Packb wrappter format – NavCom Sapphire Rev.J User Manual
Page 255

Sapphire Technical Reference Manual Rev. J
255
[OUTPUT] WRAPPED_RTCM22,ontime,1,2
User can still schedule individual wrapped messages
[WRAPPEDRTK]OFF
Disables all wrapped messages on the previously set port
1.211.1
PackB Wrappter Format
In contrast with the normal PackB wrapper, the [WRAPPEDRTK] message does NOT encode
the corrections by XORing with 0x55. This is done to make things easier on the user. The
wrapper looks like this:
Command:
[PACKB] L
0
L
1
~L
0
~L
1
T
0
T
1
T
2
T
3
T
V
C
t
P _MSG_ *C
0
C
1
C
2
C
3
Keyword
Description
Size (byte)
[PACKB]
PackB Header
7
L
0
L
1
Length of msg (not including [PACKB])
2
~L
0
~L
1
Inverse of length
2
T
0
T
1
T
2
T
3
TOW (ms)
4
T
V
Time version (unused)
1
C
t
Correction Type
0=unknown, 1=NCT, 2=RTCM2, 3=RTCM3, 4=CMR
1
P
Logical Port (unused)
1
_MSG_
RTK Message
??
*C
0
C
1
C
2
C
3
CRC
5