Audio Recovery; Beach Mode; Ths-B Null Variance - QED PL3 Owner's Manual

Audio Recovery

Just to state the obvious, always wait until the audio (fully) recovers before swinging back over a
target.
It is amazingly easy to swing back too soon and thus not get the expected signal response on the
way back over the target.
Next time you are out, experiment with the above and you will see what I mean.
It is very important to swing over the target in both directions and past the target so that the target is
no longer under the influence of the coil.
This will also allow the double tone indicator or wire/nails to be heard.

Beach Mode

Not a great deal has been said about beach mode (mode 16 pre-update; 11 post update), so I offer
the following advice:
Even though beach mode has no ground balance, the MGB still works but in a more internally
simplistic manner, so can be used to quieten the QED as follows:
Start at MGB of 150, then
• Wet sand: increase MGB from default until quiet
• Dry sand: decrease MGB from default until quiet
If any other users have used the QED on sand or at the beach, then please add your tips here so
that others can benefit from your experience.

THS-B NULL Variance

The THS-B NULL setting can vary by as much as 5 from a very hot day (approx 30+C) to a very cold
day (approx. 10 C), so it's most important to find your NULL point each time you are out detecting.
As the box warms up, especially from a cold day, the THS-B NULL point may move, so check it
again after around 30 minutes just to be sure.
In addition, THS-B NULL may vary between QEDs, meaning that your mate's QED NULL could be a
different number to your own on the same day at the same place.
So for both of the above reasons, we should all refer to our THS-B setting as relative to NULL. For
example, use '2 below NULL'; 3 above NULL, etc, rather than using a hard number like 45.
For some fellow QED owners 45 is NULL, whereas for others it could be 5 below NULL.
By referring to it this way will ensure that anyone wanting to try out someone else's settings will be
able to set up correctly and hopefully find a bit of yellow.
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