Anritsu EMF radiation measurement system

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Anritsu has introduced an electromagnetic field (EMF) radiation measurement system for its Spectrum Master MS271xE handheld spectrum analysers and Cell Master MT8212E/MT8213E base station analysers. With the option installed and an Anritsu isotopic antenna attached, the analysers can be used to measure electromagnetic fields, ensuring wireless networks are in compliance with various national standards for personal safety.

The required Anritsu isotropic antenna, which operates over a frequency range of 0.7 to 6 GHz, is a tri-axis E-Field sensor with an integrated RF switch device, microcontroller and memory. Each of the three sensors is situated orthogonally inside the antenna housing to transmit/receive a spherical radiation pattern. In this way, all radiation within the antenna’s geographical position is measured by the Spectrum Master and Cell Master analysers, regardless of direction.

For wideband radiation measurements, the EMF option operates in spectrum analyser mode. Total radiation from all sources can be measured over the frequency band desired. The EMF option will also conduct radiation measurements of demodulated signals in specific frequency bands, including LTE, TD-LTE and W-CDMA. Measurements can be extrapolated assuming a fully loaded traffic channel to present a worst-case analysis.

Limit lines can be set by the user at various levels across the desired spectrum and saved for recall at a later time. Pass/fail indicators are displayed on the screen so users can have immediate feedback of test results. Results are automatically saved to an internal memory.