WiNRADiO G33DDC HF Receiver
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Any such attempt will be ignored and the recording button above the DDC
spectrum will flash to indicate the reason why this operation failed.
If tuning to a new frequency causes a receiver to be disabled, this disabled
receiver
’s audio will be muted, and the tuned frequency shown in the
corresponding receiver tab will turn red to indicate that this receiver is currently
non-active. Clicking on a disabled
receiver’s tab will re-activate the receiver,
which may in turn disable a previously active receiver.
By clicking on the receiver tabs you can quickly alternate between receivers in
a similar way in which you would use the
VCO
function in a conventional
receiver, but with the additional benefit of being able to change complete
receiver settings including demodulation mode, bandwidth, notch filter, audio
filter, etc.
Point-and-Click Tuning
Pointing and clicking anywhere inside the three spectrum scopes will tune the
currently selected receiver to the corresponding frequency. Also when clicking
on the spectrum, the
Shift
or
Ctrl
keys can be held down, which will round the
tuned frequency to the nearest kHz or 100 Hz, respectively. However, there
are some ramifications depending on which one of the three spectrum scopes
you click:
Clicking inside the
Wideband spectrum scope
at the bottom of the
application window will center the DDC passband to the new frequency. This
means that other receivers may be disabled if they are tuned outside the new
DDC bandwidth, unless they are locked or currently recording. If a receiver
’s
lock or recording status prevents the tuning to be completed, the
corresponding indicators will flash to report this condition.
Clicking inside the DDC or demodulator spectra will always tune the currently
selected receiver to the corresponding frequency. As these selections will
always happen inside the current DDC bandwidth, this new frequency will
always be accepted.
Dragging the Passband
The grey area inside the wideband spectrum scope represents the DDC
passband, while the grey areas in both the DDC or demodulator spectrum
