NavCom Sapphire Rev.J User Manual
Page 322
Sapphire Technical Reference Manual Rev. J
322
R = RTK (NMEA v4.1 only) (see note 1)
F = Float (NMEA v4.1 only) (see note 1)
F13
Nav Status
Navigational Status Indicator (NMEA v4.1 only)
S = Safe.
C = Caution.
U = Unsafe.
V = Not valid.
F14
*CRC
Checksum
Example:
$GPRMC,033341.00,A,3713.870096,N,12148.058706,W,0.03,0.0,180407,0.0,E,D*19
1
The IEC 61162 4
th
Edition adds a new mode indicator field: P for Precise, R for RTK, and F for
RTK Float.
-
P is used for all Dual Frequency StarFire related solutions
-
D is used for all other DGPS solutions including: WAAS, RTCM Code, and StarFire Single.
-
R is used for all RTK related solutions except RTK Float, these solutions include RTK Single,
RTK Dual, and RTK-Extend.
-
F is used for RTK Float solution.