WiNRADiO G35DDC HF Receiver
22
The grey areas inside both the demodulator and DDC spectrum relate to the
currently selected demodulator filter bandwidth. This bandwidth represents the
selectivity bandwidth of the entire receiver and, for the best signal-to-noise
ratio of the received signal, you might wish to adjust this bandwidth to very
closely embrace the visible spectrum of the received signal. You can do this
either using the
DEM BW
control, or by dragging the edges of the grey area in
the demodulator spectrum.
You can also drag the grey areas sideways, by clicking and dragging at their
centre or anywhere inside them, in both the DDC and demodulator spectrum.
This is equivalent to the
IF Shift
function of conventional receivers.
Clicking on any of the three spectrum scopes will cause the receiver to tune to
the corresponding frequency. As the WiNRADiO
Excalibur Ultra
consists of
three receivers in one, this does have some ramifications which will be
explained in a greater detail in the following chapters.
If you are a newcomer to software-defined receivers and need a little more
detailed background information on software-defined receivers and digital
down-conversion, please read our
SDR and DDC Primer
in
Appendix A
.
Did you know?
Excalibur is the legendary sword of King Arthur, sometimes attributed with magical
powers. The name ultimately derives from the Welsh name for this sword, Caledfwlch.
The Arthurian legend dates back to 12th century.
Summary of Contents for WR-G35DDC EXCALIBUR ULTRA
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