Atec S412D User Manual

Product Brochure
LMR Master™ S412D
Cable, Antenna, Spectrum, Interference, and P25 / iDEN Modulation Analyzer
The LMR Master from Anritsu is a single instrument that combines all of the tools required to install, maintain, and certify Land Mobile Radio systems.
Easy-to-Use
In a single, lightweight, handheld, battery-operated package, the LMR Master combines the functionality of a cable and antenna analyzer, spectrum analyzer, interference analyzer, power meter, channel scanner, transmitter analyzer (P25 and iDEN), transmission analyzer for 2-port devices (built-in RF source), and GPS receiver.
This optimal combination of network test capabilities eases the job of a technician by eliminating the need for several independent test instruments, reducing the number of tools the technician must carry and learn to operate. The LMR Master is a low-cost, easy-to-use, and rugged solution designed specifically for field based technicians and engineers.
Rugged and Reliable
The Anritsu Handheld S412D is specifically designed for field environments and can easily withstand the day-to-day punishment of field use. The analyzer is almost impervious to the bumps and bangs typically encountered by portable field-based equipment. The battery can be changed without tools in seconds when necessary to help extend measurement time in the field.
Transmissive Color Display
The standard transmissive color display is viewable in direct sunlight and at wide viewing angles.
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The LMR Master is the only instrument you need for complete LMR system maintenance and trouble-shooting.
RS-232 Interface
Transfer stored data to and from a personal computer (PC) via a serial cable for further analysis. Use PC to automatically control and collect data in the field.
Snap-in field replaceable battery location
Rugged and Reliable Chassis Design
Ruggedized, lightweight, compact, high-impact housing is designed to withstand repeated drops and rough handling. Weather resistant seals and rubber membrane keypad protect unit from dirt and moisture.
TFT Color Display
Standard TFT (640x480) color display featuring variable brightness control. Viewable in direct sunlight.
External DC Power Port
Fun ct io n Keys
Four dedicated function keys simplify measurement tasks.
and Power Meter Port
GPSSpectrum Analyzer
Soft Keys
Intuitive soft key menu and user interface.
Cable and Antenna Analyzer Port
External Trigger and External Frequency Reference In
Save and Recall Setup
Save 10 to 13 setups for fast repeatable testing (mode dependent).
Marker
Six markers for more comprehensive measurements.
Limit
Create simple pass/fail measurements with a single limit line, upper and/or lower mask limit lines.
Save and Recall Display
Up to 300 memory locations. Alphanumeric data labeling and automatic time/date stamp simplify data management.
AM/FM Receiver with Internal Speaker
Built-in AM/FM demodulator enables testing and trouble-shooting of wireless communications systems. An internal speaker and headphone jack are included.
Function Benefits
Cable and Antenna Analyzer Quickly finds small, hard to identify faults before major failures occur.
Spectrum Analyzer Easily locate, identify and record various signals with incredible accuracy.
Power Meter Performs accurate power measurements, reducing holes and interference.
High Accuracy Power Meter Perform accurate RMS power measurements for both CW and modulated signals.
Channel Scanner Measures frequency, bandwidth and power of multiple transmitted signals.
Transmission Measurement
Interference Analyzer
GPS Receiver Built-in receiver for location information.
P25 Signal Analyzer
P25 Talk-Out Coverage Measurements Received Power and BER (1011 Hz pattern) along with GPS location and time.
iDEN Signal Analyzer RF and demodulation measurements to monitor iDEN/WiDEN.
Variable Bias Tee Eliminates the need for an external power supply when biasing tower mounted amplifier.
Built-in signal source to measure gain or loss of two port devices, as well as tower mounted amplifier antenna isolation measurements and repeater testing.
Identify and locate interfering signals that cause dropped calls and coverage problems. Intermittent problems can be identified using spectrograms.
RF measurements, demodulation and BER (1011 Hz pattern) help the technician to quickly check LMR system performance.
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Cable and Antenna Analysis – Increase System Uptime
The LMR Master cable and antenna analyzer uses Frequency Domain Reflectometry (FDR) to help technicians and wireless field engineers detect cable, feedline and antenna system problems before they become costly, time-consuming system failures. Superior immunity to ambient RF levels, and excellent directivity and source match ensure accurate and repeatable measurements.
FDR Technique
Frequency Domain Reflectometry (FDR) and Time Domain Reflectometry (TDR) have similar acronyms, and both techniques are used to test transmission lines. But, that’s where the similarities end. TDRs are not sensitive to RF problems: the TDR stimulus is a DC pulse, not RF. Thus, TDRs are unable to detect system faults that often lead to system failures. Additionally, FDR techniques save costly, time-consuming trouble shooting efforts by testing cable feedline and antenna systems at their proper operating frequency.
Deficient connectors, lightning arrestors, cables, jumpers or antennas can be replaced before call quality is compromised.
Quick, Simple Measurements
LMR Master performs various RF measurements aimed at simplifying cable feedline and antenna system analysis: Return Loss, SWR, Cable Loss and Distance-to-Fault (DTF). A single softkey selection on the main menu activates the desired measurement mode.
Return Loss, SWR
Return Loss measures the signal energy that is “reflected” or returned back to where it came from. VSWR (Voltage Standing Wave Ratio) is another method to measure the reflections. Return Loss and SWR “system” measurements ensure conformance to system performance engineering specifications. Measurements can easily be toggled between the two modes and can be performed without climbing the tower.
Cable Loss
Cable Loss measures the RF energy that is lost to heat and leakage as the signal travels down the cable. Insertion loss can be verified prior to deployment, when you have access to both ends of the cable, or on installed cables with access to the opposite end.
The S412D LMR Master automatically calculates and displays the average cable loss so there’s no more guess work or need for complicated calculations in the field.
Distance-to-Fault
Although a Return Loss test can show users the magnitude of signal reflections, it can not show the precise location of a fault within the cable and antenna system. Distance-To-Fault measurements provide the clearest indication of trouble areas as it shows both the magnitude of the signal reflection and the location of the signal anomaly.
Distance-To-Fault can easily identify connector transitions, jumpers and kinks in the cable and antenna system. Return Loss/SWR measurement data is processed using Fast Fourier Transform and the resulting data indicates
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Return Loss/SWR versus distance.
Spectrum Analysis – Anywhere, Anytime
The S412D LMR Master integrated spectrum analysis capability provides the “ultimate” in measurement flexibility for field environments and applications requiring mobility. With the S412D you can locate, identify, record and solve communication systems problems quickly and easily, and with incredible accuracy – making it a perfect solution for conducting field measurements in the 100 kHz to 1.6 GHz frequency range.
Smart Measurements
The LMR Master has dedicated routines for smart measurements of field strength, channel power, occupied bandwidth, Adjacent Channel Power Ratio (ACPR), Carrier-to-Interference and interference analysis. These are increasingly critical measurements for today’s wireless communication systems. The simple interface for these complex measurements significantly reduces test time and increases analyzer usability.
Occupied Bandwidth
This measurement calculates the bandwidth containing the total integrated power occupied in a given signal bandwidth. There are two different methods of calculation depending on the technique used to modulate the carrier. The user can specify percent of power or the “x” dB down point, where “x” can be from 1 dB to 120 dB below the carrier.
Adjacent Channel Power Ratio
A common transmitter measurement is that of adjacent channel leakage power. This is the ratio of the amount of leakage power in an adjacent channel to the total transmitted power in the main channel. This measure­ment is used to replace the traditional two-tone intermodulation distortion (IMD) test for system non-linear behavior.
The result of an ACPR measurement can be expressed either as a power ratio or a power density. In order to calculate the upper and lower adjacent channel values, the LMR Master allows the adjustment of four parameters to meet specific measurement needs: main channel center frequency, measure­ment channel bandwidth, adjacent channel bandwidth and channel spacing. When an air interface standard and channel are specified in the S412D, all these values are automatically set to the normal values for that standard.
AM/FM Demodulator
A built-in demodulator for AM, narrowband FM, wideband FM and single sideband (selectable USB and LSB) allows easy identification of interfering signals.
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