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GSM19 Series Magnetometers - Version 7
GEM Systems, Inc. Advanced Magnetometers
For more technical information, visit www.gemsys.ca
APPENDIX C: VLF SURVEY OPTION
The VLF option to the GSM-19 Series is available on its own or in conjunction any model of
magnetometer or gradiometer. When installed in conjunction with magnetometer modes, the VLF
mode can be used alone or combined with mag modes.
GENERAL NOTES:
Base Station modes cannot be combined with VLF.
When combined with walk modes, the VLF reading is not taken while walking.
Instead, when F is pressed to mark a station label, the unit interrupts the cycling,
take the VLF reading, and then prompts you to reassume the magnetometer cycle.
The walkVLF option is yet to be implemented in version 6 mags.
OPERATION NOTE***
The following instructions are regarding the VLF option only . It is assumed that
the operator knows how to operate the GSM-19 magnetometer. If not, please refer
to GSM-19 Manual for more detailed operation description.
C1. ACCESSING THE VLF FUNCTIONALITY
Press B
- to turn power on and display the
Main Menu
Press A
- Survey to access the
Survey Menu
Press C
- to change the
Survey Mode
Depending on the available survey modes, a screen similar to the following one is displayed:
SCREEN C1
A-mobile B-base
D-vlf E-vlf
Press
D
or
E,
or the command to the VLF survey mode you want to use.