USER’S MANUAL. PROMAX-10
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Figure 29.- SPECT mode, span reduction.
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
SPAN
FREQUENCY
RESOLUTION
100 MHz (full span in the
return path)
900 kHz
50 MHz
450 kHz
30 MHz
275 kHz
15 MHz
135 kHz
5 MHz
45 kHz
PEAK
1 MHz
10 kHz
30 MHz
280 kHz
15 MHz
140 kHz
5 MHz
50 kHz
AVERAGE
1 MHz
10 kHz
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.
Figure 30.- Reference level
modification.
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.
Figure 31.- Reference line.
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 PROMAX-10
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holds on the
screen the maximum measured level through a dotted
line.
Figure 32.- MAX mode.
