ashtech DG16 Reference Manual page 83

You must have a source of differential corrections, usually a radio receiving a
transmission from a base station. Connect this radio to one of the DG16 serial
ports.
Send the following commands to the receiver. The receiver will accept RTCM
differential corrections in message types 1 or 9. You do not have to tell the
receiver which message types to expect, it will automatically use whatever it
receives on serial port x.
Table 4.3. Differential Remote Station Commands
Command
$PASHS,RST
$PASHS,RTC,REM,x Set the receiver as a remote station, receiving corrections on serial
Differential Operation
DG16
Figure 4.2. RTCM Remote System
Reset the receiver to factory defaults
port x
Description
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