Analyzer of Land Mobile Radio systems up to 6 GHz Anritsu LMR Master S412E

Short description

Anritsu LMR Master S412E is a compact multifunctional device that allows you to effectively maintain public safety systems, as well as business and personal mobile communication systems. Anritsu S412E is a professional, truly portable solution for analyzing the quality of all network infrastructure components of P25/P25p2, TETRA, NXDN, dPMR, DMR, PTC and LTE (FirstNet) standards, as well as creating coverage maps of these networks.

Land mobile radio technicians and engineers can use the Anritsu LMR Master to accurately and quickly test and evaluate the installation and start-up of base stations, mobile and portable devices. The LMR Master is equally well-suited for maintenance and troubleshooting, helping to keep your professional mobile radio infrastructure running smoothly. You can download a full description of all the characteristics of Anritsu S412E below on this page in the Documentation section.

Main features

Frequency: 9 kHz - 1.6 GHz. Range extension option up to 6 GHz.
Resolution (RBW): 10 Hz - 3 MHz. Amplitude: +26 dBm to -157 dBm.
Built-in preamp over the entire frequency range.
Built-in vector analyzer 500 kHz - 1.6 GHz with extension up to 6 GHz.
Built-in oscillator 500 kHz - 1.6 GHz with amplitude from 0 to -130 dBm.
Built-in narrowband FM analyzer and power meter 10 MHz - 1.6 GHz.
Special measurements (optional): P25/P25p2, TETRA, NXDN, dPMR, DMR, PTC and LTE (FirstNet).
21.3 cm touchscreen (800 x 600 resolution). User interface: in Russian.
Operating time from the built-in accumulator: 3.6 hours. Interfaces: USB, Ethernet.
Weight: 3.6 kg. Dimensions: 273 x 199 x 91 mm. Working temperature: from -10°С to +55°С.

The Anritsu LMR Master S412E analyzer is a rugged, highly integrated, portable instrument that delivers measurements with unprecedented accuracy over a wide frequency and power range. The Anritsu S412E analyzer reduces the number of different instruments needed to check the health of equipment and diagnose equipment problems.

In addition, Anritsu manufactures several series of handheld spectrum analyzers, antenna analyzers, mobile base station analyzers and vector network analyzers.

Looking for portable spectrum analyzers up to 6 GHz? See Anritsu MS2712E and MS2713E devices.
Need portable spectrum and antenna analyzers up to 6 GHz? See Anritsu S3xxE series.
Need base station portable analyzers? See Anritsu MT821xE series.
Need handheld vector network analyzers? See Anritsu MS20xxB series.
Want to see the full list? This page has everything to choose from spectrum analyzers.

TETRA signal analyzer

TETRA is a pan-European open digital trunked radio standard adopted in 1995. The abbreviation TETRA stands for Trans-Eupopean Trunked RAdio or TErresstrial Trunked RAdio. Due to the wide possibilities of organizing professional mobile radio communications, the TETRA standard is currently widely used not only in Europe, but also in other countries, including the CIS.

Option 0581 is required for the Anritsu S412E to perform demodulation and comprehensive TETRA analysis. Due to the high sensitivity of the receiver, the TETRA analyzer is able to measure even in areas with a weak signal. To check the actual transmitter coverage and signal quality, radio engineers can take measurements with the antenna without shutting down the cell. In case of doubtful results in wireless mode, a specialist can directly connect to the base station to more accurately check the signal quality and transmitter power.

The TETRA network summary screen received on the control channel of the base station contains information about the base station and mobile device coding, network code, and location code. The screen also displays information about the error vector modulus (EVM), the maximum transmit power of the mobile station in the direction determined by the base station. Examining these metrics can help determine the causes of problems reported by users. For example, this screenshot shows the screen of the Anritsu LMR Master S412E instrument in TETRA signal analysis mode.

APCO P25 FDMA and P25 Phase 2 TDMA signal analyzer

APCO P25 is an American open standard for digital trunked radio communications, adopted like the TETRA standard in 1995. Currently, the P25 standards group is divided into two phases: Phase 1 and Phase 2. In addition to supporting the basic capabilities of today's digital professional communications systems, the APCO P25 standard provides compatibility with legacy analog FM radios. As well as TETRA standard equipment, P25 equipment is used all over the world, including in the CIS.

In order for the Anritsu S412E to perform demodulation and comprehensive analysis of P25 signals, option 0521 is required. When available, the Anritsu S412E analyzer allows measurement of P25 radio signals both from the air and by connecting to cell equipment through an attenuator. Separate demodulators are available for C4FM (Phase 1 P25 systems) and DQPSK (LSM and Phase 2 P25 systems).

The S412E has a signal generator that offers several P25 test patterns, including standard 1011 Hz, 1031 Hz, voice BER pattern, and O.153 PN9 BER pattern. The power level of the built-in oscillator can be set from 0 to -130 dBm to support receiver sensitivity measurements. With the help of an external amplifier, the 0 dBm generator signal level can be amplified to higher levels for use as a temporary BER test transmitter for coverage area estimation.

The summary screen contains all the necessary information about the quality of the P25 signal, including the constellation line diagram, spectrum shape, eye diagram, and a summary table with the main signal characteristics. For example, this screenshot shows the screen of the Anritsu LMR Master S412E in P25 signal analysis mode.

Other standards: NXDN, dPMR, DMR2, PTC, LTE (FirstNet) and WiMAX

The Anritsu LMR Master S412E analyzer is designed as a versatile, highly integrated solution to serve the major types of professional radio systems that exist around the world. Therefore, in addition to the widely used TETRA and P25, the Anritsu S412E analyzer supports demodulation and quality analysis of such signals: NXDN, dPMR, DMR2, PTC, LTE (FirstNet) and WiMAX. For some of these standards, it is possible to generate test signals using the generator built into the device.

To activate the test capabilities of the listed standards, you must have the appropriate software options. See the list of options below on this page in the section Options and accessories.

Narrow Band Frequency Modulation (NBFM) analyzer

Narrowband FM analyzer included in the basic package of all LMR Master devices and is designed to analyze the functioning of both receivers and transmitters in accordance with the TIA-603-D standard.

The AutoScan feature is used to identify (and automatically tune to) the center frequency of an unknown transmitter. After locking the center frequency, a summary screen displays information about the received signal strength, frequency error, deviation, modulation frequency, occupied bandwidth, and total harmonic distortion. Standard values for CTCSS, DCS (normal and inverted) and DTMF are also decoded and written. To tune the receiver, there are modes of noise suppression by 20 dB (20 dB Quieting) and measurements of the ratio of signal to noise and distortion (SINAD). The unit can be set to dBm, Volts or Watts depending on the needs of the user.

Filters (high-pass, low-pass, pre-distortion, and pre-distortion) let you select audio bandwidth components for precise measurements. The built-in oscillator in the S412E analyzer is capable of providing a full range of signals from pure unmodulated to modulated FM with test tone and tamper protection at variable deviation values. As an example, this screenshot shows the screen of the Anritsu LMR Master S412E in Narrowband Frequency Modulation (NBFM) analysis mode.

Mapping coverage areas

A separate type of work that can be carried out using the Anritsu LMR Master is the measurement of the main signal parameters plotting them on a map. To activate this feature, the device must have a GPS receiver (option 0031) and one of the options: 0522 (for P25/P25p2), 0532 (for NXDN), 0582 (for TETRA), 0592 (for DMR2), 0722 (for PTC ) or option 0431 for the basic parameters of any radio signals.

When the operator moves with the device over the area, the measurement results are automatically stored in the device's memory after a specified distance or after a specified time. For analog signals, the following can be measured and stored: RSSI, THD and SINAD. For digital you can measure and save: RSSI, BER, Mod Fid and EVM. There are various options for loading maps into the device, ranging from a Google Earth or KML file to a regular photograph of the area or a scan of a paper map. The signal strength color markers applied to the map have five user-configurable thresholds and five corresponding colors.

This screenshot shows the screen of the Anritsu LMR Master S412E instrument in the mode of mapping color markers of the RSSI signal level. Thresholds are user-configured such that a signal with a power greater than -100 dBm is considered acceptable.

Design

The Anritsu LMR Master S412E analyzer is made in a very convenient compact case, which is equally well suited for both field work and laboratory conditions. The analyzer is equipped with a large touch screen with a good margin of brightness, which allows you to work even in direct sunlight. Built-in battery provides 3-4 hours of intensive battery life. In the standard delivery set there is a charger from the car cigarette lighter. And the range of operating temperatures in which the measurement accuracy is guaranteed is from -10°С to +55°С.

All connectors and communication sockets of the Anritsu S412E analyzer are located on one, upper side of the device, which is very convenient when working in the field. The purpose of the individual inputs and outputs is shown in this photo. Of the main elements, it is worth highlighting four RF connectors: the input of the spectrum analyzer (RF input), the output of the built-in signal generator and two connectors of the vector electrical circuit analyzer (VNA 1 port and VNA 2 port).

Specifications

This figure lists the main technical specifications of the Anritsu S412E analyzers. Detailed specifications span 37 pages in a PDF file and can be found below on this page in the section Documentation.

Anritsu LMR Master S412E analyzer delivery set

Options and accessories for Anritsu LMR Master S412E portable analyzer

Below is a list of the main options for the Anritsu S412E analyzers. For a complete list of options and additional accessories with a detailed description, see this page in the section Documentation.

In addition to the software and hardware options listed above, the Anritsu S412E analyzer can be equipped with RF cables, adapters, attenuators and antennas. You can choose all this equipment from the following sections of our website: Measuring antennas and microwave accessories.