2 Command Descriptions
28 MiLLennium GPSCard SW Version 4.503/4.52 Command Descriptions Manual Rev 2Table 2-1 Commands By Function Table (continued)Table 2-2 GPSCard Command Summary

DIFFERENTIAL REMOTE STATION

Commands Descriptions
ACCEPT Accepts RTCM1, RTCA or RTCAB differential inputs
$ALMA Input almanac data
DGPSTIMEOUT Set maximum age of differential data accepted
RESET Performs a hardware reset
$RTCA RTCA differential correction input (ASCII)
$RTCM RTCM differential correction input (ASCII)
RTCMRULE Selects RTCM bit rule
SETDGPSID Select differential reference station ID to receive

CLOCK INFORMATION, STATUS, AND TIME

Commands Descriptions
CLOCKADJUST Enable clock modelling & 1PPS adjust
DIFF_PROTOCOL 1Differential protocol control
EXTERNALCLOCK Sets default parameters of an optional external oscillator
EXTERNALCLOCK FREQUENCY Sets clock rate
SETTIMESYNC 1Enable or disable time synchronization
$UTCA Download UTC data
1 Intended for advanced users of GPS only

Command Description Syntax

$ALMA Injects almanac (follows NovAtel ASCII log format)
$IONA Injects ionospheric refraction corrections (follows NovAtel ASCII log format)
$PVAA Injects latest computed position, velocity and acceleration (follows NovAtel ASCII log format)
$REPA Injects raw GPS ephemeris data (follows NovAtel ASCII log format)
$RTCA Injects RTCA format DGPS corrections in ASCII (Type 1) (follows NovAtel ASCII log forma t)
$RTCM Injects RTCM format differential corrections in ASCII (Type 1) (follows NovAtel ASCII log format)
$TM1A Injects receiver time of 1 PPS (follows NovAtel ASCII log format)
$UTCA Injects UTC information (follows NovAtel ASCII log format)
ACCEPT Port input control (set command interpreter) accept port,option
ANTENNAPOWER Power to the low-noise amplifier of an active antenna antennapower flag
ASSIGN Assign a prn to a channel # assign channel,prn,doppler, search window
UNASSIGN Un-assign a channel unassign channel
UNASSIGNALL Un-assign all channels unassig nall
CLOCKADJUST Disable clock steering mechanism clockadjust switch
COMn Initialize Serial Port (1 or 2) comn bps,parity,databits,stopbits, handshake,echo
COMn_DTR Programmable DTR lead/tail time comn _dtr control,active,lead,tail
COMn_RTS Programmable RTS lead/tail time comn_rts control,active,lead,tail
CONFIG Switches the channel configuration of the GPSCard config cfgtype
CRESET Configuration reset to factory default creset
CSMOOTH Sets carrier smoothing csmooth value
DATUM Choose a DATUM name type datum option
USERDATUM User defined DATUM userdatum semi-major,flattening,dx,dy,dz, rx,ry,rz,
scale
DGPSTIMEOUT Sets maximum age of differential data to be accepted and ephemeris
delay dgpstimeout value value