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Author Topic: No fix sentence from receiver  (Read 1240 times)

karpediemnow

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No fix sentence from receiver
« on: April 24, 2013, 01:05:36 pm »

Hello i don't receive valid nmea sentence form GPS receive:

$PSRFTXT,Version:GSW3.5.0_3.5.00.00-SDK-3EP2.01 *46
$PSRFTXT,Version2:F-GPS-03-1006231*2A
$PSRFTXT,WAAS Enable*66
$PSRFTXT,TOW:  0*25
$PSRFTXT,WK:   1519*69
$PSRFTXT,POS:  6378137 0 0*2A
$PSRFTXT,CLK:  96250*25
$PSRFTXT,CHNL: 12*73
$PSRFTXT,Baud rate: 4800*65
...
...
$GPGSV,1,1,00*79
$GPRMC,002340.036,V,,,,,,,150209,,,N*42
$GPGGA,002341.036,,,,,0,00,,,M,0.0,M,,0000*57
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GPRMC,002341.036,V,,,,,,,150209,,,N*43
$GPGGA,002342.036,,,,,0,00,,,M,0.0,M,,0000*54
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GPRMC,002342.036,V,,,,,,,150209,,,N*40
$GPGGA,002343.036,,,,,0,00,,,M,0.0,M,,0000*55
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GPRMC,002343.036,V,,,,,,,150209,,,N*41
$GPGGA,002344.036,,,,,0,00,,,M,0.0,M,,0000*52
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GPRMC,002344.036,V,,,,,,,150209,,,N*46
$GPGGA,002345.036,,,,,0,00,,,M,0.0,M,,0000*53
$GPGSA,A,1,,,,,,,,,,,,,,,*1E

the receiver is outside on clear day
The device just has the solid red light that never blinks.
Is it possible my device is bad?
 or need send start sentece to receive fix sentence?

Regards
Gianpaolo
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karpediemnow

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Re: No fix sentence from receiver
« Reply #1 on: April 25, 2013, 12:03:10 pm »

UP UP  :-\  :-\
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karpediemnow

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Re: No fix sentence from receiver
« Reply #2 on: April 25, 2013, 03:10:43 pm »

I have try with Cold Start String:

$PSRF104,0,0,0,96000,237759,1946,12,4*1D  (GPSINFO )

and:

$PSRF101,0,0,0,000,0,0,12,4*10

Write on GPS device:$PSRF101,0,0,0,000,0,0,12,4*10
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GPGSV,1,1,00*79
$GPRMC,235950.058,V,,,,,,,140209,,,N*46
$PSRFTXT,Version:GSW3.5.0_3.5.00.00-SDK-3EP2.01 *46
$PSRFTXT,Version2:F-GPS-03-1006231*2A
$PSRFTXT,WAAS Enable*66
$PSRFTXT,TOW:0*25
$PSRFTXT,WK: 1519*69
$PSRFTXT,POS:6378137 0 0*2A
$PSRFTXT,CLK:96250*25
$PSRFTXT,CHNL: 12*73
$PSRFTXT,Baud rate: 4800*65
$GPGGA,235946.037,,,,,0,00,,,M,0.0,M,,0000*5D
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GPRMC,235946.037,V,,,,,,,140209,,,N*48
$GPGGA,235947.039,,,,,0,00,,,M,0.0,M,,0000*52
$GPGSA,A,1,,,,,,,,,,,,,,,*1E
$GPRMC,235947.039,V,,,,,,,140209,,,N*47

....no FIX .... :( :o
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karpediemnow

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Re: No fix sentence from receiver
« Reply #3 on: April 26, 2013, 10:42:32 am »

Simple answer!

device is broken!
« Last Edit: April 26, 2013, 10:45:44 am by karpediemnow »
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GS_TECH01

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Re: No fix sentence from receiver
« Reply #4 on: April 29, 2013, 01:29:16 am »

Dear Karpediemnow

Sorry for late reply ~~

if your device has same problem after cold start
probably your antenna is broken  :(

Thank you and have a nice day

Best Regards,
Angela


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karpediemnow

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Re: No fix sentence from receiver
« Reply #5 on: May 10, 2013, 11:25:24 am »

I have found the problem.... 8)

 :o...INTERFERENCES..... :o

i have put the GPS receiver far off the control board (netduino) and work fine!!!
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GS_TECH01

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Re: No fix sentence from receiver
« Reply #6 on: May 13, 2013, 03:30:18 am »

Dear Karpediemnow

It sounds great !!
Thank you for your share ~~  ;)

Have a nice day :)

Best Regards,
Angela

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