Wavecom W-SPECTRA (Automatic Monitoring System) V1.1.0 - Manual (Page 41)

WAVECOM Monitoring System W-SPECTRA, W-SPEED Manual V1.1.0Complete Automatic Monitoring System W-
SPECTRA
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 The Direct mode can also run automatically to “sweep” the spectrum in a small range so that a
signal can be fine tuned to the spectrum middle. The user can also do this tuning manually by
clicking the “Previous” or “Next” button.
“Direct mode” tab with database and sweep parameters setting.
In the “Direct mode” tab the user can view and edit database entries. In the lower part the user can set
parameters of the automatic sweep:
 Range: how far the spectrum sweep can run.
 Step: frequency step of each jump.
 Dwell: how long should the spectrum stay at one frequency until it moves to the next frequency
(+/- step size). It defines how fast the sweep is running.
The four buttons at the last line have the following definition:
 Start button: starts the sweep function. The receiver will jump to the next frequency according to
the “Step” size and “Dwell” interval.
 Stop button: stops the automatic sweep function.
 Previous and Next buttons: the user can tune the receiver frequency manually to the previous and
next value respectively according to the “Step” size.
Memory Scan
– Revisit and Verify the Spectrum
W-SPECTRA runs in Memory scan mode over an existing database. Each database entry sets the receiver
(SDR) and the decoder or classifier accordingly. In this way the user is revisiting the spectrum and verify-
ing the database entries. The user may insert a new entry into the database or just overwrite the old one.