iSXblue/SXBlue II GNSS Series Technical Reference Manual
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Table 5-8 Auto-Dif Commands for Base Station Operation
Message
Description
$JRAD,1
This command is used to display the current reference position
$JRAD,1,P
Store present position as reference
$JRAD,1,lat,lon,alt
Store entered position as reference
$RAD,2
Use reference position as base
$JRAD,3
Use current position as base
$JRAD,9
Initialize Base Station feature
The following subsections provide detailed information relating to the use of each command.
Note - Please ensure that you save any changes that you wish to survive beyond the current power-
up by using the $JSAVE command and wait for the ‘
$> Save Complete’
response.
5.7.1
$JRAD,1
This command is used to display the current reference position.
This command has the following format:
$JRAD,1<CR><LF>
The iSXBlue/SXBlue II GNSS will reply with a response similar to the following:
$>JRAD,1,51.00233513,-114.08232345,1050.212
Upon startup of the iSXBlue/SXBlue II GNSS with the Auto-Dif application running (as opposed to the
SBAS application), no reference position will be present in memory. If you attempt to query for the
reference position, the receiver will respond with the following message:
$>JRAD,1,FAILED,Present Location Not Stable
5.7.2
$JRAD,1,P
This command records the current position as the reference with which to compute Base Station
corrections. This would be used in relative mode, as no absolute point information is specified. This
command is normally followed by $JRAD,2.
This command has the following format:
$JRAD,1,P<CR><LF>
The iSXBlue/SXBlue II GNSS will reply with the following response:
$>JRAD,1P,OK
5.7.3
$JRAD,1,lat,lon,alt
This command is a derivative of the $JRAD,1,P command. It is normally followed by a $JRAD,2
command.
