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Old 12-12-2011, 03:02   #1
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GPS Problem

I am using the latest version of OpenCPN with Win7, but this problem started with the last version. I had unplugged my "mouse" GPS for a few weeks because I was using the USB port for something else and am on the dock anyway. Previously, I encountered no problems with using this receiver with OpenCPN.
When I reconnected, my display indicated no GPS position was being received. Upon checking the toolkit and clicking on the "show data stream", I found that data was coming in but not reacting with the program. I was doing nothing differently from before when the GPS position was received and displayed properly. Switching to another GPS which I know works on my other XP computer yielded exactly the same results.
Needless to say this is frustrating and will be a huge problem when I put to see again.

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Old 12-12-2011, 03:28   #2
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Re: Gps problem

Are you sure your gps has a fix. Opencpn will only react to a fix although data is incoming. Can you capture some of the incoming nmea data stream and post it here. Are you sure your gps is not in any sort of demo mode. Have you tried to use the free franson gate to inout the gps data and output it to OpenCPN. Franson Gate also has a GPS simulator mode you can output to OpenCPN.


Richard Fairman

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Old 12-12-2011, 07:02   #3
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Re: Gps problem

Well, after several weeks of this problem, the thing seems to have spontaneously fixed itself. Go figure. Anyway, thanks for the input.
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Old 12-12-2011, 07:04   #4
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Re: Gps problem

Greetings and welcome aboard the CF, rendezvous.
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"

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Old 13-12-2011, 08:20   #5
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Re: GPS Problem

i just started too use opencpn 2.5
i found the com port number changes if you plug the usb in a different usb port
also I was not able to see the BU 353 gps in win7 but could in xp compatable mode
hope this helps
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