Garmin GPS 17x Specifiche tecniche - Pagina 18

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Garmin GPS 17x Specifiche tecniche
4.2.4

Global Positioning System Fix Data (GPGGA)

$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 17x HVS
<2>
Latitude, ddmm.mmmm format for GPS 17x HVS (leading zeros will be transmitted)
<3>
Latitude hemisphere, N or S
<4>
Longitude, dddmm.mmmm format for GPS 17x HVS (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 (GPGSA)

$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 (GPGSV)

$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 (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.
190-00885-07
GPS 17x HVS Technical Specifications
Page 14
Rev. A