Specifications

13
Attenuators (1)
Attenuators allow you to attenuate the input signal by a preferred amount. Users can choose among 0, 10 and 20 dBm
attenuation. The “Auto” button enables automatic attenuation, based on the current input signal level.
Front-End (2)
In the front-end sections, users can control antenna input and select preamp operation. Preamplificator is on when the button is
lit. “Ant.1” and “Ant.2” buttons allow selecting the desired antenna input. If the optional AS5001 antenna switch is present, it's
possible to select antenna input 3 or 4 clicking on the “Ant.Ex” button. The currently used antenna button will be lit.
Main spectrum window controls (3)
Under the main spectrum window, there are 10 buttons that allow user customization of the software. “Spect” button shows line
spectrum view, while “Wfall” enables waterfall view. Users can reverse waterfall direction by clicking again on the “Wfall” button.
While in waterfall mode, the “Palette” button will be selectable and clicking on it will pop-up a new window that allows palette
selection among 9 predefined palettes.
“NBW” and “NBN” buttons control noise-blanking filters and operate at different stages. “NBW” enables a wideband noise
blanker working on the full bandwidth range, before demodulation and any other signal processing; “NBN” enables narrow
band filtering.
“Afc” enables automatic frequency control (tuning); if enabled, the demodulator will tune the frequency automatically, trying to
track small frequency changes in the source signal. This operation mode is only available in FM mode.
“Mono” button is only selectable in WFM mode and forces single-channel audio decoding even if a stereo carrier is detected.
If “Labels” is selected and enabled, the main spectrum view will also show a dBm amplitude scale; moreover, a frequency and
amplitude indicator will follow the mouse pointer while hovering on the main spectrum window in both spectrum and waterfall
mode.
If “PeakSrc” is also selected, the indicators will snap to the highest peak close to the current mouse position.
If “Auto” is enabled, the software will choose the preferred demodulator and filter settings, depending on the currently tuned
frequency and area (Europe, Japan, USA).
Demodulation (4)
The software allows many demodulators, selectable by clicking on the desired button. “AM” selects amplitude modulation
demodulator. Synchronous demodulation is also possible, by selecting the “SAM“ button. “RTTY” and “CW” are
self-explanatory; the demodulators will produce a tone when receiving signals. “LSB” and “USB” refer to lower and upper
sidebands; these demodulators allow the decoding of AM signals with a suppressed sideband. “FM” and “WFM” demodulators
will decode frequency-modulated signals, and in particular the “WFM” mode will allow 260 kHz wide filtering. “DRM”
demodulator will output an 8 kHz IF DRM signal on a virtual audio cable (only if third-party software VAC is installed -
http://software.muzychenko.net/eng/vac.html ); for optimal DRM demodulation, it's best to set the AGC block to “Slow”. “USER”
demodulation simply outputs on the VAC zero-IF I/Q samples, after filtering and normalization with current AGC settings.
Amplitude (5)
While in spectrum mode, users can select a preferred reference level and view scale, clicking on the arrows available on the
right side of the “Ref Lev” and “Scale” indicators in the “AMPLITUDE” section.