Basic operation
The receiving filter bandwidth
The receiving filter bandwidth can easily be adjusted with the mouse.
The lower and upper filter edges can be adjusted separately, by moving the
corresponding edges of the filter slider with the mouse. The whole filter can also be
moved, by dragging the meddle part of the filter slider. With a right button mouse
click onto the meddle part of the filter slider a list with predefined filter bandwidths
will appear.
The filter edges and its bandwidth may be altered also by positioning the mouse
cursor on the according filter slider part and turning the scroll wheel. Hold down the
Ctrl key and rotate the mouse wheel with the cursor placed in the middle area of
the slider to adjust the width of the filter without changing the center frequency.
The filter edges can be changed also by moving the filter edges directly in the
display of the spectrum or the waterfall.
You can also use the three buttons with predefined values of the filter
parameters. By pressing the right mouse button on any of them opens a window for
adjusting the parameters of the button.
The minimum filter bandwidth is 50 Hz, the maximum bandwidth is limited to 10
kHz, but it cannot exceed half of the selected sample rate of the audio signal.
The filter bandwidth is stored separately for each mode (AM, SSB, CW).
In the Settings window the steepness of the filter edges can be predefined for the
modulation modes CW and SSB (AM mode uses the same values as set for SSB). The
higher the steepness is set, the better neighboring stations are suppressed, but the
latency of the audio signal will become higher.
Basic operation
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