Manual

3.6 DescriptionofControls 3 THE OXFORD DEBUZZER
Hz The large frequency control in the centre is used to set the nominal frequency about
which in AutoMode the detection algorithms hunt for a peak in the peak profile. In
Freeze mode it determines the frequency of the removal filters. The frequency can
be selected using the scribble tab in units of 1Hz (normal), 0.01Hz (Fine adjust) and
0.0001Hz (extreme fine adjust).
FINE ADJUST Sets the frequency control to have a much finer range so that it is easy to
home into a precise frequency value. Holding down shift while moving the frequency
knob enables an extreme fine adjust, where the frequency can be accurately
determined to 0.0001 Hz. If FineAdjust is selected while in Auto tracking mode,
the detector is forced into Freeze mode and the Freeze mode button flashes.
Exiting FineAdjust returns to Auto mode.
FREQUENCY RANGE These buttons set which frequency band the big rotary control will
operate over. LF = 20Hz to 160Hz. MF = 160Hz to 1280Hz. HF = 1280Hz to 20kHz.
PeakProfile This shows the strength of a given nominal frequency in the input signal.
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