Programming Manual 20
Table 3-1 General Commands
Message Description
$JASC,Dx Command to turn on diagnostic information.
$JAIR This is a command to place the receiver into ‘AIR’ mode where the receiver will
respond better to the high dynamics associated with airborne applications.
$JASC,VIRTUAL This command is used to output RTCM data fed into the other port, through the
current port.
$JASC,RTCM This command is used to output RTCM data from the SBAS demodulator.
$JALT This command is used to set the altitude aiding mode of the receivers.
$JAPP This command is used to query the current applications and also choose the
current application.
$JBAUD Baud rate change command for the receivers.
$JCONN Virtual circuit command used to interface to the internal beacon receiver or
communicate with the menu system microprocessor (for the DGPS MAX).
$JDIFF This command is used to set the differential mode.
$JK This command is used to subscribe certain features of use of the receivers.
$JPOS This command is used to provide the receiver with a seed position to acquire a
SBAS signal more quickly upon start-up. This is not normally needed.
$JQUERY,GUIDE This command is used to poll the receiver for its opinion on whether or not it is
providing suitable accuracy after the both SBAS and GPS have been acquired (up
to 5 min).
$JRESET This command is used to reset the configuration of the receiver.
$JSAVE This command is used to save the configuration of the receiver.
$JSHOW This command is used to query the receiver for its configuration.
$JT This command is used to poll the receiver for its receiver type.
$JBIN This command is used to turn on the various binary messages supported by the
receiver.
$JI This command is used to get information from the receiver such as its serial
number and firmware version information.
The following subsections provide detailed information relating to the use of
each command.
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