WiNRADiO G33DDC HF Receiver
80
The attenuator is variable from zero to 21 dB, in 3 dB steps. It can be engaged
by pressing the
Attenuator
button, which will also enable manual selection of
the attenuation value.
Pressing the
Auto
button will adjust the attenuator automatically by increasing
the attenuation to the point when overload stops. (However, it does not
automatically decrease the attenuation if the original strong signal disappears;
this needs to be done manually.)
If sensitivity appears poor, please first ensure that the attenuator is
disabled.
Preamplifier
The
Preamp
button engages a low noise preamplifier, which adds approx
10 dB of amplification to the front-end, and so increases sensitivity.
Please note that the actions of both the attenuator and preamplifier are
compensated for by the S-meter. This means that the S-meter always
displays the actual signal strength at the antenna input, within the
available measurement range.
Dithering
The
Dithering
function is selectable using the
Dithering
button located under
the wideband spectrum:
