Anritsu Company has introduced three options for its LMR Master S412E handheld analyzer. With the addition of fixed WiMAX and mobile WiMAX capabilities, the analyzer 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 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 analyzer 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 signal generator built into the LMR Master S412E. The analyzer is also capable of generating data-modulated signals in other formats, including P25 and NXDN.
Performing DMR coverage measurements are simple and straightforward with the option installed on the LMR Master S412E. The user simply connects a receive antenna and a GPS antenna to the handheld analyzer. The instrument automatically stores results, along with the GPS location. Traces of mapping data are automatically saved, and can be later recalled and viewed from the front panel of the LMR Master S412E.
The LMR Master S412E is the only battery-powered P25 test solution to provide cable and transmission measurements, a high-performance spectrum and interference analyzer, and P25/NXDN/DMR EVM and BER measurements at -115 dBm signal levels. Unlike other portable solutions, the analyzer offers the most extensive P25/NXDN/DMR test capability, including analysis of uplink and downlink control channel traffic and BER/EVM coverage mapping. The first solution that can test emerging 700 MHz narrowband and broadband digital public safety systems, the LMR Master S412E reduces the number of tools field technicians and engineers need, thereby saving time and money while ensuring accuracy.
The analyzer utilizes the field-proven, compact, rugged design of the Anritsu Site Master. A field-friendly battery can be changed in just seconds to extend measurement time. A standard transmissive color display is viewable in direct sunlight and at wide viewing angles.
For further information: http://www.anritsu.com.
This article originally appeared on EE Times Europe.