OmniSTAR 5220HP, Руководство пользователя

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OmniSTAR 5220HP User Manual
Issue 1.32 12/2010
43
$JASC
This command turn GPS data messages on at a particular update
rate or turn them off. When turning messages on, you have the
choice of various update rates available.
This command has the following layout:
$JASC,MSG,R[,OTHER]<CR><LF>
The variable ‘MSG’ is the name of the data message and the
variable ‘R’ is the message rate in Hertz. Sending the command
without the optional ‘,OTHER’ data field (without the square braces)
will enact a change on the current port.
Sending a command with a zero value for the ‘R’ field turns off a
message.
Name data
message Description of the message
GPGGA Global Positioning System Fix Data
GPGLL Geographic Position Latitude/Longitude
GPGSA GNSS DOP and Active Satellites
GPGST GNSS Pseudorange Error Statistics
GPGSV GNSS Satellites in View
GPRMC Recommended Minimum Specific GNSS Data
GPRRE Range residual message
GPVTG Course over Ground and Ground Speed
GPZDA Time and Date
When the ‘,OTHER’ data field is specified (without the square
brackets), this command will act as a change on the other port.
The receiver will reply with the following response:
$>
The maximum rate for any kind of message is 10 Hz or 10 per
second (20 Hz optional). Message rates can be adapted according
to your needs:
For example if you wish a ‘Time and Date’ message every minute
(that is 1/60=0.0166666666 Hz.) you sent the command:
$JASC,GPZDA,0.0166666666<CR><LF>