Anritsu Spectrum Master MS2720T, Руководство пользователя

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6-6 Coverage Mapping Menu Coverage Mapping (Option 431)
6-22 PN: 10580-00349 Rev. H Spectrum Analyzer MG
ACPR Menu
Key Sequence:
Shift > Measure
(
4
) key
> Coverage Mapping > Measurement Setup > ACPR
Refer to Chapter 2, “Spectrum Analyzer” for additional spectrum analyzer menus.
Main Ch BW: Sets the bandwidth of the main channel for ACPR
measurement. Use the keypad, the directional arrow keys, or the rotary knob
to enter a specific frequency. When using the keypad, press
the GHz, MHz, kHz, or Hz submenu key to accept the frequency input.
Changing this value automatically changes the adjacent channel bandwidth
and channel spacing.
Adj Ch BW: Sets the bandwidth of the adjacent channels for ACPR
measurement. Use the keypad, the directional arrow keys, or the rotary knob
to enter a specific frequency. When using the keypad, press
the GHz, MHz, kHz, or Hz submenu key to accept the frequency input.
Ch Spacing: Sets the channel spacing between the main and adjacent
channels. Use the keypad, the directional arrow keys, or the rotary knob to
enter a specific frequency. When using the keypad, press
the GHz, MHz, kHz, or Hz submenu key to accept the frequency input. This
value must be greater than or equal to half of the main channel bandwidth,
plus half of the adjacent channel bandwidth. The up or down arrows change
the frequency by the frequency step size entered in the
“Freq (Frequency)
Menu” on page 2-49 . The left or right arrow keys change the value by 10% of
the span.
Adjacent Ch dB Offset: Sets the power ratio offset of the adjacent channels
for ACPR measurement. The entered offset value determines the color of the
lower and upper adjacent channels in the lower part of the display. If the
ACPR value is larger (more positive) than the threshold, the box is green,
otherwise, it is red.
Good and Poor: These submenu keys are used to set the color values for
the recorded power during data collection. The colors of the boxes in the
lower part of the display, dots on the screen, and .kml pins change based on
the measured values.
Green : Measurement > Good
Yellow : Poor < Measurement ≤ Good
Red : Measurement ≤ Poor
Back: Returns to the “Coverage Mapping Menu” on page 6-15 .
Figure 6-16. Coverage Mapping ACPR Menu
Back
ACPR
Main Ch BW
10.350 MHz
Adj Ch BW
10.350 MHz
Ch Spacing
10.350 MHz
Adjacent Ch
dB Offset
0.0 dB
Good
-40.0 dBm
Poor
-100.0 dBm
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