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Mixed response, Wrap-around, Status bar – White’s Electronics Spectra VX3 User Manual

Page 61: Status bar -8, Spectra vx

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Page 5-8

Spectra VX

3

User’s Guide

Mixed response

Sometimes you will see response bars that include both

green and red:

This simply means that the target is on the edge of the rejec-

tion/acceptance point. Because each bar is 7 VDI points wide a
target that is accepted can still show some red in the response
bar.

In the above graph, notice that the 22.5k and 7.5k frequen-

cies are nicely aligned, and the 2.5k response is both slightly
skewed and broader. This generally indicates that the 2.5k
response is less reliable, as it had trouble “locking” to a particu-
lar VDI.

Wrap-around

Occasionally targets will “wrap around” between +95 and -

95. This can be due to a high conductive target (a silver dollar,
we hope) getting shifted upward by mineralization. Or, on the
down side, it could be due to a “cold rock,” a mineralized rock
that is below the ground balance point. Again, paying attention
to how other targets are behaving

4

will give you a strong clue as

to which of these is more likely.

Status Bar

The final part of the screen to discuss is the Status Bar. To

the left is a group of icons which depict (1) the trigger switch
mode, (2) wireless headphone status, and (3) backlight status.

4. Are dimes and quarters tending to read high? This could be due

to mineralization.