Robotron Pty Ltd G9P 用户手册
WiNRADiO G39DDC User’s Guide
33
Any such attempt will be ignored and the recording button above the DDC
spectrum will flash to indicate the reason why this operation failed. You would
need to stop the recording first, or unlock the receiver in the recorder “toolbox”
settings.
spectrum will flash to indicate the reason why this operation failed. You would
need to stop the recording first, or unlock the receiver in the recorder “toolbox”
settings.
If tuning to a new frequency causes the second 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 the other previously active receiver.
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 the other 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 VFO 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.
a similar way in which you would use the VFO 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:
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 (when the Spectrum button is engaged) will center the
DDC1 passband of the selected receiver to the new frequency. In turn, clicking
on the DDC1 passband will center the DDC2 passband to the new frequency.
application window (when the Spectrum button is engaged) will center the
DDC1 passband of the selected receiver to the new frequency. In turn, clicking
on the DDC1 passband will center the DDC2 passband to the new frequency.
Dragging the Passband
The dark blue rectangular area inside the wideband spectrum scope
represents the DDC1 bandwidth; similarly-colored area in the DDC1 spectrum
represents the DDC2 bandwidth, while, finally, the grey area inside both the
DDC1 and DDC2 spectrum represents the demodulator filter passband. You
can drag all these areas and this will result in a corresponding change of the
tuned frequency. As with point-and-click tuning, there are again some
represents the DDC1 bandwidth; similarly-colored area in the DDC1 spectrum
represents the DDC2 bandwidth, while, finally, the grey area inside both the
DDC1 and DDC2 spectrum represents the demodulator filter passband. You
can drag all these areas and this will result in a corresponding change of the
tuned frequency. As with point-and-click tuning, there are again some