In the fields of wireless communication, radar, aerospace, etc., vector signal transceivers (VST) are indispensable core equipment in test and measurement. However, many engineers are often confused about the various definitions of "bandwidth" of VST. Today, let's learn the definitions of "analysis bandwidth" and "real-time bandwidth" of vector signal transceivers and spectrum analyzers with MET.
01 The "Bandwidth" of VST
For VST and spectrum analyzers, various bandwidth indicators are crucial because they directly determine the performance and application range of the equipment.
Signal generation and analysis bandwidth（Analysis Bandwidth）
Significance: Determines the signal frequency range that the device can process in a single operation and is suitable for broadband signal generation and analysis.
Definition: The maximum bandwidth that a VSA can acquire and process signals in "real time".
Significance: Determines the device's ability to process real-time signals and is applicable to scenarios such as frequency-hopping signals and dynamic signals.
For example：
If a spectrum analyzer has an analysis bandwidth of 1 GHz and a real-time bandwidth of 160 MHz, this means:
-- It can analyze signals in the 1 GHz range in one scan, but may miss some fast-changing signals;
-- With a bandwidth of 160 MHz, it can capture 100% of all signal events without missing any transient phenomena.
For applications that require monitoring of fast-changing signals (such as frequency-hopping signals), real-time bandwidth is an even more critical specification because it ensures that no signal events are missed.
02 MET VST Technology Product Introduction
The MVT-082A vector signal transceiver in the METER™ series of PXIe modular measuring instruments integrates a dual-channel vector signal generator and a dual-channel vector signal analyzer module, with a frequency range of 10 MHz to 8 GHz. It has a signal generation and analysis bandwidth of 600 MHz (expandable to 1.2 GHz or 2.5 GHz), and can realize the functions of generating and analyzing various types of vector signals when used with the SageWave™ spectrum analyzer series software.
Typical Applications：
● Modulation signal analysis
● Cellular network testing (LTE/5G NR)
● RF front-end device and power device testing
● Wi-Fi, Bluetooth testing
Main indicators：
● Frequency range ………… 10 MHz~8 GHz
● Generate and analyze bandwidth … 600 MHz
● Real-time bandwidth ………… 160 MHz
● Number of channels …………… 2-TX,2-RX
● Frequency step ………… 1 Hz
MVT-082A
PXIe Modular measuring instruments
Vector signal transceiver
The MVT-082C vector signal transceiver unit in the METER™ series PXI modular measuring instruments integrates a dual-channel vector signal generator and a dual-channel vector signal analyzer module, with a frequency range of 10 MHz to 8 GHz. It has a signal generation and analysis bandwidth of 600 MHz (expandable to 1.2 GHz or 2.5 GHz) and a real-time bandwidth of 320 MHz. When used with the SageWave™ spectrum analyzer series software, it can realize the functions of generating and analyzing various types of vector signals.
Typical Applications：
● Modulation signal analysis
● Cellular network testing（LTE / 5G NR）
● RF front-end device and power device testing
● Wi-Fi 7, Bluetooth testing
● Frequency range …………… 10 MHz~8 GHz
● Generate and analyze bandwidth …… 600MHz
● Real-time bandwidth…………… 320MHz
● Number of channels ……………… 2-TX,2-RX
● Frequency step …………… 1 Hz
MVT-082C
PXIe Modular measuring instruments
Vector signal transceiver
03 Application software for signal generation and analysis
SageWave™
Powerful parameter setting function, such as configurable center frequency, bandwidth, marker and other test parameters
High-precision measurement, using high-precision algorithms and advanced signal processing technology to accurately measure basic parameters such as signal frequency, amplitude, bandwidth, etc.
Comprehensively analyze signal characteristics, accurately analyze modulation characteristic indicators such as ACLR and adjacent channel power of modulated signals, and provide a reliable basis for signal quality evaluation
Integrate advanced algorithms to draw intuitive spectrum diagrams, multiple visualization options, and intuitively present signal characteristics
Time domain analysis function monitors the signal changes over time in real time, helping you fully understand the dynamic characteristics of the signal
Supports multiple standard formats to save analysis results, facilitating subsequent research and sharing
DesignerWave™ software helps you easily control the AWG (arbitrary waveform generator) and VSG (vector signal generator) in PXIe modular measurement instruments.
One-touch intelligent connection, quick identification of AWG and VSG devices, no more tedious configuration
For AWG: A variety of waveform types are available, such as PRBS, PAM4, etc.; accurate jitter injection and noise injection can be performed to achieve high-speed signal simulation and measurement
For VSG: Support frequency, power and other parameter settings, support multi-tone modulation signal configuration, simulate real and complex communication environment, and provide comprehensive guarantee for equipment performance evaluation
MET Technology has always been committed to providing customers with high-performance, high-reliability test and measurement solutions. MVT-082A and MVT-082C have become the benchmark choice in the industry with their excellent performance and wide range of application scenarios. Welcome to contact MET Technology, we will serve you wholeheartedly!
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