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- It is also not recommended to set too high a level for the parameter Duration ST when working in
trashy areas, for a clearer separation of closely spaced targets.
Factory default values for all parameters are stored in memory and the user can always go back to
them. To perform this you must first turn on the device while at the
Same time holding down the MENU button and hold it until the end of the melody.
Program 1 is designed for easy and comfortable search of shallow objects
Program 2 designed to search in trashy areas. Has a good response, but slightly inferior in sensitivity.
Program 3 is the main program of research, combining the best combinations for a comfortable
search with near maximum sensitivity.
Program 4 - for when you want to search at slightly greater depths, however, it is worth
remembering that it reduces the comfort of searching, identifying deteriorating properties of the
device, as well as the time from one set of batteries is reduced by 2-3 times.
Remember that the default settings are not an absolute, but offered only as a starting point to assist
your search. Experiment and we hope that in the near future you will make your own comfortable
and effective program.
As our product evolve our company reserves the right, without notice, to change the value of the
factory settings.
A very useful practice is to switch between user modes to access changes in menu options. A good
example of this is changing “Backlight” settings. To do this there are a pair of identical search
programs (1 and 2, 3 and 4) the only difference is the value of the backlight (one pair of programs is
on, the other is off). Further, if you need to change the current state of the backlight, no need to go
to the menu and look for the desired setting. You can just toggle the search program.
USING THE HODOGRAPH FOR IDENTIFICATION
We have previously mentioned about using the hodograph for identifying targets. But what is the
hodograph and what it is for? The received signal is characterized not only by its amplitude and
phase, but it is also a vector quantity. Amplitude and phase depend on the electro physical
parameters of objects such as conductivity, magnetic permeability,depth, geometry, etc.
To accurately describe the nature of the received signal from an object is very difficult, given the
variety of influencing factors. However, it is possible to point out some general patterns. Earlier, we
mentioned that the signal is a vector quantity characterized by amplitude and phase. If you hold any
metal object to the coil it is evident that the magnitude of this vector will vary. The end of the vector
will describe, on a coordinate plane, some shapes (lines, loops, etc.). These shapes are called
Hodographs. The latter most closely describes the complex interactions of the coil with metal
objects.
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