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Chapter 4 99
Making Measurements
Making the Spectrum (Frequency Domain) Measurement
Changing the Measurement Setup
The following table shows the factory default settings for spectrum
(frequency domain) measurements.
Table 4-1 Spectrum (Frequency Domain) Measurement Defaults
Measurement Parameter Factory Default Condition
View/Trace Spectrum
Trace Display All
Res BW 20.0000 kHz; Auto
Averaging:
Avg Number
Avg Mode
Avg Type
25; On
Exp
Log-Pwr Avg (Video)
Trig Source Free Run (Immediate)
Spectrum View:
SPAN
AMPLITUDE Y Scale - Scale/Div
1.00000 MHz
10.00 dB
Spectrum Linear View:
SPAN
AMPLITUDE Y Scale - Scale/Div
1.00000 MHz
100.0 mV
I and Q Waveform View:
Capture Time
AMPLITUDE Y Scale - Scale/Div
188.00
µs
100.0 mV
I/Q Polar View:
I/Q Scale/Div
I or Q Origin
100.0 mV
0.00 V
Advanced
Pre-ADC BPF On
Pre-FFT Filter Flat
Pre-FFT BW 1.55000 MHz; Auto
FFT Window Flat Top (High AmptdAcc)
FFT Size:
Length Control
Min Points/RBW
Window Length
FFT Length
Auto
3.100000
706
1024
ADC Range Auto Peak
Data Packing Auto
ADC Dither Auto