to a second gps may help,when you are looking at the satellite pages. It does not have to be an identical gps. Quote
The Foster Clan Posted March 18, 2003 Posted March 18, 2003 The night I bought our new Legend, I updated the software to version 3.20 then put the GPS on the window ledge while we watched a movie so it would get the almanac again etc. It's always worked just fine but I was just wondering... Thanks, Jon. Come visit us on the web!! The JJ&C Railroad Quote
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