Product category:
Stand-Alone Instruments
News Release from: Anritsu (UK) | Subject: TD-SCDMA handheld test solutions
Edited by the Electronicstalk Editorial
Team on 07 May 2008
Instruments support Chinese TD-SCDMA
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Field engineers, technicians and contractors can accurately, quickly and easily make RF, demodulation and over-the-air (OTA) measurements on TD-SCDMA signals.
Anritsu has released three options that make its BTS Master and Spectrum Master families the first complete handheld test solutions for deploying, installing and maintaining TD-SCDMA networks now being deployed in China With the options, field engineers, technicians and contractors can accurately, quickly and easily make RF, demodulation and over-the-air (OTA) measurements on TD-SCDMA signals
This article was originally published on Electronicstalk on 4 Aug 2008 at 8.00am (UK)
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The TD-SCDMA RF Measurement option offers a suite of test tools, including channel spectrum and power versus time.
The channel spectrum view shows the shape of the transmitter and displays the signal's channel power and occupied bandwidth.
In addition, it displays the channel power and occupied bandwidth of the left and right channels.
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A power versus time view displays the power over one frame of the signal, or can zoom into a slot selected by the user.
In the frame view, individual slot powers are also displayed.
Numerical results displayed include channel power, UpPTS (Uplink) power, DwPTS (Downlink) power, on/off ratio, slot peak-to-average ratio and the downlink - uplink power.
TD-SCDMA demodulation measurements are used to measure the modulation performance of the selected Node B transmitter's signal.
With the demodulation measurement option, the BTS Master and Spectrum Master can display code domain power (CDP) data screen and demod summary screens.
The CDP data screen displays the power of the 16 codes of a demodulated TD-SCDMA signal.
The code domain power and code domain error of the codes are displayed as a bar graph.
Other measurement results include slot power; frequency error in Hz, EVM and Peak EVM; DwPTS power; Tau; noise floor; carrier feed through; and peak code domain error.
OTA measurements provide an easy way to monitor all 32 user codes outside a base station.
Spectrum Master displays the codes in two convenient formats sorted by codes or by Tau, indicating distance from a base station.
Code scan view displays all 32 codes in a bar graph with their individual Ec/Io and Tau.
The code scan view also displays the DwPTS power and the pilot dominance.
The Tau scan displays the code power in the Y axis and the Tau in the X axis.
In addition, a table below the graph displays six of the strongest codes sorted by power.
A convenient record feature where measurement data can be logged automatically along with GPS information is also available with the option.
All three options can be used with the MT8222A BTS Master and the Spectrum Master MS2721B, MS2723B and MS2724B analysers.
Weighing less than 4kg, the MT8222A is the smallest, lightest and most economical handheld solution for complete 2G/3G/4G base station testing.
The MS2721B, MS2723B and MS2724B are the most advanced ultra-portable 7.1, 13 and 20GHz spectrum analysers on the market.
Their broad frequency coverage and high sensitivity, coupled with a wide selection of resolution bandwidths, make the MS272xB series well suited for the most challenging field environments.
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