Receiver Commands 103
Receiver Commands
Table 6.11 outlines the response message.
DAP: Doppler Averaging Interval
$PASHS,DAP,f1
This command sets the time interval for the average doppler computation where f1
is the value for the output interval between 0.0 and 5.0. To use the raw Doppler
value, set f1 to 0.
The Doppler averaging period affects the noise in the computed velocity, and at
approximately 0.5, the velocity reaches it’s nominal value. The maximum value is
5.0*(maximum position period).
Example
Enter the following command to set the time interval for doppler averaging to 5
seconds:
$PASHS,DAP,5
$PASHQ,DAP,[c1]
This command queries the doppler averaging interval range, where c1 is the
optional port designator for the output of the response. If a port is not specified, the
receiver sends the response to the current port.
$PASHR,DAP
The response message is output in the format:
$PASHR,DAP,f1*hh
Table 6.11. Typical CTS Message
Item Description
$PASHR Header
CTS Message identifier
A Port identifier
ON Current CTS setting for the related serial port
*70 Checksum
DEFAULT SETTING
CTS—OFF
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