White’s Electronics Classic 1 SL - Manual (Page 12)

White’s Pulsescan Field Manual
Threshold Facts -
Setting the Threshold either above or below the ‘chatter’ is beneficial.
When setting above so you hear a constant hummmmmm, be sure not to advance the control further than that set-
ting or smaller targets may be camouflaged by the noise.
When setting the Threshold just below the chatter be sure to keep it barely quiet. When operating with this method,
slower sweep speeds will still pick out deeper relics.
NOTE: If operating quietly, be sure to Ground Balance the PulsescanTDI prior to reducing your threshold.
Advanced User Technique -
After you do your initial ground balance and set up try this –
Set the Conductivity switch to LOW. Then turn the Ground Balance Control to the (2-4) range. Depth on low con-
ductivity targets increases dramatically.
Now, set the Conductivity switch to HIGH. Then turn the Ground Balance control to 9 or 10. Depth on high conduc-
tive targets increases.
Finally, set the Conductivity switch to ALL. Then turn the Ground Balance control to 6 (dead center on the dial).
Depth on both high and low conductors is improved.
Targets -
HINT – When the PulsescanTDI gives a LOW tone, placing the coil on the ground beside the target and then
SLOWLY moving over the target will often cause the WOOWOO of deep big iron items to become more evident.
HINT – Once a target is located, turning down the gain until it almost disappears will give a great indication of prob-
able depth. The lower you can turn the gain, the more shallow the target. This should greatly reduce target recovery
time and hole size.
HINT – Like VLF detectors, shallower targets will give a stronger signal than a deeper target which produces a
weaker response.
Gain Control -
Extensive testing with the PulsescanTDI has not indicated a positive effect when advancing the Gain control past
7-8.