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Old 26-01-2023, 09:00   #1
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gps puck not working with opencpn

I have an external gps puck attached to a windows 10 laptop computer with OpenCpn running and can not get the gps location to show..
I can see the GPS data in the NMEA Debug Window so I know the program is receiving the GPS data but it will not show in the upper right hand corner Satellite indicator nor will it move the boat to my current location..
The computer and puck set up must be correct or I would not see any data in the Debug Window..
Any clue would help..
Thanks
John
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Old 26-01-2023, 09:17   #2
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Re: gps puck not working with opencpn

John..
Are the data from the puck containing anything with a position fix?
Do the puck see any satellites or is it indoor?
Sometimes a new receiver can take many hours to locate itself and send useful data.
If in doubts copy any $xxRMC or $xxGGA messages seen in the Debug window for further examination here if you can't see yourself if it shows a valid position.
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Old 26-01-2023, 15:37   #3
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Re: gps puck not working with opencpn

This is a paste from the Opn Connections Debug Window..
It is constantly receiving data....
Ive tried changing the Bits per second from 9600 to 3400 (in both Ocpn and the computer) and the Debug Window shows active data in both...


<GREEN>17:30:50 (Serial:COM9) $GPVTG,,,,,,,,,N*30<0x0D><0x0A>
<GREEN>17:30:50 (Serial:COM9) $GPGGA,,,,,,0,00,99.99,,,,,,*48<0x0D><0x0A>
<GREEN>17:30:50 (Serial:COM9) $GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30<0x0D>< 0x0A>
<GREEN>17:30:50 (Serial:COM9) $GPGSV,1,1,01,01,,,10*78<0x0D><0x0A>
<GREEN>17:30:50 (Serial:COM9) $GPGLL,,,,,,V,N*64<0x0D><0x0A>
<GREEN>17:30:51 (Serial:COM9) $GPRMC,,V,,,,,,,,,,N*53<0x0D><0x0A>
<GREEN>17:30:51 (Serial:COM9) $GPVTG,,,,,,,,,N*30<0x0D><0x0A>
<GREEN>17:30:51 (Serial:COM9) $GPGGA,,,,,,0,00,99.99,,,,,,*48<0x0D><0x0A>
<GREEN>17:30:51 (Serial:COM9) $GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30<0x0D>< 0x0A>
<GREEN>17:30:51 (Serial:COM9) $GPGSV,1,1,02,01,,,10,02,,,27*7C<0x0D><0x0A>
<GREEN>17:30:51 (Serial:COM9) $GPGLL,,,,,,V,N*64<0x0D><0x0A>
<GREEN>17:30:52 (Serial:COM9) $GPRMC,,V,,,,,,,,,,N*53<0x0D><0x0A>
<GREEN>17:30:52 (Serial:COM9) $GPVTG,,,,,,,,,N*30<0x0D><0x0A>
<GREEN>17:30:52 (Serial:COM9) $GPGGA,,,,,,0,00,99.99,,,,,,*48<0x0D><0x0A>
<GREEN>17:30:52 (Serial:COM9) $GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30<0x0D>< 0x0A>
<GREEN>17:30:52 (Serial:COM9) $GPGSV,1,1,01,02,,,23*7B<0x0D><0x0A>
<GREEN>17:30:52 (Serial:COM9) $GPGLL,,,,,,V,N*64<0x0D><0x0A>
<GREEN>17:30:53 (Serial:COM9) $GPRMC,,V,,,,,,,,,,N*53<0x0D><0x0A>
<GREEN>17:30:53 (Serial:COM9) $GPVTG,,,,,,,,,N*30<0x0D><0x0A>
<GREEN>17:30:53 (Serial:COM9) $GPGGA,,,,,,0,00,99.99,,,,,,*48<0x0D><0x0A>
<GREEN>17:30:53 (Serial:COM9) $GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30<0x0D>< 0x0A>
<GREEN>17:30:53 (Serial:COM9) $GPGSV,1,1,01,02,,,19*72<0x0D><0x0A>
<GREEN>17:30:53 (Serial:COM9) $GPGLL,,,,,,V,N*64<0x0D><0x0A>
<GREEN>17:30:54 (Serial:COM9) $GPRMC,,V,,,,,,,,,,N*53<0x0D><0x0A>
<GREEN>17:30:54 (Serial:COM9) $GPVTG,,,,,,,,,N*30<0x0D><0x0A>
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Old 26-01-2023, 16:21   #4
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Re: gps puck not working with opencpn

Code:
$GPRMC,,V,,,,,,,,,,N*53<0x0D><0x0A>
is a perfectly valid sentence. The initial "V" of a GPRMC indicates an invalid or poor quality fix

Make sure your GPS puck has a clear view of the sky and just be patient. If the puck has not been used in a while it needs to download the almanac from the satellites.
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Old 26-01-2023, 21:02   #5
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Re: gps puck not working with opencpn

Ok.. sounds like a plan..
I will set it up the puck and computer and keep it running over night.. that should do it for time to download..
I will put the puck in a window with clear view of the western sky from Virginia US..
I will let you know tomorrow..
Thanks..
John
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Old 26-01-2023, 22:30   #6
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Re: gps puck not working with opencpn

The GSV sentences in your sample provide information on the satellites in view. The third value in the sentence is the number of satellites in view, in the sample 01 or 02, and without their details, indicating the GPS is not seeing the satellites. So, when it has been up for the night, check also the GSV sentence to see what it has to say.

Quote:
$GPGSV,1,1,01,02,,,23*7B<0x0D><0x0A>
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Old 27-01-2023, 11:19   #7
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Re: gps puck not working with opencpn

Ok.. its been up all night.. and I tried two things because I became suspicious of the output of the puck..


This is with the puck wrapped in alumin foil and put in my bottom desk draw between two packages of printer paper...


<GREEN>13:02:25 (Serial:COM9) $GPVTG,,,,,,,,,N*30<0x0D><0x0A>
<GREEN>13:02:25 (Serial:COM9) $GPGGA,180226.00,,,,,0,00,99.99,,,,,,*69<0x0D><0x0 A>
<GREEN>13:02:25 (Serial:COM9) $GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30<0x0D>< 0x0A>
<GREEN>13:02:26 (Serial:COM9) $GPGSV,4,1,13,02,04,031,,10,54,165,,12,11,129,,16, 01,328,*7E<0x0D><0x0A>
<GREEN>13:02:26 (Serial:COM9) $GPGSV,4,2,13,18,36,008,,23,59,098,,25,36,117,,26, 33,340,*73<0x0D><0x0A>
<GREEN>13:02:26 (Serial:COM9) $GPGSV,4,3,13,27,02,299,,28,53,239,,29,10,049,,31, 54,256,*78<0x0D><0x0A>
<GREEN>13:02:26 (Serial:COM9) $GPGSV,4,4,13,32,21,189,*49<0x0D><0x0A>
<GREEN>13:02:26 (Serial:COM9) $GPGLL,,,,,180226.00,V,N*45<0x0D><0x0A>
<GREEN>13:02:26 (Serial:COM9) $GPRMC,180227.00,V,,,,,,,270123,,,N*76<0x0D><0x0A>
<GREEN>13:02:26 (Serial:COM9) $GPVTG,,,,,,,,,N*30<0x0D><0x0A>
<GREEN>13:02:26 (Serial:COM9) $GPGGA,180227.00,,,,,0,00,99.99,,,,,,*68<0x0D><0x0 A>
<GREEN>13:02:26 (Serial:COM9) $GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30<0x0D>< 0x0A>
<GREEN>13:02:27 (Serial:COM9) $GPGSV,4,1,13,02,04,031,,10,54,165,,12,11,129,,16, 01,328,*7E<0x0D><0x0A>
<GREEN>13:02:27 (Serial:COM9) $GPGSV,4,2,13,18,36,008,,23,59,098,,25,36,117,,26, 33,340,*73<0x0D><0x0A>
<GREEN>13:02:27 (Serial:COM9) $GPGSV,4,3,13,27,02,299,,28,53,239,,29,10,049,,31, 54,256,*78<0x0D><0x0A>
<GREEN>13:02:27 (Serial:COM9) $GPGSV,4,4,13,32,21,189,*49<0x0D><0x0A>
<GREEN>13:02:27 (Serial:COM9) $GPGLL,,,,,180227.00,V,N*44<0x0D><0x0A>
<GREEN>13:02:27 (Serial:COM9) $GPRMC,180228.00,V,,,,,,,270123,,,N*79<0x0D><0x0A>
<GREEN>13:02:27 (Serial:COM9) $GPVTG,,,,,,,,,N*30<0x0D><0x0A>
<GREEN>13:02:27 (Serial:COM9) $GPGGA,180228.00,,,,,0,00,99.99,,,,,,*67<0x0D><0x0 A>
<GREEN>13:02:27 (Serial:COM9) $GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30<0x0D>< 0x0A>
<GREEN>13:02:28 (Serial:COM9) $GPGSV,4,1,13,02,04,031,,10,54,165,,12,11,129,,16, 01,328,*7E<0x0D><0x0A>
<GREEN>13:02:28 (Serial:COM9) $GPGSV,4,2,13,18,36,008,,23,59,098,,25,36,117,,26, 33,340,*73<0x0D><0x0A>
<GREEN>13:02:28 (Serial:COM9) $GPGSV,4,3,13,27,02,299,,28,53,239,,29,10,049,,31, 54,256,*78<0x0D><0x0A>
<GREEN>13:02:28 (Serial:COM9) $GPGSV,4,4,13,32,21,189,*49<0x0D><0x0A>
<GREEN>13:02:28 (Serial:COM9) $GPGLL,,,,,180228.00,V,N*4B<0x0D><0x0A>
<GREEN>13:02:28 (Serial:COM9) $GPRMC,180229.00,V,,,,,,,270123,,,N*78<0x0D><0x0A>
<GREEN>13:02:28 (Serial:COM9) $GPVTG,,,,,,,,,N*30<0x0D><0x0A>
<GREEN>13:02:28 (Serial:COM9) $GPGGA,180229.00,,,,,0,00,99.99,,,,,,*66<0x0D><0x0 A>
<GREEN>13:02:28 (Serial:COM9) $GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30<0x0D>< 0x0A>
<GREEN>13:02:29 (Serial:COM9) $GPGSV,4,1,13,02,04,031,28,10,54,165,,12,11,129,,1 6,01,328,*74<0x0D><0x0A>
<GREEN>13:02:29 (Serial:COM9) $GPGSV,4,2,13,18,36,008,,23,59,098,,25,36,117,,26, 33,340,*73<0x0D><0x0A>
<GREEN>13:02:29 (Serial:COM9) $GPGSV,4,3,13,27,02,299,,28,53,239,,29,10,049,,31, 54,256,*78<0x0D><0x0A>
<GREEN>13:02:29 (Serial:COM9) $GPGSV,4,4,13,32,21,189,*49<0x0D><0x0A>
<GREEN>13:02:29 (Serial:COM9) $GPGLL,,,,,180229.00,V,N*4A<0x0D><0x0A>



And this is in the window of my home facing west...


<GREEN>13:11:11 (Serial:COM9) $GPVTG,,,,,,,,,N*30<0x0D><0x0A>
<GREEN>13:11:11 (Serial:COM9) $GPGGA,181112.00,,,,,0,00,99.99,,,,,,*6C<0x0D><0x0 A>
<GREEN>13:11:11 (Serial:COM9) $GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30<0x0D>< 0x0A>
<GREEN>13:11:11 (Serial:COM9) $GPGSV,4,1,15,02,01,033,22,08,,,26,10,58,161,,12,0 8,131,25*42<0x0D><0x0A>
<GREEN>13:11:11 (Serial:COM9) $GPGSV,4,2,15,16,04,329,,17,,,15,18,33,010,,23,59, 089,*46<0x0D><0x0A>
<GREEN>13:11:11 (Serial:COM9) $GPGSV,4,3,15,25,34,121,,26,37,341,,27,03,303,,28, 51,232,*75<0x0D><0x0A>
<GREEN>13:11:11 (Serial:COM9) $GPGSV,4,4,15,29,09,052,,31,53,248,,32,21,185,*4C< 0x0D><0x0A>
<GREEN>13:11:12 (Serial:COM9) $GPGLL,,,,,181112.00,V,N*40<0x0D><0x0A>
<GREEN>13:11:12 (Serial:COM9) $GPRMC,181113.00,V,,,,,,,270123,,,N*73<0x0D><0x0A>
<GREEN>13:11:12 (Serial:COM9) $GPVTG,,,,,,,,,N*30<0x0D><0x0A>
<GREEN>13:11:12 (Serial:COM9) $GPGGA,181113.00,,,,,0,00,99.99,,,,,,*6D<0x0D><0x0 A>
<GREEN>13:11:12 (Serial:COM9) $GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30<0x0D>< 0x0A>
<GREEN>13:11:12 (Serial:COM9) $GPGSV,4,1,15,02,01,033,18,08,,,22,10,58,161,29,12 ,08,131,*43<0x0D><0x0A>
<GREEN>13:11:12 (Serial:COM9) $GPGSV,4,2,15,16,04,329,,17,,,09,18,33,010,,23,59, 089,*4B<0x0D><0x0A>
<GREEN>13:11:12 (Serial:COM9) $GPGSV,4,3,15,25,34,121,,26,37,341,,27,03,303,,28, 51,232,*75<0x0D><0x0A>
<GREEN>13:11:12 (Serial:COM9) $GPGSV,4,4,15,29,09,052,,31,53,248,,32,21,185,*4C< 0x0D><0x0A>
<GREEN>13:11:13 (Serial:COM9) $GPGLL,,,,,181113.00,V,N*41<0x0D><0x0A>
<GREEN>13:11:13 (Serial:COM9) $GPRMC,181114.00,V,,,,,,,270123,,,N*74<0x0D><0x0A>
<GREEN>13:11:13 (Serial:COM9) $GPVTG,,,,,,,,,N*30<0x0D><0x0A>
<GREEN>13:11:13 (Serial:COM9) $GPGGA,181114.00,,,,,0,00,99.99,,,,,,*6A<0x0D><0x0 A>
<GREEN>13:11:13 (Serial:COM9) $GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30<0x0D>< 0x0A>
<GREEN>13:11:13 (Serial:COM9) $GPGSV,4,1,14,02,01,033,17,08,,,21,10,58,161,25,12 ,08,131,*42<0x0D><0x0A>
<GREEN>13:11:13 (Serial:COM9) $GPGSV,4,2,14,16,04,329,27,18,33,010,,23,59,089,23 ,25,34,121,*73<0x0D><0x0A>
<GREEN>13:11:13 (Serial:COM9) $GPGSV,4,3,14,26,37,341,,27,03,303,,28,51,232,,29, 09,052,*73<0x0D><0x0A>
<GREEN>13:11:13 (Serial:COM9) $GPGSV,4,4,14,31,53,248,,32,21,185,*78<0x0D><0x0A>
<GREEN>13:11:14 (Serial:COM9) $GPGLL,,,,,181114.00,V,N*46<0x0D><0x0A>
<GREEN>13:11:14 (Serial:COM9) $GPRMC,181115.00,V,,,,,,,270123,,,N*75<0x0D><0x0A>
<GREEN>13:11:14 (Serial:COM9) $GPVTG,,,,,,,,,N*30<0x0D><0x0A>
<GREEN>13:11:14 (Serial:COM9) $GPGGA,181115.00,,,,,0,00,99.99,,,,,,*6B<0x0D><0x0 A>
<GREEN>13:11:14 (Serial:COM9) $GPGSA,A,1,,,,,,,,,,,,,99.99,99.99,99.99*30<0x0D>< 0x0A>
<GREEN>13:11:14 (Serial:COM9) $GPGSV,4,1,13,02,01,033,,10,58,161,23,12,08,131,,1 6,04,329,*75<0x0D><0x0A>
<GREEN>13:11:14 (Serial:COM9) $GPGSV,4,2,13,18,33,010,22,23,59,089,21,25,34,121, 26,26,37,341,*7A<0x0D><0x0A>
<GREEN>13:11:14 (Serial:COM9) $GPGSV,4,3,13,27,03,303,,28,51,232,,29,09,052,,31, 53,248,*78<0x0D><0x0A>
<GREEN>13:11:14 (Serial:COM9) $GPGSV,4,4,13,32,21,185,*45<0x0D><0x0A>
<GREEN>13:11:14 (Serial:COM9) $GPGLL,,,,,181115.00,V,N*47<0x0D><0x0A>


I'm missing something or I am doing something wrong... I should not have an output with it wrapped in aluminum foil...
I am working with a laptop with no connection to the internet.. wifi is turned off..
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Old 27-01-2023, 12:39   #8
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Re: gps puck not working with opencpn

You should simply take it out, somewhere where there is a clear view of the sky.
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Old 28-01-2023, 03:29   #9
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Re: gps puck not working with opencpn

And give the device time: it can take up to 20 minutes to get the almanach and hence the correct position.
Some GNNS will make the first fix faster, 5 minutes for a complete cold start are not unfrequent however.
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Old 28-01-2023, 09:24   #10
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Re: gps puck not working with opencpn

Quote:
Originally Posted by dunphyje View Post
I have an external gps puck attached to a windows 10 laptop computer with OpenCpn running and can not get the gps location to show..
I can see the GPS data in the NMEA Debug Window so I know the program is receiving the GPS data but it will not show in the upper right hand corner Satellite indicator nor will it move the boat to my current location..
The computer and puck set up must be correct or I would not see any data in the Debug Window..
Any clue would help..
Thanks
John
I'm using one of those USB GPS Dongle Glonass Beidou GNSS Receiver Modules at home and as backup GPS on the boat.

Best GPS reception for me comes from my SH2200 VHF/GPS/AIS Radio

I set it to the lowest priority.

Anyway today here at home with the dongle, I had just the sentences for most of the morning but no active (red) boat position display and no satellite color (green)

After connecting repeatedly it has now started to work periodically
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Old 29-01-2023, 08:54   #11
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Re: gps puck not working with opencpn

OK// All is good it works...
Here is what happened..

I took my lap top and 2 separate GPS pucks outside in the cold so I had a very clear view of the sky and tested both pucks separately and they both worked.. The location of boat on the chart jumped to my correct current location.

The screen in the window must have blocked the signal to prevent reception.
When I organically plugged the puck into the laptop inside the house I thought the data that I could see coming from the puck looked like it was seeing the satellites but is not.

Both pucks were just putting out signal that looked like it was receiving data from the satellites and of course the OpenCpn was not getting any satellite data..
So problem solved ... thanks for all the help and advice.. Its great to have people who help you work thru problems.. we are not alone...
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Old 03-02-2023, 18:08   #12
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Re: gps puck not working with opencpn

Same problem. Iíve bought a new laptop - old ran win 7 and Iíve used cpn for years and had dongle for 10 or so years. All worked fine. Trying to set up on win 11. Been so long Iím pretty rusty. So my gps pick is bu353 - no other letters. Under device manager it says itís working but thereís a message saying pl2303hxa phased out since 2012 please contact supplier. Iíve checked their web for new driver for win11 but they all have letters after like s4. I tried installing one but windows said the one I already have is fine. The puck is flashing like it used to when it had satellite. Anyone got any suggestions for me? Someone mentioned a debug forgps but I donít know where or what that is and some say I need to buy a new puck??
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Old 03-02-2023, 21:03   #13
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Re: gps puck not working with opencpn

The BU353 isn't supported on Windows 10 or later. You need to get one of the later versions for which there is a driver compatible with your operating system.
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Old 05-02-2023, 16:25   #14
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Re: gps puck not working with opencpn

thankyou fgd3
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