22
When a target is detected, the rectangular segments representing the target category
are illuminated.
Notice the segment status along the arc, and the discrimination parameters they
represent, vary as you adjust the DISC level with + or -.
For DISC value (at bottom right
-
hand corner of screen) up to 40:
•
Operation in tone discrimination only – no targets are eliminated from detection.
•
Target-ID’s less than the DISC value inducing a LOW tone – represented by
shaded segments.
•
Target-ID’s greater than the DISV value induces V.C.O. audio – represented by
solid segments.
For DISC value between 41 and 79:
•
Targets in the blank segment region are not detected.
•
Target-ID’s led than the DISC value induces a LOW tone – represented by shaded
segments.
•
Target-ID’s greater than or equal to the DISC value induce V.C.O. audio –
represented by solid segments.
At DISC value = 80:
•
All detected target targets induce HIGH tones- represented by solid segments.
•
There are no LOW tones – no targets under 80 are detected.
SUGGESTION
:
Try changing the settings, watch the screen, and pass objects over the search coil at
each setting. It will quickly become obvious how these controls work.
This discrimination interface for the TX-850 was designed especially for relic-hunting.
Relic hunters want control over what sizes or iron are detected, and also control over
which targets are detected with a low-tone. Target values of 40 or less are ferrous.
Value from 20 to 49
will induce a LOW
tone
Value from 50 to 100
will induce a V.C.O.
tone
This value and higher
will induce a V.C.O.
tones
Value less tahn 20 will
NOT BE DETECTED
