Leaet
Easy Noise Analysis with Record and Replay
Signal Analyzer Capture Function Records Noise
● Save frequency span × Capture time as data le in memory
● Re-sample saved data and output as le to internal or external hard disk
● Recall data saved in internal or external hard disk and analyze as many times as necessary
● Perform multi-domain analysis, such as frequency axis, time axis, spectrogram, etc.
Mobile phones, PCs, Game machines, Home electronics, etc., are a key part of all our lives but sometimes their correct operation
is impaired by unwanted interference or “Noise” from other nearby machines; Noise evaluation to prevent mis-operation is a
key measurement. However, capturing all noise from every source such as electric motors and other environmental factors is
extremely difcult in terms of costs, labor and time. In addition, it is hard to generate stable noise for test capture.
The MS269xA solves these problems at a stroke by capturing the noise and then using the built-in vector signal generator to
replay it to accurately simulate the actual noise environment in the test laboratory.
Frequency Span Sampling Rate Max. Capture Time Max. No. of Sample
1 kHz 2 kHz 2000 s 4 M
2.5 kHz 5 kHz 2000 s 10 M
5 kHz 10 kHz 2000 s 20 M
10 kHz 20 kHz 2000 s 40 M
25 kHz 50 kHz 2000 s 100 M
50 kHz 100 kHz 1000 s 100 M
100 kHz 200 kHz 500 s 100 M
250 kHz 500 kHz 200 s 100 M
500 kHz 1 MHz 100 s 100 M
1 MHz 2 MHz 50 s 100 M
2.5 MHz 5 MHz 20 s 100 M
5 MHz 10 MHz 10 s 100 M
10 MHz 20 MHz 5 s 100 M
25 MHz 50 MHz 2 s 100 M
31.25 MHz 50 MHz 2 s 100 M
50 MHz
∗
100 MHz 500 ms 50 M
62.5 MHz
∗
100 MHz 500 ms 50 M
100 MHz
∗
200 MHz 500 ms 100 M
125 MHz
∗
200 MHz 500 ms 100 M
∗
: Requires MS269xA-077/078
• Center Frequency
50 Hz to 6 GHz (MS2690A)
50 Hz to 13.5 GHz (MS2691A)
50 Hz to 26.5 GHz (MS2692A)
• Frequency Span
1 kHz to 31.25 MHz (Standard)
1 kHz to 62.5 MHz (Opt.077)
1 kHz to 125 MHz (Opt.077+078)
• Sampling Rate
2 kHz to 50 MHz (Standard)
2 kHz to 100 MHz (Opt.077)
2 kHz to 200 MHz (Opt.077+078)
(It is an automatic setting according to the frequency span.)
• Attenuator: 0 to 60 dB
• Trigger: Video, Wide IF Video, External, SG Marker
When capturing noise, sometimes it is not possible to capture very small level uctuations with a resolution of 20 ns
(Sampling rate: 50 MHz), depending on the noise components. In this case, using smaller resolution of 5 ns (Sampling rate:
200 MHz) can capture signals closer to the true noise.
It is possible to recreate mis-operation phenomena by capturing noise generated from actual equipment such as electrical
motors at a resolution of 5 ns and reproducing it with the vector signal generator.
Need for Opt.077/078 Analysis Bandwidth Extension
High resolution captures ne noise
200 MHz max. sampling rate =
5 ns resolution
+ MS2690A/91A/92A-020 Vector Signal Generator (option)
MS2690A/91A/92A Signal Analyzer
MS269xA_Noise_Analysis-E-A-2-(1.01) 18/JAN/2012 ddch/CDT
Isolate and Save Only Noise Components in Captured Data
● Save only the required parts of the captured data to hard disk
FULL: All captured data for entire time
Analysis Time: Set analysis time (blue part in screen)
Manual: Any setting during captured time
Filter out unwanted parts
Replay Captured Noise from Vector Signal Generator
● Vector Signal Generator generates waveform pattern with built-in PC based
on data captured by Signal Analyzer
● Outputs generated waveform at arbitrary level and frequency → Replay noise
MS269xA-020 Vector Signal Generator
•
Frequency Range: 125 MHz to 6 GHz
•
Output Level: –140 to 0 dBm
•
Baseband Generator Clock: 20 kHz to 160 MHz
•
Arbitrary Waveform Memory: 1 GB
■
High Resolution
Installing the Opt.077/078 Analysis Bandwidth Extension supports noise capture at sampling rates up to 200 MHz with 5 ns resolution.
■
Isolating Noise
After capturing the signal for the maximum time, data for just the required part with the noise can be saved to disk, greatly
reducing the le size and saving disk space. Additionally, processing speed is increased when generating the vector signal
generator noise waveform pattern with the PC.
■
All-in-one
Conventionally, a pre-amp, signal analyzer, and PC (for generating waveform pattern) are required to capture and replay
noise. The all-in-one MS269xA has all these functions built-in to eliminate complex setup work and improve efciency.
Advantages of MS269xA Signal Analyzer
Ordering Information
Category Model Name
Main frame
MS2690A Signal Analyzer (50 Hz to 6 GHz)
MandatoryMS2691A Signal Analyzer (50 Hz to 13.5 GHz)
MS2692A Signal Analyzer (50 Hz to 26.5 GHz)
Hardware options
MS269xA-008 6 GHz Preamplifier
MS269xA-020 Vector Signal Generator (125 kHz to 6 GHz) Mandatory
MS269xA-050 HDD Digitizing Interface (4 hours of continuous capture max.)
MS269xA-078
(Requires MS269xA-077)
Analysis Bandwidth Extension to 125 MHz
(Sampling rate: 200 MHz max., ADC resolution: 14 bits)
Recommended