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If Lower Peak or Upper Peak indicates Fail, the mask line becomes red.
Adjacent channel power (ACP)
The Adjacent Channel Power (ACP) is the power contained in a specified frequency
channel bandwidth relative to the total carrier power. it may also be expressed as a ratio
of power spectral densities between the carrier and the specified offset frequency band.
The ACP measures the power of a carrier channel and the power in its adjacent (offset)
channels. The measurement results allow you to determine whether the carrier power
is set correctly and whether the transmitter filter is working properly. You can measure
the channel power in from one to five adjacent (offset) channels on the lower frequency
band.
Setting measure setup
After configuring spectrum measurement in
page
9, you can set the measure setup to continue your measurement. the measure-
ment settings can be saved and recalled as a file by selecting File Type as Setup and
load the file onto the instrument using the Save/Load icons on the side bar.
To set measure setup
1
Tap the Setup (
2
Tap Main Channel BW to set the main channel bandwidth and input the value
using the on-screen keyboard.
You can also tap the rectangle with value under the chart screen and input the
value using the on-screen keyboard.
3
Tap Configuration to configure an offset, up to five. The table appears as shown in
Figure
April 2021
NOTE
If the Trace View is set to Off, the Reference Power, Lower Peak, and Upper
Peak is not shown. If the Trace View is set to On and the Trace Type is
selected other that Clear Write, the Reference Power, Lower Peak, and Upper
Peak is shown with value and "*" at the end of the value.
) icon on the side bar.
10.
SPA06MA-O User's Guide
"Configuring spectrum measurements" on
22145360, R005
Chapter 2 Using Spectrum Analyzer
Conducting RF measurements
Page 27
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