Garmin LVC 18 Technical Specification - Page 23

Global Positioning System Fix Data (GGA), GPS DOP and Active Satellites (GSA) - gps 18 lvc manual

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4.2.4 Global Positioning System Fix Data (GGA) $GPGGA,,,,,,,,,,M,,M,,*hh UTC time of position fix, hhmmss format for GPS 18 PC or LVC; hhmmss.s format for GPS 185Hz Latitude, ddmm.mmmm format for GPS 18 PC/LVC; ddmm.mmmmm for GPS 18-5Hz (leading zeros will be transmitted) Latitude hemisphere, N or S Longitude, dddmm.mmmm format for GPS 18 PC/LVC; dddmm.mmmmm for GPS 18-5Hz (leading zeros will be transmitted) Longitude hemisphere, E or W GPS quality indication, 0 = fix not available, 1 = Non-differential GPS fix available, 2 = Differential GPS (WAAS) fix available, 6 = Estimated Number of satellites in use, 00 to 12 (leading zeros will be transmitted) Horizontal dilution of precision, 0.5 to 99.9 Antenna height above/below mean sea level, -9999.9 to 99999.9 meters Geoidal height, -999.9 to 9999.9 meters Null (Differential GPS Null (Differential Reference Station ID) 4.2.5 GPS DOP and Active Satellites (GSA) $GPGSA,,,,,,,,,,,,,,,,,*hh Mode, M = manual, A = automatic Fix type, 1 = not available, 2 = 2D, 3 = 3D PRN number, 01 to 32, of satellite used in solution, up to 12 transmitted (leading zeros will be transmitted) Position dilution of precision, 0.5 to 99.9 Horizontal dilution of precision, 0.5 to 99.9 Vertical dilution of precision, 0.5 to 99.9 4.2.6 GPS Satellites in View (GSV) $GPGSV,,,,,,,,...,,,*hh Total number of GSV sentences to be transmitted Number of current GSV sentence Total number of satellites in view, 00 to 12 (leading zeros will be transmitted) Satellite PRN number, 01 to 32 (leading zeros will be transmitted) Satellite elevation, 00 to 90 degrees (leading zeros will be transmitted) Satellite azimuth, 000 to 359 degrees, true (leading zeros will be transmitted) Signal to noise ratio (C/No) 00 to 99 dB, null when not tracking (leading zeros will be transmitted) NOTE: Items ,,, and 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 bursts of NMEA 0183 data. These fields will be null if unused. GPS 18 Technical Specifications (190-00307-00) Page 17 Rev. D

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GPS 18 Technical Specifications (190-00307-00)
Rev. D
Page 17
4.2.4
Global Positioning System Fix Data (GGA)
$GPGGA,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,M,<10>,M,<11>,<12>*hh<CR><LF>
<1>
UTC time of position fix, hhmmss format for GPS 18 PC or LVC; hhmmss.s format for GPS 18-
5Hz
<2>
Latitude, ddmm.mmmm format for GPS 18 PC/LVC; ddmm.mmmmm for GPS 18-5Hz
(leading zeros will be transmitted)
<3>
Latitude hemisphere, N or S
<4>
Longitude, dddmm.mmmm format for GPS 18 PC/LVC; dddmm.mmmmm for GPS 18-5Hz
(leading zeros will be transmitted)
<5>
Longitude hemisphere, E or W
<6>
GPS quality indication, 0 = fix not available, 1 = Non-differential GPS fix available, 2 =
Differential GPS (WAAS) fix available, 6 = Estimated
<7>
Number of satellites in use, 00 to 12 (leading zeros will be transmitted)
<8>
Horizontal dilution of precision, 0.5 to 99.9
<9>
Antenna height above/below mean sea level, -9999.9 to 99999.9 meters
<10>
Geoidal height, -999.9 to 9999.9 meters
<11>
Null (Differential GPS
<12>
Null (Differential Reference Station ID)
4.2.5
GPS DOP and Active Satellites (GSA)
$GPGSA,<1>,<2>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<3>,<4>,<5>,<6>*hh<CR><LF>
<1>
Mode, M = manual, A = automatic
<2>
Fix type, 1 = not available, 2 = 2D, 3 = 3D
<3>
PRN number, 01 to 32, of satellite used in solution, up to 12 transmitted (leading zeros will be
transmitted)
<4>
Position dilution of precision, 0.5 to 99.9
<5>
Horizontal dilution of precision, 0.5 to 99.9
<6>
Vertical dilution of precision, 0.5 to 99.9
4.2.6
GPS Satellites in View (GSV)
$GPGSV,<1>,<2>,<3>,<4>,<5>,<6>,<7>,...<4>,<5>,<6>,<7>*hh<CR><LF>
<1>
Total number of GSV sentences to be transmitted
<2>
Number of current GSV sentence
<3>
Total number of satellites in view, 00 to 12 (leading zeros will be transmitted)
<4>
Satellite PRN number, 01 to 32 (leading zeros will be transmitted)
<5>
Satellite elevation, 00 to 90 degrees (leading zeros will be transmitted)
<6>
Satellite azimuth, 000 to 359 degrees, true (leading zeros will be transmitted)
<7>
Signal to noise ratio (C/No) 00 to 99 dB, null when not tracking (leading zeros will be
transmitted)
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 bursts of NMEA 0183
data. These fields will be null if unused.