User's Manual

WiNRADiO G39DDC User’s Guide
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Pressing this button will reduce the height of the spectrum scope at the bottom
and utilize the extra space for the recorder controls.
The recording controls of the DDC1 and DDC2 spectrum scopes appear
identical. However, their functions differ: The recording controls of the DDC1
spectrum scope relates to the DDC recorder, making it possible to record the
entire DDC1 bandwidth (up to 4 MHz wide), while the Audio recorder in the
DDC2 panel serves to record the demodulated audio.
As each of the two virtual receivers has its own DDC and demodulator, each of
the two receivers can record either (or both) the DDC stream and demodulated
audio independently and simultaneously, and so create four separate files at
the same time: Two DDC files and two audio files.
The DDC recorder can be very useful in situations where there the spectrum is
to be searched for interesting stations, or even when just a single signal is of
such significance where it needs to be repeatedly analysed with various
receiver settings. A weak or interference-obscured signal can thus be “re-
received” many times with different demodulator filter bandwidths, notch filter
or audio filter settings, etc., to arrive at the best possible demodulated audio.
Recording starts when the Recording button
is engaged, and stops when
the Stop button
is pressed. A Pause button is also available, to
temporarily pause both the recording and playback.
Playback is done by pressing the Play button
. The Loop button makes
it possible to keep playing a recorded file in an infinite loop.