Anritsu Company has introduced an NBFM for its LMR Master S412E handheld analyzer that measures narrowband analog FM (NBFM) land mobile radio (LMR) system performance. The LMR Master S412E is a portable solution for LMR network engineers and field technicians to determine system performance.
The LMR Master S412E’s NBFM Mode, now standard on all new instruments, can be retrofitted to existing instruments via a standard no-cost firmware upgrade. Arnitsu states it automatically detects the carrier frequency of an unknown transmitter, tunes to that frequency, and analyzes the transmitter’s deviation, CTCSS/DCS tone, occupied bandwidth and other parameters. With the NBFM Mode, the LMR Master S412E can support analog LMR systems that use either 12.5 kHz channels or 25 kHz channels.
The NBFM Mode expands the capabilities of the LMR Master S412E and supports P25, NXDN, and DMR/MotoTRBO™ systems. A built-in vector network analyzer (VNA) delivers a transmission dynamic range of > 100 dB, so users can view and adjust the RF performance of RF devices including filters, duplexers, transmitter combiners, receiver multi-couplers and tower-mounted amplifiers. VNA measurements are displayed and updated on the LMR Master S412E’s 8.4” high-resolution TFT touch screen with 850 µs/point sweep speed.
It includes a built-in spectrum analyzer with DANL of -152 dBm, dynamic range of > 95 dB (both 10 Hz RBW @ 2.4 GHz) and a third-order intercept of greater than +16 dBm. A low phase-noise reference oscillator (< -110 dBc/Hz typical @ 10 kHz offset) measures NBFM, P25, NXDN, and DMR system performance, including emission masks, bit-error rate (BER), and modulation fidelity or error-vector magnitude (EVM).
The LMR Master S412E’s optional accuracy power meter measures RMS from 50 MHz to 6 GHz using external sensors, including inline sensors capable of handling up to 150 watts.
The LMR Master S412E has a starting price of $13,950.
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