Agilent Technologies 89410A User Manual

To display CCDF
This procedure shows you how to display the Complementary Cumulative
Density Function (CCDF). The procedure uses the analyzer’s source to
generate random noise and to display the CCDF of the random noise.
1. Preset the analyzer.
Press [
Instrument Mode
], [
receiver
], then press:
89410A: [
input section (0-10 MHz)
].
89441A: [
RF section (0-10 MHz)
].
Press [
Preset
].
2. Select the Vector instrument mode.
Press [
Instrument Mode][Vector].
3. Connect the analyzer’s source to the channel 1 input.
4. Set the source level to 0 dBm, select random noise, and activate the source.
Press [
Source], [level] 0 dBm.
Press [
source type], [random noise], [return]
Select [
source on].
5. Set the range to 10 dBm.
Press [
Range] 10 dBm.
6. Enable time-domain corrections.
Press [
System Utility], [time domain cal on].
7. Set the frequency span to 5 MHz to band-limit the random noise signal (this
turns on the analyzer’s LO and zooms the time data).
Press [Frequency], [span], 5 MHz.
8. Display the CCDF trace.
Press [
Measurement Data], [more choices], [CCDF ch1].
CCDF (complementary cumulative density function) is a statistical
power-measurement that is the complement of CDF, as follows:
CDF: Probability (P
inst
≤ P
average
)
CCDF: Probability (P
inst
≥ P
average
)
where:
P
inst
= Instantaneous power
P
average
= Average power
Making Statistical Power Measurements
5 - 2

Agilent Technologies 89410A Specifications

General

Brand	Agilent Technologies
Model	89410A
Category	Measuring Instruments
Language	English