ProNav Norway – a
Company
page 59
Rev.1
10.02.2020
Serial Commands
Serial
commands
The V200s has a maximum baud rate of 115200.
Note:
When selecting baud rate and message types, use the following
formula and example to calculate the bits/sec for each message and then
sum the results to determine the baud rate for your required data
throughput.
Message length (bytes) * bits in byte = Bits/second
(1 character = 1 byte, 8 bits = 1 byte, use 10 bits/byte to account for
overhead)
Table C-1: Serial commands
Command
Description
$JAGE
Specify maximum DGPS (COAST) correction
age (6 to 8100 seconds)
$JAPP
Query or specify receiver application
firmware
$JASC
Specify ASCII messages to output to specific
ports
$JATT, COGTAU
Set/query COG time constant (0.0 to 3600.0
sec)
$JATT, CSEP
Query antenna separation
$JATT, EXACT
Enable/disable internal filter reliance on the
entered antenna separation
$JATT, GYROAID
Enable/disable gyro
$JATT, HBIAS
Set/query heading bias (-180.0º to 180.0º)
$JATT, HELP
Show the available commands for GNSS
heading operation and status
$JATT, HIGHMP
Set/query the high multipath setting for use
in poor GNSS environments
$JATT, HRTAU
Set/query ROT time constant (0.0 to 3600.0
sec)
$JATT, HTAU
Set/query heading time constant (0.0 to
3600.0 sec)
$JATT, LEVEL
Enable/disable level operation
$JATT, NMEAHE
Change the HDG, HDM, HDT, and ROT
message headers between GP and HE
$JATT, PBIAS
Set/query pitch/roll bias (-15.0º to 15.0º)
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