GPS-41SMDR
GPS-41SMDF
Embedded GPS Module
GSV - GPS SATELLITE IN VIEW
Number of satellites in view, PRN number, elevation angle, azimuth angle, and C/No. Only up to four satellite
details are transmitted per message. Additional satellite in view information is sent in subsequent GSV
messages.
Format:
$GPGSV,<1>,<2>,<3>,<4>,<5>,<6>,<7>,…,<4>,<5>,<6>,<7> *<8><CR><LF>
Example:
$GPGSV,2,1,08,26,50,016,40,09,50,173,39,21,43,316,38,17,41,144,42*7C<CR><LF>
$GPGSV,2,2,08,29,38,029,37,10,27,082,32,18,22,309,24,24,09,145,*7B<CR><LF>
Field
Example
Description
Total number of GSV messages to be transmitted
Number of current GSV message
Total number of satellites in view, 00 ~ 12
Satellite PRN number, GPS: 01 ~ 32, SBAS: 33 ~ 64 (33 = PRN120)
Satellite elevation number, 00 ~ 90 degrees
Satellite azimuth angle, 000 ~ 359 degrees
C/No, 00 ~ 99 dB
1
2
3
4
5
6
7
2
1
08
26
50
016
40
Null when not tracking
8
7C
Checksum
RMC - RECOMMENDED MINIMUM SPECIFIC GPS/TRANSIT DATA
Time, date, position, course and speed data.
Format:
$GPRMC,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<11>,<12>*<13><CR><LF>
Example:
$GPRMC,104549.04,A,2447.2038,N,12100.4990,E,016.0,221.0,250304,003.3,W,A*22<CR><LF>
Field
Example
104549.04
A
Description
UTC time in hhmmss.ss format, 000000.00 ~ 235959.99
Status, ‘V’ = navigation receiver warning, ‘A’ = valid position
Latitude in dddmm.mmmm format
Leading zeros transmitted
1
2
3
2447.2038
4
5
N
Latitude hemisphere indicator, ‘N’ = North, ‘S’ = South
Longitude in dddmm.mmmm format
Leading zeros transmitted
12100.4990
6
7
8
9
10
11
12
E
016.0
221.0
250304
003.3
W
Longitude hemisphere indicator, 'E' = East, 'W' = West
Speed over ground, 000.0 ~ 999.9 knots
Course over ground, 000.0 ~ 359.9 degrees
UTC date of position fix, ddmmyy format
Magnetic variation, 000.0 ~ 180.0 degrees
Magnetic variation direction, ‘E’ = East, ‘W’ = West
Mode indicator
A
‘N’ = Data invalid
‘A’ = Autonomous
‘D’ = Differential
‘E’ = Estimated
13
22
Checksum
DS-41SMD-2 June ’06
©2006 RF Solutions Ltd, www.rfsolutions.co.uk
Tel 01273 898000 Fax 01273 480661
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