MX575A/B DGPS Compass
58
Automatic Beacon Search Command ($GPMSK,305)
:
This command initiates the beacon receiver to automatic mode of operation in
which the receiver operates without operator intervention, selecting the most
appropriate beacon station.
This command has the following format:
$GPMSK,305,A,,A,,,<CR><LF>
The internal beacon receiver will reply with the following response:
$PCSI,ACK,GPMSK,,A,,A,n<CR><LF>
Field
Description
A1
Automatic Frequency selection Mode
A2
Designates Automatic rate selection
null
The MX575 provides the above response to this variety of $GPMSK message, and
immediately tunes to the optimum beacon station in automatic mode, provided a
valid beacon almanac is present in receiver memory. Without a valid almanac, the
beacon receiver will perform a Global Search to identify candidate stations in the
area, followed by the acquisition phase of the
initial search.