Operating Instructions and Installation Instructions

ComNav Vector G2/G2B Installation & Operation Operation

Document PN 29010078 V2.0 - 56 -

DRAFT #3 – 29 May 2009

Command Description

$JATT,CSEP

Query the current computed antenna separation

(Should always return 0.500 ± 0.010 metres)

$JATT,MSEP[,sep]

Query or Set the actual separation between the antennae

L In the Vector G2 & G2B, the physical antenna separation is

fixed at 0.5 metres – so this command should only be used to

check that the MSEP value is set correctly (to 0.5)!

$JATT,HELP Show a list of the various JATT commands which are available

$JATT,SEARCH Force a new RTK Search

$JATT,SUMMARY Query current settings of several parameters

$JGEO Query the frequencies and locations of SBAS satellites being used

$JI Query the G2’s serial number and firmware versions

$JT Query the receiver type

$JQUERY,GUIDE Query whether the G2 is providing suitable performance or not

$JRESET L Reset to default settings L DO NOT USE

$JSAVE Save current operating configuration

$JSHOW[,BIN/CONF/GP]

Show current operating configuration

• empty ⇒ show everything

• BIN ⇒ show Binary sentences

• CONF⇒ show modes & limits

• GP⇒ show NMEA & Proprietary sentences

$JWAASPRN Query the PRNs of the SBAS satellites currently being used

Table 16 – Commands for Status & Configuration

L The $JRESET command should NEVER be used!!

It does not reset the G2’s configuration to the ComNav factory defaults, as you might

expect, but instead to Hemisphere GPS’s own factory defaults, which are quite

different (including the Baud rates being 19200).

If you happen to send this command by accident, please call your ComNav Dealer for

assistance in restoring normal operation of your G2.