Wavecom W-SPECTRA (Automatic Monitoring System) V1.1.0 - Manual (Page 44)

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Complete Automatic Monitoring System W-SPECTRAWAVECOM Monitoring System W-SPECTRA, W-
SPEED Manual V1.1.0
 Previous and Next buttons: manually jump to the previous and next frequency respectively ac-
cording to the Step size.
There are 5 search strategies in which the classifier code check can work:
Process Steps P1 Only classification is performed, but no decoding
P2 Classification and table check are performed, but no decoding
P3 Classification, table check and code check are performed, but no decoding
P4 Classification and table check are performed and finally the signal is decoded if
a mode with an associated, valid detector was found
P5 Classification, table check and code check are performed and finally the signal
is decoded if a mode with an associated, valid detector was found
Scan Delay in Automatic Modes
In all three operation modes (Direct mode, Memory scan and Frequency search) the classifier code check
adopts a “scan delay” method: When the classifier and code check find a signal at a frequency, the auto-
matic jump to the next frequency / database entry is deferred until the complete classifier code check re-
sult is delivered. In this way W-SPECTRA delivers more precise, stable and reliable monitoring results.
Summary of the Three Operation Modes
The following table summarizes the three operation modes and their parameters.
Direct mode Memory scan Frequency search
Description Classify and decode a
signal by setting a re-
ceiver frequency manu-
ally. Use “Sweep” mode
to catch a signal in a
small range Rescan and verify the
spectrum according to da-
tabase entries. New result
can be inserted into the
database Automatic search signals
(classify and code check)
over a predefined frequency
band according to a search
strategy. Results automati-
cally inserted into a data-
base
Start button Start to sweep over a
defined
frequency
range
Start to rescan the spec-
trum according to the da-
tabase entries Start to search signals in a
wide range of frequency
Stop button Stop sweeping Stop rescan Stop searching signals
Previous button Jump to the previous
frequency according to
the step size Jump to the previous data-
base entry Jump to the previous fre-
quency according to the
step size
Next button Jump to the next fre-
quency according to the
step size Jump to the next database
entry Jump to the next frequency
according to the step size
Default (recom-
mended) values
Sweep range: 3000 Hz
Step size: 100 Hz
Dwell period: 1 sec
Time interval: 15 sec Step size: 1000 Hz
Time interval: 15 sec