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3 Special Data Input Commands
20 MiLLennium Command Descriptions Manual
Appendix D. An example of a $REPA data message is as follows:
$REPA,14,8B09DC17B9079DD7007D5DE404A9B2D04CF671C6036612560000021804FD,
8B09DC17B98A66FF713092F12B359DFF7A0254088E1656A10BE2FF125655,
8B09DC17B78F0027192056EAFFDF2724C9FE159675A8B468FFA8D066F743*57[CR][LF]
$RTCA... (RTCAA)
Use this special data input command to directly input NovAtel RTCAA differential corrections data, ASCII format.
The data can be accepted using
COM1 or COM2. The differential corrections will be accepted and applied upon
receipt of this special data input command.
The data is generated from a GPSCard
RTCAA log and is accepted by a GPSCard remote station as in the following
format:
$RTCA,990000000447520607BE7C92FA0B82423E9FE507DF5F3FC9FD071AFC7FA0D207D090808C0E
045BACC055E9075271FFB0200413F43FF810049C9DFF8FFD074FCF3C940504052DFB*20
$RTCM... (RTCMA, $RTCM1A, $RTCM3A, $RTCM9A, $RTCM16A,
RTCM59A)
Use this special data input command to directly input RTCMA differential correction data, ASCII format (RTCM data
converted to ASCII hexadecimal, with NovAtel header added). The data can be accepted using
COM1 or COM2.
The differential corrections will be accepted and applied upon receipt of this special data input command. See
Chapter 6, Message Formats, RTCM Commands and Logs, for further information on
RTCM related topics.
The data is generated from a GPSCard
RTCMA log and is accepted by a GPSCard remote station as in the following
format
$RTCM,664142404E7257585C6E7F424E757D7A467C47414F6378635552427F73577261624278777F
5B5A525C7354527C4060777B4843637C7F555F6A784155597D7F6763507B77496E7F7A6A426F555C
4C604F4E7F467F5A787F6B5F69506C6D6A4C*2B
NOTE : The $RTCA and $RTCM commands allow the user to intermix differential corrections along with other
ASCII commands or logs over a single port. (You must, however, ensure that the
ACCEPT command option is
set to “COMMANDS”.)
TIP : The decoding success and status of $RTCA and $RTCM records can be monitored using the CDSA/B data
log. These commands will not generate any reply response from the command interpreter. They will simply be
processed for valid format and checksum and used internally. If there is any problem with the data, characters
missing or checksum fail, the data will be discarded with no warning message.