The receiver will reply with the following response.
$>
4.2 $JPOS,M
This command allows you to ‘poll’ the receiver and output selected
messages only when this manual mark is entered. To initiate this for the
messages listed above that have this feature enabled, they must be turned on
using the command $JASC,msg,M[,OTHER]<CR><LF>
All messages with ‘M’ in the last field will be outputted with the command
$JPOS,M[,OTHER]<CR><LF>
Note – Messages can only be selected at one output rate. It is not
possible to enable them at a constant output rate as well as with
the manual mark option simultaneously.
4.3 $JAGE
This command allows you to choose the maximum allowable age for
correction data. The default setting for all receivers is 1800 seconds,
however, you may change this value as you feel appropriate. This setting
inherently defines how long a receiver should coast using the COAST
feature.
Using COAST, the receiver is able to use old correction data for extended
periods of time. If you choose to use a maximum correction age older than
1800 seconds, we recommend that you consider testing the receiver to
ensure that the new setting meets your requirements as accuracy will slowly
drift with increasing time.
This command has the following structure.