70 GSM19 Series Magnetometers - Version 7
GEM Systems, Inc. Advanced Magnetometers
For more technical information, visit www.gemsys.ca
6. DATA ORGANIZATION AND TRANSFER
A new file is created automatically in the following cases:
1.
You select a new survey mode and take at least one reading.
2.
The current file runs into a new day (midnight crossing)
3.
You stop and re-start a base unit.
6.1 FILES AND DIRECTORIES
You can store up to 50 files in the mag. File names have a format similar to 01survey.m, where you
can only change the 6 letters between the first number and the period. The unit automatically
assigns Numbers 01 to 50, and the file extension. File extensions include the following:
.m mobile
.b base
.g gradiometer
.fmh fast mag hip chain
.fma fast mag auto cycle
.fgh fast grad hip chain
.fga fast grad auto cycle
.vX vlf only . X represents the number of VLF stations used (1 to 3)
.mvX mobile+vlf. X represents the number of VLF stations used (1 to 3)
.gv X gradiometer+vlf. X represents the number of VLF stations used (1 to 3)
.wm walkmag
.wg walkgrad
.wmv walkmag+vlf
.wgv walkgrad+vlf
The GSM-19 has a directory function you can use to show all the files in the mag.
• To access this function, press C-info in the Main Menu and then press D-dir. The file names
are displayed on the left, and the number of readings in this file on the right.
• Press F quickly to view the next files.
• If you press and hold F, you see the file number followed by the date and the time of the first
reading of the file.
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