[Loadstone] No GPS time with wintec wbt300

Shawn Kirkpatrick shawn at odyssey.cm.nu
Tue Jun 12 01:55:29 BST 2007


Thanks for the log data. From this I can see the problem and fortunately 
it's an easy fix. There's nothing wrong with your receiver, it seems to be 
sending valid data so there's probably no need to replace it. The problem 
seems to be in loadstone's time checking code. It's expecting three digits 
after the decimal in the time field but your receiver is only sending two so 
loadstone thinks it's an invalid time. We don't use these digits anyway so 
this doesn't really matter. A simple tweak to the code should fix this 
problem.
Seeing what some of those other messages send is also interesting.

On Mon, 11 Jun 2007, Hasan Karahasan wrote:

> Hello Shawn and all,
> First, I wrote that I always get 02:00:00 O.clock as GPS time. Meanwhile I
> found out that this is my local time ofset I set in loadstone's settings. So
> probably loadstone gets nothing useful from the receiver wich results in
> 00:00:00 plus time ofset.
>
> Second, I was thinking to own a WBT300. That is what I ordered from a local
> dealer here. But a sighted person told me that this receiver is called
> "G-Raysi". It seams to be the successor of the WBT300. I am very sorry for
> this irritation. OK, but according to wintec this one uses the antaris 4 as
> well.
>
> here comes a piece of my NMEA.log. If we could find the reason it wood be
> good , but we should'nt waist to many time on this issue if it isn't
> helpfull for others as well. There are much more important things to do of
> course. And if we cannot solve this, I wont't worry about. I will say: Well,
> this receiver sucks. I will put it in ebay to be sold and get a new one.
>
> log opened 11.06.2007 20:48:40
> $GPRMC,185012.00,A,5229.35703,N,01319.66982,E,0.000,181.46,110607,,,A*6D
> $GPVTG,181.46,T,,M,0.000,N,0.000,K,A*37
> $GPGGA,185012.00,5229.35703,N,01319.66982,E,1,07,1.61,68.5,M,44.8,M,,*66
> $GPGSA,A,3,09,12,05,30,14,22,04,,,,,,2.11,1.61,1.36*0F
> $GPGSV,3,1,10,09,74,140,20,12,64,254,45,05,47,256,46,26,04,172,*75
> $GPGSV,3,2,10,30,29,254,39,14,27,315,39,22,08,276,32,02,04,132,*79
> $GPGSV,3,3,10,04,14,101,18,17,25,047,20*70
> $GPGRS,185012.00,1,-67.1,-0.3,0.4,3.8,0.0,3.7,-79.0,,,,,*44
> $GPGST,185012.00,2.6,,,,3.8,8.6,8.5*7A
> $GPRMC,185013.00,A,5229.35703,N,01319.66982,E,0.000,181.46,110607,,,A*6C
> $GPVTG,181.46,T,,M,0.000,N,0.000,K,A*37
> $GPGGA,185013.00,5229.35703,N,01319.66982,E,1,08,1.23,68.5,M,44.8,M,,*6E
> $GPGSA,A,3,09,12,05,30,14,22,04,17,,,,,1.83,1.23,1.36*07
> $GPGSV,3,1,10,09,74,140,22,12,64,254,45,05,47,256,46,26,04,172,*77
> $GPGSV,3,2,10,30,29,254,39,14,27,315,39,22,08,276,33,02,04,132,*78
> $GPGSV,3,3,10,04,14,101,17,17,25,047,20*7F
> $GPGRS,185013.00,1,-69.0,-0.6,0.5,3.6,-0.2,3.4,-76.5,-99.1,,,,*54
> $GPGST,185013.00,2.6,,,,4.6,11,10*70
> $GPRMC,185014.00,A,5229.35703,N,01319.66982,E,0.000,181.46,110607,,,A*6B
> $GPVTG,181.46,T,,M,0.000,N,0.000,K,A*37
> $GPGGA,185014.00,5229.35703,N,01319.66982,E,1,08,2.63,68.5,M,44.8,M,,*6E
> $GPGSA,A,3,09,12,05,30,14,22,04,17,,,,,4.00,2.63,3.00*09
> $GPGSV,3,1,10,09,74,140,23,12,64,254,45,05,47,256,46,26,04,172,*76
> $GPGSV,3,2,10,30,29,254,39,14,27,315,39,22,08,276,33,02,04,132,*78
> $GPGSV,3,3,10,04,14,101,16,17,25,047,20*7E
> $GPGRS,185014.00,1,-70.4,-0.8,0.3,3.4,-0.2,3.5,,,,*51
> $GPGST,185014.00,2.6,,,,3.4,7.2,7.3*72
> $GPRMC,185015.00,A,5229.35703,N,01319.66982,E,0.000,181.46,110607,,,A*6A
> $GPVTG,181.46,T,,M,0.000,N,0.000,K,A*37
> $GPGGA,185015.00,5229.35703,N,01319.66982,E,1,08,2.63,68.5,M,44.8,M,,*6F
> $GPGSA,A,3,09,12,05,30,14,22,04,17,,,,,4.00,2.63,3.00*09
> $GPGSV,3,1,10,09,74,140,23,12,64,254,45,05,47,256,46,26,04,172,*76
> $GPGSV,3,2,10,30,29,254,39,14,27,315,39,22,08,276,33,02,04,132,*78
> $GPGSV,3,3,10,04,14,101,15,17,25,047,20*7D
> $GPGRS,185015.00,1,-68.6,-0.9,0.3,3.2,-0.6,3.1,,,,*5C
> $GPGST,185015.00,2.6,,,,3.4,7.2,7.3*73
> $GPRMC,185016.00,A,5229.35703,N,01319.66982,E,0.000,181.46,110607,,,A*69
> $GPVTG,181.46,T,,M,0.000,N,0.000,K,A*37
> $GPGGA,185016.00,5229.35703,N,01319.66982,E,1,08,2.63,68.5,M,44.8,M,,*6C
> $GPGSA,A,3,09,12,05,30,14,22,04,17,,,,,3.99,2.63,3.00*0E
> $GPGSV,3,1,10,09,74,140,24,12,64,254,45,05,47,256,45,26,04,172,*72
> $GPGSV,3,2,10,30,29,254,39,14,27,315,39,22,08,276,32,02,04,132,*79
> $GPGSV,3,3,10,04,14,101,13,17,25,047,20*7B
> $GPGRS,185016.00,1,-68.0,-1.2,0.5,3.4,-0.6,3.0,,,,*52
> $GPGST,185016.00,2.6,,,,4.3,10,9.7*50
> $GPRMC,185017.00,A,5229.35703,N,01319.66982,E,0.000,181.46,110607,,,A*68
> $GPVTG,181.46,T,,M,0.000,N,0.000,K,A*37
> $GPGGA,185017.00,5229.35703,N,01319.66982,E,1,08,2.64,68.5,M,44.8,M,,*6A
>
> Reguards
> Hasan
>
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