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USER'S MANUAL. PROMAX-10
Press CONFIG again to CONFIGURATION next page 2/2.
ANNEX ITU-T:
System used according to the
country. Possible values are
DVB, B or C.
QAM Modulation: It is the QAM modulation used.
Selectable values are 16, 32,
64, 128 or 256.
Symbol Rate:
It is the rate of symbols
sent. The range is from 1000 to 7000.
Attenuation:
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.
Quadrant:
To select what constellation quadrant you want to view: ALL,
Q1, Q2, Q3, Q4, Q1+, Q2+, Q3+, Q4+.
Remark: When switching from frequency to channel, if the tuned frequency does
not correspond to any channel, the PROMAX-10
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 mode, the PROMAX-10
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
representation of the spectrum between peak and
average.
The marker frequency is displayed in the
higher
left
hand
corner
(650.00 MHz) and, to its right, the frequency signal level (34 dBµV). To alter the marker
frequency turn the rotary selector [9].
11/2008
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key the unit switches to the SPECTRUM ANALYSER mode.
used
for
the
of
the
screen
CONFIG QAM: 2/ 2
Figure 37.- CONFIG QAM .2/2.
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will search for
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provides a spectral
Figure 38.- SPECT mode.
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