Your SIR 3000 is capable of attaching GPS coordinates to individual data profiles. This will allow you to
place the beginning and the end of your survey lines into a larger, real-world coordinate system provided
that you: 1) Survey in straight lines and 2) Have a GPS with sufficient accuracy for your application.
GSSI will publish specific integration information as a series of Technical Notes available on the GSSI
Technical Support website at
.
Attaching a GPS with its own data logger, such as the G30L available from GSSI, will allow you to
collect GPS data points with a much finer resolution. RADAN 6 will then be able to wrap data files and
show coordinates with a GPR X, Y, and Z.
The GPS you do choose must have the following:
1.
Provide data output through a serial (RS232) port.
2.
Output data at a baud rate of 4800.
3.
Output the NMEA GGA data string.
GSSI only supports the G30L receiver or integration with the Acumen serial data bridge logger
available from GSSI.
Try your GPS to determine if you are getting a good position and an adequate number of satellites.
Setup and power up your SIR 3000 as normal.
Under COLLECT > RADAR, highlight the GPS menu choice and click Enter. Toggle to G30L for
the GSSI provided receiver or to CUSTOM for any other receiver and click the Right arrow.
The Enable GPS dialogue box will pop up. Follow the instructions in the window to connect your
GPS. You should ensure that your receiver is tracking at least 4 satellites. If you are using the G30L,
4 is the minimum number of satellites you can use.
When you start a data profile, the SIR 3000 will capture a GPS coordinate and place it in the file
header. It will do the same when you stop the data file and save it. These coordinates will be visible
when you view the file header in RADAN 5.0 or higher.
The .TMF file. You will notice that the SIR 3000 has created 2 files: the data profile (.DZT) and
another file with the same name but a different extension (.TMF). This file will be used for some
added GPS functionality which is not yet available.
East vs. West. The SIR 3000 is set to capture Latitude and Longitude coordinates rather than UTM.
It does not however tag a North/South or East/West to those numbers. If you are west of the Prime
Meridian, the Longitude will be negative and if you are south of the Equator, the Latitude will be
negative.