Digital Modulation Analysis 89600 VSA Software Option 89601AYAC - Technical Overview

Option 89601AYAC (Replacing 89601B/BN/BK-AYA, BHA and BHK)

• Over 40 digital modulation formats, including PSK, QPSK, QAM, FSK, VSB, custom APSK, SOQPSK

• Over 30 standard communication formats, including GSM/EDGE/EDGE Evolution, Wi-SUN, ZigBee, Bluetooth® (Previously support as 89601B/BN/BK-AYA)

• Perform digital modulation analysis on non-standard user defined IQ signals (Previously support as 89601B/BN/BK-BHK)

• Perform TETRA Enhanced Data Services (TEDS) modulation analysis (Previously support as 89601B/BN/BK-BHA)

• Perform Flex Frame modulation analysis with flexible frame structure definition including multiple segments of preamble, pilot, data or idle with different modulation type (for data) or specific training sequence (for preamble or pilot). Users can identify each segment for synchronization, channel estimation, and EVM calculation

• Troubleshoot signals using modulation error analysis tools: EVM, IQ errors, and more

• Identify linear errors with adaptive equalization

• Automate tests with SCPI or .NET programmability

Flexible Vector Modulation Analysis

Option 89601AYAC is designed to analyze a wide range of digital modulations and standards including types as simple as BPSK or as complex as 4096 QAM, with presets for many cellular, wireless networking, and digital video standards as well. Flexible measurement parameter setup, powerful error analysis, including EVM, and insightful displays help explain every aspect of a signal.

The many modulation types in Option 89601AYAC are just some of over 75 signal standards and modulation types supported by the 89600 VSA software. The 89600 VSA software is a comprehensive set of tools for demodulation and vector signal analysis. These tools enable you to explore virtually every facet of a signal and optimize your most advanced designs. As you assess the tradeoffs, the 89600 VSA helps you see through the complexity. Option 89601AYAC also includes the more flexibility on digitally modulated signal analysis (custom IQ modulation analysis). This capability enables longer symbol length analysis capability with fully IQ map for signal quality measurements.

Technology Overview

Vector modulation, also referred to as digital or complex, refers to modulation where both amplitude and phase are used simultaneously to carry information on a signal. Common examples are BPSK, QPSK, QAM and their many derivative forms. Because they use two dimensions to carry information, these systems can transmit more data over the same bandwidth, making them more spectrally efficient. However, this comes at the cost of increasing complexity in system design, test, and build. Versatile tools are needed to deal with the many inventive ways vector modulation is used. Both phase and amplitude must be acquired and analyzed. The modulation format and symbol rate used are specific to the application, and numerous transmit and receive filter designs exist to minimize spectral splatter.

Analysis and Troubleshooting

Complex modulation formats require modern tools for troubleshooting. Option 89601AYAC provides a rich set of flexible vector modulation displays, useful for everything from examining simulations to measuring prototype hardware’s results output. In all cases, error measurements help track down the source of problems in a signal.

Advanced Digital Demodulators

Successfully demodulate a signal knowing just the carrier frequency, filter type, and symbol rate; no need for external filtering, coherent carrier signals or symbol-clock timing signals. Use the custom APSK capability to analyze signal types like on-off keying, 64 APSK as well as non-standard formats. Define a custom constellation based on up to 8 arbitrarily spaced rings and up to 256 points.

Error Vector Magnitude

Pinpoint marginal conditions before they become system performance problems using the powerful EVM analysis tool.

• Compare the phase and magnitude of the input signal with an ideal reference signal stream

• View the average error as a single overall number, or on a symbol-by-symbol basis

• Use the EVM time or spectrum measurement to identify systematic

• impairments not visible otherwise

Custom IQ Modulation Analysis

89601AYAC now also supports the more flexible digital modulation analysis based on custom defined IQ signals (Previously support as 89601B option BHK). The right window is a demo for 24QAM signals with the constellation defined by the customer configuration. This is not a normal digital modulation analysis with preset as 16QAM or 32QAM, but you can make this kind of flexible modulation analysis using Custom IQ.

TEDS Modulation Analysis

89601AYAC now also supports TEDS (TETRA Enhanced Data Services) modulation analysis (Previously support as 89601B option BHA). The right window is a demo for TEDS CUB signals with 100 kHz bandwidth configuration. Furthermore, TEDS measurement also supports slot formats as NUB (Normal Uplink Bandwidth), NDB (Normal Downlink Bandwidth), RAB (Random Access Burst) with bandwidth options of 25 kHz, 50 kHz, 100 kHz or 150 kHz.

Flex Frame Modulation Analysis

89601AYAC adds more flexible analysis targeting very wideband application like early 6G research and satellite communications. You can define multiple component carriers with one as reference carrier. Flexible frame structure can be defined with multiple segments as Preamble, Pilot, Data, or Idle. Users can identify each segment used for synchronization, channel estimation, and EVM calculation. Demos for 802.11ad, 802.11ay, DVB-S2X, and mixed modulation for Preamble and Data segments are provided which provide you the reference for powerful configurations with Flex Frame measurement.