Promax 8 plus Manual Del Usuario Y Operador página 85

INSTRUCTION MANUEL. PROMAX-8+
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
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.
May 2001
SPAN
100 MHz (full span in the
reverse band)
50 MHz
30 MHz
15 MHz
5 MHz
1 MHz
30 MHz
15 MHz
5 MHz
1 MHz
Figure 26.- SPECT mode, span
reduction.
FREQUENCY
RESOLUTION
900 kHz
450 kHz
275 kHz
135 kHz
45 kHz
10 kHz
280 kHz
140 kHz
50 kHz
10 kHz
Figure 27.- Reference level
modification.
Figure 28.- Reference line.
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