My Northstar GPS works fine except about every 10 or 15 min. it loses the signal and a flashing ! icon appears in the lower right hand corner of the screen. After about 2 min. the screen returns to normal operation.Does anyone know what causes that to happen.
It would be good to make sure that the 951 software is up to date. The most recent software upgrade includes new code required due to changes that have been made to the GPS system. You can download the software for free from the Northstar web site but it requires a loader cable, power supply and a Windows based PC to perform the update. Most Noprthstar dealers know how to do this but they will charge for their time. The GPS antenna should be mounted where it has a 360 degree uninhibited view of the sky right down to the horizon to get best performance. Basicially any conductive material including pigmented paint, tinted glass or wet canvas can block the signal. Inspect the GPS coaxial cable and it's connections for any signs of corrosion or contamination. Sometimes just removing and reinstalling the connections is enough to remove contamination and get better performance. If in doubt concerning the coax and it's connections, temporaily substitute a new coax assy by-passing the existing cable to see if this makes a difference. You can monitor changes from the GPS status page. See the user manual for information concerning how to understand the numbers being presented. You should be tracking at least 4 SATs with signal levels higher than 30. Generally 95% of all GPS signal issues are related to the coax or its connections.
coax assy to v
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Make sure that your GPS is mounted under the windshield so it ahs free access to signal. Aside from that, be sure it is mounted parrallel to the ground so that the screen is completely "horizontal." This model seems notorious for lack of signal ability so if that doesnt' work you may just need to put up with it until you upgrade.
Best of luck!
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how old is you Gps antena ,with a older one it can happen that they lose fix
Where is the Gps antena fixed inside the boat or outside
Allway try to put tha antana outside. abou 20 % more signal
Look after the antenakabel if the kabel is a little bit broken water coms inside thae kabel an the signal gets lower.
Mine did the same, and said no gps no fix. I called the factory, now called Northstar, tech said to reset unit, and it worked. Great signal strength. Turn unit on and access menu, access factory settings,hit factory reset. However you will lose all your waypoints.
charge the battery fully, then set it outside in clear view of the open sky. it may take as much as 30 minutes to acquire the sats if that fails, try and leave it out longer...does it appear to try and link to ANY sats. on the map screen in the top righ t corner is a icon with bars in it, tap that and you should see it trying to acquire sats. if not, you might have other problems
I suddenly lost the GPS signal today and could not get it back. All I got was the "No valid GPS signal". My solution was to tap on the GPS satellite bars when in the route map. this brought up the "Status summary page of the TOMTOM.
I then again tapped the satellite bar which brought up the "GPS Status" page. I then tapped the bar labeled "configure".
The radio button next to the option titled "Minutes (dm.m') was selected. I then moved the selection to "Degrees (d.d) and it started working.
I had just downloaded the GPS fix 5 days ago so it is not like this suddenly caused it to stop working.
This may not work for everyone but this is what it took to get mine working.
Not updating your GPS isn't going to cause signal loss. Push the options key, go to configuration, then to diagnostics, scroll down.. select reset gps. it will say it takes 5 min. to relocate.. etc. see if that fixes it. If it doesn't fix then when you restart your unit and the user menu appears. Press "-" key and "repeat" button at the same time.. then select clear gps user data or.. user data gps... something to that nature.. Hope this works out for ya.