ashtech DG14, Reference Manual

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64 DG14 and DG16 Board & Sensor Reference Manual
You have now set up the remote station. Turn on the GGA, GLL, or POS
message to obtain position.
Recommended Settings for Differential Remote Stations
There are many parameters that control the operation of the receiver. Most
should be left at default values. The following settings are recommended for
differential remote stations.
$PASHS,CRR,S
$PASHS,LPS,10,3,1 (for high dynamic or high vibration applications)
Other parameter settings at factory default.
Base Data Latency
Differential operation works better the lower the latency of the base-remote
data link. To minimize latency set the baud rate of the radios as high as
possible, and use radios that are optimized for low latency GPS operation,
such as the Thales SSRadio.
The actual base-remote data latency is given in the GGA message.
Maximum acceptable base-remote data latency is controlled by the
$PASHS,RTC,MAX command.
When you are using a rover receiver in differential mode (either code phase or carrier
phase), a failure at the base station or in the data link causes the rover receiver to
cease outputting differentially corrected positions. You can use the auto differential
mode to output an autonomous position at the rover receiver if differential data from
$PASHS,SPD,x,n Set the baud rate of serial port x to the same as the radio providing
the corrections.
$PASHS,SAV,Y Save settings
Table 4.3. Differential Remote Station Commands (Continued)
Command Description