Promax 10 SE, Руководство пользователя

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USER’S MANUAL. PROMAX-10 Premium
Page 36 11/2008
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.
Figure 39.- SPECT mode, span reduction.
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.
Figure 40.- Reference level 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 41.- Reference line.
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 PROMAX-10 Premium holds on the
screen the maximum measured level through a dotted
line.
Figure 42.- MAX mode.