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Handheld Node B analyser

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article image Functions as a spectrum analyser with continuous frequency coverage up to 7.1GHz.

ANRITSU has introduced the MT8220A UMTS Master, a handheld Node B analyser that brings the size, performance and cost advantages of Anritsu's Spectrum Master to 3G/UMTS applications.

Covering the UMTS ranges of 824MHz-894MHz and 1710MHz-2170MHz, as well 2300MHz-2700MHz, the MT8220A can conduct both RF and demodulated measurements. It also functions as a spectrum analyser with continuous frequency coverage up to 7.1GHz, with a typical displayed average noise level -153 dBm at 1GHz and built-in smart measurements for easy operation. It is suitable for 3G/UMTS service providers, contractors and installers who deploy, install and maintain UMTS/W-CDMA Node B equipment.

The MT8220A can be used in the field to conduct all the necessary UMTS/W-CDMA RF measurements. A self-calibrating RF front-end and a precision frequency reference ensure that RF measurements are highly accurate. RF measurements that can be made with the MT8220A include adjacent channel leakage power, occupied bandwidth and a spectral emission mask for accurate analysis of a base station's output.

For demodulation measurements the MT8220A has a code domain power display that can display all 512 orthogonal variable spreading factor codes in the UMTS/W-CDMA signal relative to total power or pilot power. There is also a codogram display that identifies code power variations over time and traffic activity over time. The MT8220A measures error vector magnitude with a resolution of 0.1% for accurate determination of a transmitter's modulation quality.

The MT8220A has an over the air (OTA) option that allows technicians to perform measurements while staying in their trucks. The OTA measurement can detect the six strongest scrambling codes and display them in both graphical and table formats.

The MT8220A supports the European ECC (02) 04 recommendation for measuring non-ionising electromagnetic radiation that provides a new concept in EMI testing. Anritsu partnered with Antenessa to develop software that plots data from both GSM channel power and UMTS/W-CDMA power in the common pilot channel measurements for EMI analysis.

Because the MT8220A is built on the Spectrum Master platform it is lightweight and durable. Its 21.5cm, daylight-viewable TFT display makes it easy to see measurement results, regardless of weather conditions. In addition to eight standard languages, two user-defined custom languages can be installed in the MT8220A. For downloading data, the MT8220A features compact flash, USB 2.0 and Ethernet 10/100 interfaces.

The MT8220A is now also supported by Nemo Technologies' Nemo Outdoor drive test tool.

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