NavCom StarUtil-2110 Rev.B - Manual (Page 73)

StarUtil-2110 User Guide – Rev. B
B-71
B ........................................ NCT Station ID NMEA GGA Field 14 Definitions
Tables 5 and 6 detail the information contained in field 14 of the NMEA GGA message when the
GGA Option on the Rover / Navigation & Tracking Setup window is set to NCT STATION ID
(see Figure 8). The format of field 14 is a 3 digit integer value as denoted below as XYY, where
X is the StarFire satellite beam in use and YY is the GPS correction signal type being used.
‡
The navigation mode in field 14 of the GGA NMEA message is the same as the
navigation mode of the 0xb1 NCT Binary message.
Table 5: Beam Selection; ID X
ID (X) DOWNLINK BEAM
0 None selected, or error
1 PAC-E (98W)
2 IND-E (109E)
3 IND-W (25E)
4 PAC-C (142W)
5 PAC-W (143.5E)
6 AOR-E (15.5W)
7 - reserved -
8 - reserved -
9 Forced to unknown frequency (Manual selection)
Table 6: Navigation Mode; ID YY
ID (YY) GPS CORRECTION SIGNAL
00 Non dGPS
01 dGPS, RTCM type 1, 3, or 9, Single Freq
02 WAAS/EGNOS/MSAS/GAGAN, Single Freq., (See GSA for SBAS ID in use)
03 Reserved
04 Reserved
05 Reserved
06 StarFire RTG, Single Freq. (no ‘Tide’ Adjustment)