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Signal Analyzers MS2691A

Signal Analyzers

This product has been discontinued Replacement Model(s) : MS2830A , MS2830A Microwave , MS2840A , MS2850A

Signal Analysis will never be the same again

MS269xA Series Signal Analyzers are the latest high performance signal analyzers for next-generation communication applications. The MS269xA Series Signal Analyzer base units include swept spectrum analysis, FFT signal analysis, and a precision digitizer function. Add options to incorporate a Signal Generator, to turn the instrument into a hassle free, plug and play, one box solution.

The MS269xA Series Signal Analyzers support a standard analysis bandwidth of 31.25 MHz that can be extended to 62.5 MHz/125 MHz with optional hardware. Using a patented calibration process, the multipoint amplitude calibration and the phase calibration result in a level accuracy of ±0.5 dB across a 6 GHz span. No other analyzer on the market can meet that specification. These boxes are superlative in every way -- they measure the widest signals and using the latest technology, make measurements faster than ever before. The modular architecture ensures a box that grows as measurement requirements change.

A series of options enables standards-based modulation analysis, vector signal generation, BER measurement and Noise Figure measurement. The end-user can configure a one-box solution that dramatically reduces cost, footprint, and Total Average Cycle Time (TACT) for device evaluation.

The MS269xA Series are accurate enough for the most demanding R&D environment, yet are fast enough for the factory floor! Currently supported applications include GSM, GPRS, EDGE, W-CDMA, and WLAN IEEE 802.11a/b/g/j/n/p/ac, etc. , LTE/LTE-Advanced (FDD/TDD), 5G.

The wideband FFT signal analyzer (analysis bandwidth of 31.25 MHz with option for 62.5 MHz/125 MHz) supports high-speed continuous measurements including CCDF, frequency vs. time, spectrum, and power vs. time analysis. The standard digitizing function can capture waveforms and immediately play them out using the optional Signal Generator. An extended digitizer option adds the ability to capture signals up to 20 MHz wide for up to 4 hours.

  • Frequency Range: 50 Hz to 13.5 GHz
  • Analysis Bandwidth
    • 31.25 MHz (standard)
    • 62.5 MHz / 125 MHz (option)
  • Supports 5G NR (sub-6 GHz) TDD/FDD
    Wide measurement dynamic range EVM performance: <0.5%
    One-button dynamic-range optimization at EVM measurement
  • Offers modulation analysis, such as LTE/LTE-Advanced (FDD/TDD), WLAN IEEE 802.11ac etc. (with optional software)
  • One-Box Tester with the addition of the Signal Generator option
  • Batch Capture Measurements for the fastest analysis time
  • Supports Noise Figure measurement (option)
  • BTS and UE transmitter testing
  • Receiver testing with the Signal Generator option
  • High-performance for R&D
  • High-speed for manufacturing
  • General Purpose analysis for modulation R&D
  • 5G NR (sub-6 GHz)
  • LTE/LTE-Advanced (FDD/TDD), EDGE Evolution, and HSPA Evolution
  • WLAN testing including IEEE802.11a/b/g/j/n/p/ac
  • Power amplifier testing
  • Satellite Communications
  • Physical layer Testing for all 3GPP technologies


Communication system Applicable software
 Basic Digital Signal Analysis  Vector Modulation Analysis Software
 5G NR (TDD)  (UPDATED)  5G NR TDD sub-6GHz Downlink Measurement Software
 5G NR TDD sub-6GHz Uplink Measurement Software
 LTE/LTE-Advanced (FDD)  LTE Downlink Measurement Software
 LTE-Advanced FDD Downlink Measurement Software
 LTE Uplink Measurement Software
 LTE-Advanced FDD Uplink Measurement Software
 LTE IQproducer
 LTE-Advanced FDD Option
 LTE/LTE-Advanced (TDD)  LTE TDD Downlink Measurement Software
 LTE-Advanced TDD Downlink Measurement Software
 LTE TDD Uplink Measurement Software
 LTE-Advanced TDD Uplink Measurement Software
 LTE TDD IQproducer
 LTE-Advanced TDD Option
 GSM/EDGE Measurement Software
 EDGE Evolution Measurement Software
 W-CDMA/HSPA Downlink Measurement Software
 W-CDMA/HSPA Uplink Measurement Software
 W-CDMA BTS  W-CDMA BS Measurement Software
 CDMA2000/1xEV-DO  EV-DO Forward Link Measurement Software
 All Measure Function
 CDMA2000 Forward Link Measurement Software
 All Measure Function
 TD-SCDMA  TD-SCDMA Measurement Software
 WLAN  WLAN (802.11) Measurement Software
 802.11ac (160 MHz) Measurement Software
 WLAN IQproducer
 802.11ac (80 MHz) Option
 TDMA type (PHS, ETC/DSRC, Digital LMR etc.)  TDMA IQproducer
 ETC/DSRC  ETC/DSRC Measurement Software
 Composite Waveforms for Signal Generator Option  Multi-Carrier IQproducer

Hardware Options Remarks
 Rubidium Reference Oscillator  Aging rate ±1 × 10-10/month
 Wideband Analysis Hardware  Extends the Analysis Bandwidth to 125 MHz
 Analysis Bandwidth Extension  Extends the Analysis Bandwidth to 62.5 MHz / 125 MHz
 6 GHz Preamplifier  100 kHz to 6 GHz
 Vector Signal Generator  125 MHz to 6 GHz
 Extension of Preselector Lower Limit to 3 GHz  Extends lower limit of pre-selector to 3 GHz
 Noise Figure Measurement Function  Y-factor method using a Noise Source

High Speed Msmt

Discover... Anritsu - Get the right tool for the job

Ultra-High Speed ACLR Measurement

Averaging is a common technique for obtaining stable measurement results when measuring adjacent channel leakage power ratio (ACLR) and occupied bandwidth (OBW) using a spectrum analyzer. The MS269xA Signal Analyzer supports these measurements at high speed by using a capture function.

Capture Function Requires No Averaging!

[Ex.1] - Measurement using conventional spectrum analyzer The spectrum analyzer requires more time to measure because it must sweep for the number of averaging times.
[Ex.2] - Measurement using signal analyzer

The signal analyzer performs high-speed measurement even at the same number of averaging times by capturing the entire in-band data at one time. (8x high speed).
[Ex.3] - Batch capture measurement using signal analyzer
The signal analyzer performs ultra-high-speed measurement by capturing data once for the measurement time equivalent to the averaging times, eliminating the need for averaging. (65x ultra-high-speed)

* The above measurement time is calculated from the time required for 100 measurements.

Measurement Image

The measurement principle is shown in the image below.

The signal analyzer function cuts the measurement time from 2.6s to 0.04s (65x faster) compared to using a conventional spectrum analyzer.

When the Spectrum Analyzer (Ex. 1) sweep time is 95 µs and number of display points is 1001, the time per display point is about 95 µs. To obtain about the same accuracy for one measurement with the Spectrum Analyzer at the Signal Analyzer (Ex. 2), set Analysis Length to 95 µs. Additionally, set Analysis Length to 1900 µs (95 µs x 20 times) to obtain the accuracy for 20 measurement using the Spectrum Analyzer as shown in Ex. 3.

Advantage of Ultra-High-Speed ACLR Measurement

Amplifier adjustment is laborious work (adjustment ‹ › confirmation) requiring confirmation of various performance items, such as the distortion compensation circuit, current adjustment, and frequency characteristics. As a result, careful ACLR adjustment requires a lot of time.

In particular, amplifiers for high-performance base stations require several performance adjustments. Using the MS269xA cuts the work time by a factor of 10.

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