Garrett Metal Detectors Metal Detector GTI 1500 User Manual
Page 32
Whenever you hear unusual sounds and
believe that you are encountering interfer-
ence, press and release the MENU touch
pad until FREQ appears on the screen (as
shown on the previous page). The Upper
Scale will indicate the frequency at which
your detector is now operating. Use the +
and - touch pads to change this frequency
until you find one with little or no interfer-
ence.
Volume
After pressing the MENU touch pad to
display VOLUME on the screen, the fac-
tory setting for the loudness of the target
sound will be indicated on the Upper Scale
(as shown above). Use the + and - touch
pads to adjust audio to the volume that
you prefer. Touching the + pad will make
the sound louder, while touching the - will
lower the volume. Since this adjustment
2 - Garrett Metal Detectors