Programming Manual 44
There are no data fields to specify in this message. The receiver will
respond with the following message:
$>JWAASPRN,prn1,prn2
Where ‘prn1’ indicates the first PRN number and ‘prn2’ indicates the second
PRN number. The PRN numbers for WAAS are 122 and 134. EGNOS is
currently using PRN 120.
To change from the current PRN numbers, the following message should be
used:
$JWAASPRN[,sv1[,sv2]] <CR><LF>
Where ‘sv1’ is the PRN number of the first SBAS satellite and ‘sv2’ is the
PRN number of the second SBAS satellite. Either ‘sv1’ or both ‘sv1’ and ‘sv2’
may be specified.
The receiver will reply with the following response:
$>
5.2 $JGEO
This message is used to display information related to the current frequency
of WAAS, and its location in relation to the receiver’s antenna.
To query the receiver for the currently used WAAS satellite information,
use the following query:
$JGEO<CR><LF>
The receiver will respond with the following data message:
$>JGEO,Sent=1575.4200,Used=1575.4200,PRN=prn,Lon=lon,El=ele,
Az=az
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