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Remote Stations
Setting Up a Differential Remote Station
You must have the Differential remote option [U] installed on your receiver.
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 GG Surveyor serial
ports.
Send the following commands to the receiver. The receiver will accept RTCM
differential corrections in message types 1 or 9 (for GPS) and 31 or 34 (for
GLONASS). You do not have to tell the receiver which message types to expect, it
will automatically use whatever it receives on serial port x.
Command
$PASHS,RST
$PASHS,RTC,REM,x
$PASHS,SPD,x,n
$PASHS,SAV,Y
You have now set up the remote station. Turn on the GGA, GLL, POS or PBN
message to obtain position.
Setting Up an RTK Remote Station
Operating an RTK remote is almost identical to operating a Differential remote
receiver. The main differences are:
1.
2.
You must have both the Differential remote option, [U], and the Phase differential
option, [J], installed in your receiver.
You must have a source of RTK data, usually a radio receiving a transmission from
an RTK base station. Connect this radio to one of the GG Surveyor serial ports.
54
Table 5.7: Differential Remote Station Commands
Reset the receiver to factory defaults
Set the receiver as a remote station, receiving corrections on serial port x
Set the baud rate of serial port x to the same as the radio providing the
corrections.
Save settings
The data from the base station is RTCM Types 18,19,3 and 22, instead of 1
and 31 or 9 and 34.
The accuracy is approximately 100 times better.
Description
GG Surveyor GPS+GLONASS Reference Manual
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