EMF-capable analysers ensure wireless network safety

Anritsu Corp. has announced that a novel electromagnetic field (EMF) radiation measurement option allows the company's Spectrum Master MS271xE handheld spectrum analysers and Cell Master MT8212E/MT8213E base station analysers to measure electromagnetic fields. Intended for regulatory authorities and cellular operators, this capability aims to ensure the compliance of the wireless networks with safety standards.

The option essentially comprises an isotropic antenna, which operates over a frequency range of 0.7-6GHz, along with a tri-axial E-Field sensor with an integrated RF switch device, MCU 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 also conducts 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.

The analysers offer a range of automated features. Limit lines can be set by the user at various levels across the desired spectrum, and saved for recall at a later time, noted Anritsu. Pass/fail indicators are displayed on the screen so users can have feedback of test results. Additionally, results are automatically saved to an internal memory.

A multifunctional solution, the Spectrum Master eliminates the need for multiple instruments. In addition to conducting EMF measurements, the Spectrum Master can be configured to include a broad range of parameters including a spectrum analyser, an interference analyser with signal mapping, coverage mapping, tracking generator, channel scanner, power meter, high accuracy power meter, AM/FM/PM analyser and GPS receiver.

The Cell Master is a compact handheld base station analyser specifically developed for cell site technicians to meet virtually all of the measurement needs in and around a cell site of 2G, 3G and WiMAX networks. More than 30 analysers are combined in the handheld instrument to meet virtually every measurement need.

- Christoph Hammerschmidt
  EE Times Europe