WiNRADiO G65DDC User’s Guide
39
Tuning Tab
The
Tuning tab
contains controls for
Passband tuning
,
BW presets
,
demodulator spectrum
Centering
,
AFC
(
Automatic Frequency Control
),
TTP
(
Tune to Peak
) and
Stepping
controls. For the AMS, ISB and DSB
modes, it also contains lower or upper sideband selection, and for the UDM
mode there is also a mode selection.
Passband tuning
The 'passband tuning control' duplicates the function of dragging the
demodulator passband using the right mouse button. These two methods
(drop-down or mouse) are interchangeable. The advantage of this control is
that the actual tuning offset is visible and can be precisely adjusted.
Passband tuning makes it possible to finely adjust the demodulator filter
position in the AMS, LSB, USB and CW modes without a whistle effect due to
a misaligned BFO, making it possible to avoid interference and finely tune the
receiver for optimum reception.
Pressing the
Reset
button sets the passband tuning offset to zero.
Demodulator Bandwidth Presets
The
Demodulator filter bandwidth
(which represents the overall selectivity of
the receiver) can be set in two ways: The quickest way is to use the preset
values represented by the row of 15 buttons at the bottom of the Tuning tab:
