Global Positioning System Almanac Data (Alm); Global Positioning System Fix Data (Gga); Gps Dop And Active Satellites (Gsa) - Garmin 15 H Series Technical Specifications

leap second is removed. For example, if a negative leap second had been required on December
31, 1998, the result would have been as follows:
$GPRMC,235959,A,3851.3651,N,09447.9382,W,000.0,000.0,311298,003.3,E*65
$GPRMC,000001,A,3851.3651,N,09447.9382,W,000.0,000.0,010199,003.3,E*65
$GPRMC,000002,A,3851.3651,N,09447.9382,W,000.0,000.0,010199,003.3,E*66
4.2.3

Global Positioning System Almanac Data (ALM)

Almanac sentences are not normally transmitted. Send the GPS sensor a $PGRMO,GPALM,1
command to initiate almanac transmission. Upon receipt of this command, the GPS sensor will
transmit available almanac information on GPALM sentences. During the transmission of
almanac sentences, other NMEA 0183 data output is suspended temporarily.
$GPALM,<1>,<2>,<3>,<4>,<5>,<6>,<7>,<8>,<9>,<10>,<11>,<12>,<13>,<14>,<15>*hh<CR><L
F>
<field information> can be found in Section
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
<2> Latitude, ddmm.mmmm format (leading zeros will be transmitted)
<3> Latitude hemisphere, N or S
<4> Longitude, dddmm.mmmm format (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, set to null if unused (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
4.1.1 Almanac Information
19
(ALM).