AQmax AQ-300-U Manuel de l'utilisateur Manuel - Page 14
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GNSS Satellites in View (GSV)
Recommended Minimum Specific GNSS Data (RMC)
AQ Max
Technology Inc.
Fax: ++886 6 2380861
E-Mail:
Table A-8 contains the values for the following example:
$GPGSV,2,1,07,07,79,048,42,02,51,062,43,26,36,256,42,27,27,138,42*71
$GPGSV,2,2,07,09,23,313,42,04,19,159,41,15,12,041,42*41
Table A-8 GSV Data Format
Name
Message ID
Number of Messages
Message Number
Satellites in View
Satellite ID
Elevation
Azimuth
SNR (C/No)
....
Satellite ID
Elevation
Azimuth
SNR (C/No)
Checksum
<CR> <LF>
NOTE: Items <4>,<5>,<6> and <7> repeat for each satellite in view to a maximum of
four (4) satellites per sentence. Additional satellites in view information must be sent
in subsequent sentences. These fields will be null if unused.
Table A-9 contains the values for the following example:
$GPRMC,161229.487,A,3723.2475,N,12158.3416,W,0.13,309.62,120598, ,*10
Table A-9 RMC Data Format
Name
Message ID
UTC Time
Status
Latitude
N/S Indicator
Longitude
E/W Indicator
Speed Over Ground
Course Over Ground
Date
Magnetic Variation (1)
Checksum
<CR> <LF>
(1) SiRF Technology Inc. does not support magnetic declination. All "course over
ground" data are geodetic WGS84 directions.
6F-2, No.90, Sec.1, Chung-Hwa East Rd, Tainan, Taiwan
Web:
www.aqmax.com
Example
Units
$GPGSV
GSV protocol header
2
Range 1 to 3
1
Range 1 to 3
07
Range 1 to 12
07
Channel 1 (Range 1 to 32)
79
degrees Channel 1 (Maximum 90)
048
degrees Channel 1 (True, Range 0 to 359)
42
dBHz
Range 0 to 99, null when not tracking
....
27
Channel 4 (Range 1 to 32)
27
degrees Channel 4 (Maximum 90)
138
degrees Channel 4 (True, Range 0 to 359)
42
dBHz
Range 0 to 99, null when not tracking
*71
End of message termination
Example
Units
$GPRMC
161229.487
A
3723.2475
N
12158.3416
W
0.13
Knots
309.62
Degrees True
120598
Degrees E=east or W=west
*10
Description
Description
RMC protocol header
hhmmss.sss
A=data valid or V=data not valid
ddmm.mmmm
N=north or S=south
dddmm.mmmm
E=east or W=west
ddmmyy
End of message termination
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