GPSM001 Datasheet, PDF (9/20 Pages) rfsolutions.ltd – OEM GPS Receiver Module

OEM GPS Receiver Module
GPSM001
GSV—GNSS Satellites in View
Description: This message reports the satellites in view, their ID numbers, elevation, azimuth, and SNR values (up to
four satellites per message). GSV is described in Table 8.
Name
Example
Units
Description
Message ID
Number of Messages¹
Message Number ¹
$GPGSV
2
1
GSV protocol header
Range 1 to 3
Range 1 to 3
Satellites in View
07
Satellite ID
07
Channel 1 (Range 1 to 32)
Elevation
79
degrees Channel 1 (Maximum 90)
Azimuth
048
degrees Channel 1 (True, Range 0 to 359)
SNR (C/No)
42
dBHz
Range 0 to 99, null when not tracking
…
…
Satellite ID
27
Channel 4 (Range 1 to 32)
Elevation
27
degrees Channel 4 (Maximum 90)
Azimuth
138
degrees Channel 4 (True, Range 0 to 359)
SNR (C/No)
42
dBHz
Range 0 to 99, null when not tracking
Checksum
*71
<CR><LF>
End of message termination
1 _{Depending on the number of satellites tracked multiple messages of GSV data may be required.}
Table 8. GGA Data Format
Example: The values reported in this example are interpreted as shown in Table 8. Two messages are require to
complete the data transmission.
$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
RMC—Recommended Minimum Specific GNSS Data
Description: This message reports the time, date, position, course, and speed from the receiver’s navigation solution.
RMC is described in Table 9.
Name
Example
Units
Description
Message ID
$GPRMC
RMC protocol header
UTC Position
161229.487
Hh mm ss.sss
Status
A
A = data valid or V = data not valid
Latitude
3723.2475
Dd mm.mmmm
N/S Indicator
N
N = north or S = south
Longitude
12158.3416
Ddd mm.mmmm
E/W Indicator
W
E = east or W = west
Speed Over Ground
0.13
knots
Course Over Ground
309.62
degrees True
Date
Magnetic Variation¹
120598
Dd mm yy
degrees E = east or W = west
Checksum
*10
<CR><LF>
End of message termination
1 _{All "course over ground" data are geodetic WGS84 directions.}
Table 9. RMC Data Format
Example: The values reported in this example are interpreted as shown in Table 9:
$GPRMC,161229.487,A,3723.2475,N,12158.3416,W,0.13,
309.62,120598, ,*10
DS031-2 Jan ‘04
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