SELLING THE ENGINEERING SERVICES : INTERFERENCE ANALYSIS & POINTING THE SOURCES - VECTOR SIGNAL ANALYSIS - SPECTRUM ANALYSIS - MEASURING THE GSM - DCS - WCDMA - EDGE - EDGE EVOLUTION - CDMA 1X & TETRA SIGNALS. THE MULTI CARRIER BTS - MCPA, TMB, SSPA, LNA

Harga:

NEGOTIABLE BASED ON WORK LOAD - DURATION AND TRAINING SPECIFICATION

Jumlah Pesanan:

Negara Asal:

Indonesia

Jumlah:

NOT LIMITED TO

Kemas & Pengiriman:

CONTRACT - PURCHASE ORDER

WE PROVIDE THE FOLLOWING SERVICES & FACILITIES FOR SUPPORT CELLULAR OPERATOR' S IN THE MAINTAINING NETWORK QUALITY & CUSTOMER SATISFACTION.

VECTOR SIGNAL ANALYSIS : THE RF VECTOR SIGNAL MEASUREMENT OF ANALOG & DIGITAL MODULATION FORMAT SUCH AS : AM, FM, GSM, EDGE, WCDMA, CDMA, WIMAX, LTE , QPSK, BPSK, QAM TRANSMITTER & MCPA - MULTI CARRIER POWER AMPLIFIER & REPEATERS, AND OTHER LINEAR HIGH POWER AMPLIFIERS.

TEST ITEMS such as :

LINEAR GAIN
RF BURST POWER
SPECTRUM ANALYSIS
LINEARITY
DISTORTION
INTERMODULATION
ERROR VECTOR MAGNITUDE
GROUP DELAY
INTERMODULATION
NOISE
GAIN FLATNESS
ADJACENT CHANNEL POWER
SPURIOUS HARMONICS
SPECTRAL REGROWTH
CHANNEL POWER
ADJACENT CHANNEL POWER

and other vector parameters not listed yet, but the measurements comply with the with industries standard IEEE, 3GPP,
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VECTOR SIGNAL ANALYZER TECHNOLOGY :

Analog, swept-tuned spectrum analyzers use superheterodyne technology to cover wide frequency ranges; from audio, through microwave, to millimeter frequencies.

Fast Fourier transform ( FFT) analyzers use digital signal processing ( DSP) to provide high - resolution spectrum and network analysis.

Today’ s wide-bandwidth, vector-modulated ( also called complex or digitally modulated) , time - varying signals benefit greatly from the capabilities of FFT analysis and other DSP techniques.

VSA provides fast, High- resolution spectrum measurements, demodulation, and advanced time-domain analysis. VSA is especially
useful for characterizing complex signals such as burst, transient, or modulated signals used in Communications, video, broadcast, radar, and software-defined radio applications.

A significant characteristic of the VSA is that it is designed to measure and
manipulate complex data. In fact, it is called a vector signal analyzer because
it has the ability to vector detect an input signal ( measure the magnitude
and phase of the input signal)

It is basically a measurement receiver with system
architecture that is analogous to, but not identical to, a digital communications
receiver. Though similar to an FFT analyzer, VSAs cover RF and microwave ranges, plus additional modulation-domain analysis capability. These
advancements are made possible through digital technologies such as analog-to-digital conversion and DSP that include digital intermediate frequency ( IF) techniques and fast Fourier transform ( FFT) analysis.

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Other VSA capability such as nonlinear distortion is a critical performance parameter for power amplifiers - repeaters in mobile radio networks. Excessive distortion can degrade bit-error-rate ( BER) performance, resulting in poor network voice and data transmission. Fortunately, the vector signal analyzer is an instrument designed not only for precise detection of vector and scalar modulation errors, such as error-vector-magnitude ( EVM) characteristics, but also for the evaluation of amplifier and system-distortion characteristics. Since the analyzer does not require any special conditions or test signals for effective measurements, the instrument can be used to analyze burst signals from base stations while the mobile radio network is operational.

Traditionally, two-tone or multitone methods were used with a selective voltmeter or a spectrum analyzer to determine the compression point of a device under test ( DUT) .

Network analyzers allow similar approaches using power sweeps. These methods employ test signals with little relation to " real-world" signals, or signals that are only optimized to the spectral bandwidth or the statistical signal distribution.

Vector signal analyzers are used to measure the scalar and vector modulation parameters and modulation errors of digitally modulated mobile radio signals. Modern concepts enable these instruments to be used for measuring and evaluating linearity errors as well, since all necessary data are collected during the course of normal measurements. In fact, a standard test setup can be used without additional measuring instruments or special test signals.

FOR MORE INFORMATION, PLEASE VISIT & CONTACT :

WEB : www.rfpropagation.com www.rfsolution.info

E MAIL :
sales@ rfpropagation.com

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