Handheld analyser adds DMR test and WiMAX fixed and mobile capabilities

May 23, 2011 // By Jean-Pierre Joosting
Anritsu Company has introduced three Anritsu options for its LMR Master™ S412E handheld analyzer. With the addition of fixed WiMAX and mobile WiMAX capabilities, the analyser continues to address market needs, as WiMAX is expected to be used as a backhaul technology for distributed land mobile radio networks.

The WiMAX test capability provides field engineers, technicians and contractors responsible for public safety networks with an easy and highly accurate method for conducting RF, demodulation, and over-the-air (OTA) measurements on WiMAX signals. The WiMAX RF Measurements option can be used to measure the transmitted signal strength and signal shape of a transmitter. When configured with the RF Measurement option, the LMR Master S412E can conduct Channel Spectrum, Power versus Time (with 5 ms and 10 ms frame lengths), and ACPR measurements. RF summary screens can also be displayed with the option.

Engineers, technicians, and contractors can use the WiMAX Demodulation option to analyze OFDMA signals and display detailed measurements, for evaluating transmitter modulation performance. The measurement screens that can be displayed are constellation (QPSK, 16 QAM, 64 QAM), spectral flatness, EVM versus subcarrier, EVM versus symbol, DL MAP with automatic decoding, and modulation summary.

For both fixed and mobile WiMAX signals, Anritsu offers the OTA measurement option. With these options installed in the LMR Master S412E, users can make OTA measurements to spot-check a transmitter’s coverage and signal quality without taking the site off-line.

Anritsu Company has also introduced two options that allow the LMR Master™ S412E to conduct digital modulation analysis and generation, and coverage mapping based on the ETSI Digital Mobile Radio (DMR) Tier 2 protocol. The expanded testing capabilities provide engineers, technicians, and contractors responsible with the deployment, installation and maintenance of DMR radio systems – including MotoTRBO™ systems – with a single, lightweight, durable test solution that meets their ever-evolving testing requirements.

The modulation analysis option enables the analyser to conduct highly accurate measurements on the transmission characteristics of DMR networks. The LMR Master S412E is the first instrument in its category to be able to test emerging narrowband signals, such as DMR, as well as broadband digital public safety systems. With the option, the analyzer can also generate DMR signals, due to the vector