Product category: Stand-Alone Instruments
News Release from: Anritsu (UK) | Subject: MT8820A
Edited by the Electronicstalk Editorial Team on 01 July 2002
GSM analyser gains speed and voice
capabilities
Anritsu has introduced two new options for its MT8820A radiocommunications analyser.
Anritsu has introduced two new options for its MT8820A radiocommunications analyser to offer high-speed measurement of transmission and reception parameters of GSM mobile terminals and evaluation of speech on W-CDMA user equipment (UE) and GSM mobile terminals As the majority of 3G terminals will require GSM capability, the addition of a TDMA capability with GSM protocols and parameters is essential for comprehensive testing
This article was originally published on Electronicstalk on 22 Oct 2001 at 8.00am (UK)
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One-box tester handles all W-CDMA test items
The Anritsu MT8820A is a hardware platform with options to allow evaluation of all the main transmission/reception test items for W-CDMA (3GPP) user equipment terminals.
One-box tester does it all for 3GPP
The MT8820A is the first single box tester with comprehensive test capability, which also features call processing conforming to 3GPP standards.
The audio codec is also important during the development phase to avoid some of the pitfalls that occurred in the early days of GSM.
The market demands even higher voice quality, so thorough testing of all codec combinations is essential.
The new MX882001A GSM measurement software covers all major GSM systems, including the new North American channel plans at 850MHz.
Transmission measurements include power, power vs.
time, frequency error, phase error (RMS and peak) and output RF spectrum.
Reception measurements include FER, BER and CRC error rates.
Call processing includes location registration, terminal call origination, network call origination, communication, handover, terminal disconnect and network disconnect, along with a mobile terminal report monitor that displays the down-link RF signal level or quality.
Benchmark tests carried out by Anritsu show the new software to be dramatically quick.
For example the time taken to make transmitter measurements over 20 samples, measuring power, modulation and output spectrum, is less than a quarter of that taken by competing analysers.
This speed is achieved by innovative use of modern parallel processors and measurement algorithms.
The new MX882000A-01 W-CDMA voice codec adds real-time voice encoding and decoding to Anritsu's W-CDMA measurement capability.
When combined with an optional audio board fitted in the MT8820A, it enables users to evaluate speech in both directions by attaching a handset to the MT8820A's RJ-45 connector.
It also allows signals to be introduced from an external audio source and measured by an external analyser to permit measurements of the characteristics of the mobile terminal's microphone and speaker.
Similar capabilities are available for GSM systems through the MX882001A-01 GSM voice codec.
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