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Anritsu Economy Microwave Spectrum Analyzers Now Measure TD-SCDMA Signals

MS271xB Family Expands Measurement Capability; Ensures Highly Accurate RF and Modulation Measurements with Best-in-Class Phase Noise and Dynamic Range


Anritsu Company introduces new options for its MS271xB family of economy microwave spectrum analyzers that create a cost-efficient method to quickly and precisely measure the performance of TD-SCDMA components. The TD-SCDMA measurement capability is part of a series of enhancements made to the MS271xB family, which is designed to increase wireless component production yields and lower the cost-of-test.

The new RF measurement option includes a suite of measurements to quickly and accurately measure TD-SCDMA signals. A Channel Spectrum view displays the signals of a selected channel, channel power in dBm or watts, and occupied bandwidth. The left and right channel powers and occupied bandwidth are displayed as well. The option also includes a power vs. time screen that displays the power over one signal frame or can zoom into a slot selected by the user. When in the frame view, individual slot powers are also displayed.

Modulation quality of TD-SCDMA transmitters can now also be evaluated with the MS271xB. When integrated with the TD-SCDMA demodulator option, the MS271xB can display the power of the 16 codes of a demodulated TD-SCDMA signal. Code Domain Power and Code Domain Error of the codes are displayed as a bar graph on the MS271xB’s screen.

Phase Noise Measurement Software
Measurement accuracy is assured because the MS271xB has best-in-class 100 dB dynamic range and phase noise of -110 dBc/Hz at 10 kHz offset (typical, 800 MHz). A new software package takes advantage of the phase noise specification and is an excellent tool to ensure the performance of wireless broadband components and devices.

The software, which runs on an external PC, controls any of the economy microwave spectrum analyzers via an Ethernet or GPIB interface and combines multiple swept measurements into summary displays of phase noise performance. It provides multiple phase noise trace plots on the same scale, in different colors. Phase noise plots can be smoothed and compared with user-created limit lines. The software also allows source jitter measurements to be displayed in seconds, degrees, or Hz. The method in which the data is collected and displayed by the software makes it easier for wireless broadband designers and troubleshooters to predict system EVM and BER.

Anritsu has also enhanced the MS271xB series with a GPIB interface so the economy microwave spectrum analyzers can be easily integrated into legacy manufacturing test systems.

Economy Microwave Spectrum Analyzers
Covering the 9 kHz to 7.1, 13 and 20 GHz ranges, the MS271xB family meets most RF and microwave spectrum analyzer requirements. The excellent phase noise performance allows the spectrum analyzers to measure most wireless local oscillators and synthesizers, while their superior dynamic range results in fast and precise testing of wireless components that require exceptional linearity. Designed with a 10 MHz demodulation bandwidth, the MS271xB family supports GSM, CDMA, W-CDMA, W-CDMA/HSDPA, EVDO and WiMAX measurements, in addition to TD-SCDMA.

About Anritsu
Anritsu Company ( is the American subsidiary of Anritsu Corporation, a global provider of innovative communications test and measurement solutions for more than 110 years. Anritsu provides solutions for existing and next-generation wired and wireless communication systems and operators. Anritsu products include wireless, optical, microwave/RF, and digital instruments as well as operations support systems for R&D, manufacturing, installation, and maintenance. Anritsu also provides precision microwave/RF components, optical devices, and high-speed electrical devices for communication products and systems. With offices throughout the world, Anritsu sells in over 90 countries with approximately 4,000 employees.

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Client Contact:
Katherine Van Diepen
Director, Marketing Communications
Anritsu Company
408.778.2000 ext. 1550
Agency Contact:
Patrick Brightman