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To leave the configuration menu of the CHANNEL-FREQUENCY mode, just press
the key of the operating mode you wish to access.
4.2.4 SPECTRUM ANALYSER operating mode.
Pressing the
mode. This function has 4 different operating modes (SPECT, MAX, MIN and TRANS),
which are selectable through the spectrum mode configuration menu (see section
4.2.4.5).
4.2.4.1
SPECTRUM operating mode.
In the SPECTRUM mode, the PROMAX-10 provides a spectral analysis of the
band; the span and the reference level are variable. The spectral analysis can be done
in the forward band or in the return path as it is selected in the spectrum configuration
menu (section 4.2.4.5); this menu also allows to select the detector used for the
representation of the spectrum between peak and average .
The marker frequency is displayed in the
higher left hand corner of the screen (650.00 MHz)
and, to its right, the frequency signal level (34 dBµV).
To alter the marker frequency turn the rotary selector
[9].
By pressing the rotary selector [9]
you can alter the span between 1 MHz and
100 MHz.
Frequency tuning resolution varies according to
the span selected, as shown in the following
table.
DETECTOR
PEAK
Page 30
key the unit switches to the SPECTRUM ANALYSER
SPAN
100 MHz (full span in the
return path)
50 MHz
30 MHz
15 MHz
5 MHz
1 MHz
USER'S MANUAL. PROMAX-10
IMPORTANT
Figure 25.- SPECT mode.
Figure 26.- SPECT mode, span reduction.
FREQUENCY
RESOLUTION
900 kHz
450 kHz
275 kHz
135 kHz
45 kHz
10 kHz
04/2004
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