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12 Spectrum analyser
Pressing SPECTRUM gives access to the
SPECTRUM ANALYSER function.
2 modes are available:
expert mode
and simplified mode. This selection is made at
Configuration
page.
12.1 Simplified Spectrum
Satellite
Terrestrial
2 predefined bandwidth are available: terrestrial and satellite. To swap from satellite to terrestrial, press
the key, as shown on the bottom side of the screen.
The input attenuator is automatically setup according to the level of the signals measured.
Filters are automatically selected according to the « Span ».
The filter use dis displayed on the upper left corner.
Parameters of the spectrum are :
Channel
:
use a
channel for the
spectrum (in terrestrial
mode).
Cursor
: simply press the area
where you want to move or set the
cursor
Span :
frequency span around the
center frequency
Reference level
: can
be modified with up-
down arrows
/div
: amplitude vertical
scale 2dB, 5dB or
10dB
List
: you can select a
Program (in the current list)
X dB :
attenuator
choice (auto, 5, 10,
15dB,…)
Frequency range
: can
be changed using the
arrows
Frequency
: value of the
frequency where the cursor is,
user can enter a frequency
value, or increase
– decrease
the frequency with +/- keys
