Wavecom W40PC, Manual

Page: 85 / 264

WAVECOM Decoders v6.15 W40PC, W41PC, W51PC Advanced Topics
•
77
VHF REAL-TIME WATERFALL INDIRECT (W51PC,
W40PC)
The Analysis is started with the input, gain, translation frequency etc. that was used, last time
in a VHF INDIRECT mode. This selection is only available in the menu Preferences… the
"When selecting the toolbar "Analysis Buttons" start HF analysis mode" is not enabled. (See
Preferences…
on page 54)
VHF REAL-TIME WATERFALL DIRECT (W51PC, W40PC)
The Analysis is started with the input, gain, translation frequency etc. that was used, last time
in a VHF DIRECT mode. This selection is only available in the menu Preferences… the
"When selecting the toolbar "Analysis Buttons" start HF analysis mode" is not enabled. (See
Preferences…
on page 54)
REAL-TIME SONAGRAM
A second widespread method for FFT display is the Real-time Sonagram which also displays
the frequency, amplitude and time domain parameters of the signal. A sonagram is a graphical
display of an acoustical structure. In the sonagram the signal amplitude is displayed in color
coded dB steps.
This amplitude related spectrum analysis offers many hints to the distribution of a signal
spectrum.
The operation is identical to the Real-time Waterfall analysis.