SOFTWARE
90
To select a value, click on the corresponding field. The indicator displays the selected value
2. Use the
(decrease value) and
(increase value) buttons.
The scanning step determines the viewing range of the SPECTRUM ANALYZER:
scanning step 200 kHz - viewing range 60 MHz (maximum band);
scanning step 100 kHz - viewing range 30 MHz;
scanning step 50 kHz - viewing range of 15 MHz (minimum band).
When changing the scanning step, the SPECTRUM ANALYZER is scaled (in frequency) relative
to the position of the marker (Fig.70, item 3), which is always the center of the new range.
MARKER CONTROL
There are two methods of marker control (Fig.70, item 3):
1. Use the
(decrease value) and
(increase value) buttons
.
(Fig.70, item 11). The
position of the marker then changes to the set scanning step.
2. By clicking on the corresponding area of the SPECTRUM ANALYZER screen (Fig.70, item 2).
The frequency value on the marker is displayed on the indicators (Fig.70, item 4 and item 11).
8.3.5. THE DIFFERENTIAL MODE
In the DIFFERENTIAL mode, the levels of all signals detected earlier are taken as "0".
On the SPECTRUM ANALYZER screen, only signals with a level exceeding previously recorded
(difference spectrum) are displayed.
It is possible to adjust the parameters and control of the SPECTRUM ANALYZER.
To turn on the mode, click
(Fig. 70, item 13).
The button will take the form
Signals detected in the last scan cycle are indicated in purple. Olive color displays the
maximum signal levels received for the entire time of operation (from the moment the
DIFFERENTIAL mode is turned on).
To turn off the mode, click
8.3.6. OSCILLOSCOPE
In OSCILLOSCOPE mode, the signal is analyzed at a fixed frequency, the value of which is
displayed on the indicators (Fig.70, item 4 and item 11).
The analysis is performed by the oscillogram and by listening to the demodulated signal.
It is possible to scale the time axis of the OSCILLOSCOPE and change the type of modulation
(AM / FM).
To turning on the OSCILLOSCOPE or the SPECTRUM ANALYZER, click on the corresponding
area of the screen (Fig.70, item 16 and item 2).
