User Manual

WiNRADiO G3XX VHF/UHF Receiver
Within the displayed spectra, a red color frequency cursor can be manually
dragged, using the left mouse button, over a particular spectral component.
The two Vector Voltmeter displays labelled Left/Right indicate the relative
amplitude and phase difference between the two spectral components at the
cursor frequency.
For synchronous demodulation of amplitude modulated signals (the AMS
mode) without carrier or with a fluctuating one, the G3XX demodulator uses a
PLL carrier recovery technique based on the Costas loop:
Synchronous AM Demodulator Structure
The LSB and USB demodulators have basically the same topology. ISB can
be thought of as a combination of LSB and USB, where each of the sound
card channels is used for one of the independent side bands.
USB Demodulator Structure
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