Novatel OM-20000149 Manual Do Utilizador

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AG-STAR User Manual Rev 2
60
Appendix C 
Logs
C.1
Position Logs
C.1.1
NMEA Logs
The NMEA logs (receiver outputs) supported by the AG-STAR are summarized in the 
. The available logs include:
GPGGA, which outputs a log of position system fix data and undulation. There are variants of 
GPGGA, specifically:
-
GPGGALONG, which has both greater precision and the undulation field 
GPVTG, which outputs track made good and ground speed
The steps for configuring the receiver output, through the command line are:
1. Configure the communication port using the COM command, described in Section B.2, COM Configure 
COM Port on page 50. To set COM port 2 as follows:
enter the following string:
com com2 9600 n 8 1 n off on
2. Select and configure the NMEA string that you want to output. For example, to log gpgga (position 
system fix data and undulation) at 2 Hz, enter the following string:
log gpgga ontime 0.5
You can configure the log to output at various frequencies, as described in Section B.4, LOG Request Logs 
from the Receiver
 on page 53
.
The above command line operations can also be carried out through NovAtel Connect. Information about 
configuring the communication port can be found in the NovAtel Connect online help. The procedure for 
adding a NMEA log through NovAtel Connect is summarized as follows:
1. In the Logging control window, click Logging to one or more of the receiver's serial ports. The Add Log 
window displays.
2. Beside Select list, select Complete List or NMEA List.
3. Beside Log to file, select the NMEA log you want to add.
4. Select the port.
5. Configure the remaining fields then click Add.
Bit Rate
9600
Parity
none
Data Bits
8
Stop Bits
1
Handshaking
None
Echo
Off
Break
On