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DETECTOR
PEAK
AVERAGE
By pressing the rotary selector
[9] again the reference level may be
modified.
Pressing the rotary selector [9] a second
time will activate the tuning frequency field of the
marker, being possible to tune new frequencies.
The attached figure shows an horizontal
line at 45 dBµV. This line allows to identify levels
over a reference of our interest easily. The
activation and definition of this reference line is
carried out on the spectrum analyser configuration
menu.
4.2.4.2
MAX operating mode.
The SPECTRUM operating mode also
permits to be configured as maximum hold
(MAXIMUM INGRESS). This option is selected on
the Spectrum Configuration menu (section 4.2.4.5).
In the MAX mode, the
the screen the maximum measured level through a
dotted line.
This measurement is used to be carried out on the return path and permits to
detect intermittent interferences.
Since on this operation mode the
maximum measured value (through a dotted line), after making several measurements
over the band, it will be possible to detect impulsive type interferences. It is advised to
previously define a reference line which actuates as a maximum noise threshold
(30 dBµV on previous figure).
Page 36
SPAN
100 MHz (full span in the
return path)
50 MHz
30 MHz
15 MHz
5 MHz
1 MHz
30 MHz
15 MHz
5 MHz
1 MHz
PROMAX-10
SE
holds on
PROMAX-10
USER'S MANUAL.
PROMAX-10
FREQUENCY
RESOLUTION
900 kHz
450 kHz
275 kHz
135 kHz
45 kHz
10 kHz
280 kHz
140 kHz
50 kHz
10 kHz
Figure 40.- Reference level modified.
Figure 41.- Reference line.
Figure 42.- MAX mode.
SE
holds on the screen the
SE
07/2011
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