Promax -10 SE Manuel D'utilisation page 95

USER'S MANUAL. PROMAX-10
Attenuation:
Quadrant:
Remark: When switching from frequency to channel, if the tuned frequency does
not correspond to any channel, the
the channel nearest to this frequency and will stay tuned to this
channel. This operation may take a few moments.
4.2.4 SPECTRUM ANALYSER operating mode.
Pressing the
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
PROMAX-10
SE 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
selector [9] you can alter the span
between 1 MHz and 100 MHz.
Frequency tuning
according to the span selected, as shown in the
following table.
07/2011
SE
It is the level of attenuation applied on the output. It could
work in automatic mode or in a range from 0 to 60 dB.
To select what constellation quadrant you want to view: ALL,
Q1, Q2, Q3, Q4, Q1+, Q2+, Q3+, Q4+.
key the unit switches to the SPECTRUM ANALYSER mode.
mode, the
the rotary
resolution varies
PROMAX-10
SE will search for
Figure 38.- SPECT mode.
Figure 39.- SPECT mode, span reduction.
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