Node B analyser

Anritsu has introduced the MT8220A UMTS Master, an ultra-portable handheld node B analyser.

Covering the UMTS ranges of 824-894 MHz and 1710-2170 MHz, as well as 2300-2700 MHz, the MT8220A can conduct both RF and demodulated measurements. In addition, it functions as a spectrum analyser with con-tinuous frequency coverage up to 7.1 GHz, with displayed average noise level of typically -153 dBm at 1 GHz and built-in Smart measurements.

The analyser can be used in the field to conduct all necessary UMTS/W-CDMA RF measurements. A self-calibrating RF front-end and a precision frequency reference ensure that RF measurements are 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 EVM (error vector magnitude) with a resolution of 0.1%, for determination of a transmitter's modulation quality.

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

The instrument supports the European ECC (02) 04 recommendation for measuring non-ionising electromagnetic radiation that provides a new concept in EMI testing.