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Quadrature Amplitude Modulation
a digital bitstream whose values are represented by adjustments in phase and amplitude of sinusoidal electromagnetic waves.
See Also: QAM, QAM Analyzers
- DragoonITCN
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Countermeasures Sequential Timing & Amplitude Tester
C-STAT
C-STAT, or Countermeasures Sequential Timing and Amplitude Tester, is a Firing Pulse Interval Test Set, a suite of test components designed to analyze firing pulse timing and amplitudes from a CMDS system such as ALE-47.
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DSP Upconverters
Renesas digital signal processing (DSP) upconverter products include a quad programmable upconverter (QPUC) which is a QASK/FM modulator/FDM upconverter designed for high dynamic range applications such as cellular basestations and a wideband programmable modulator (WPM) which is a quadrature amplitude modulator/upconverter designed for wideband digital modulation.
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QAM And PCM Analyzers
GAOTek provides a wide range of high performance and inexpensive QAM/PCM analyzers. Quadrature amplitude modulation (QAM) and pulse code modulation (PCM) analyzers are convenient instruments with top to bottom estimations and adaptable setups. Additionally, these devices have integrated functions of analog signal generators/receivers, BERT, signaling generators/receivers, selective level meters, ring generators/ identifications, dialers, DC loop circuits (ICT, OGT), balanced bridges and reflecting bridges into solitary instruments. These analyzers are ideal for installing and maintaining digital and analog networks.
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Couplers (Quadrature, 180, Directional)
PMI offers the highest quality quadrature couplers for commercial and military applications in the frequency range of a few MHz to 40 GHz. If you do not see exactly what you need, please email your requirement to sales@pmi-rf.com so we can propose an instant solution.
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Modulation Analyzers
Provides precision modulation and audio analysis in a single, easy-to-operate package. Measures AM, FM, PM, carrier and audio frequencies, SINAD, distortion and carrier level.
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Coherent Modulation Transmitter
IQTX
Generating and controlling phase modulated optical signals is easy with the IQTX. The IQTX is referred to as a ‘Golden’ reference optical signal source because of its high repeatability and reliability.Its high bandwidth of 40 GHz ensures high quality optical signal generation, making it the ideal optical signal source for coherent communications applications.
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Amplitude Detection
DLVA
BSC have full design and manufacture expertise in house to offer high reliability mixed technology Microwave and RF modules such as Successive Detection Log Video Amplifiers (SDLVA).
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Modulation Distortion Up To 43.5 GHz
S930704B
S930704B enables fast and accurate active-device modulation distortion characterization under modulated stimulus condition up to 43.5 GHz. The wide dynamic range and vector error correction of the PNA-X result in an extremely low residual EVM of the test setup, so you can get a complete picture of your device’s performance without test system interference. S930704B can measure EVM, NPR, ACPR, and can decompose nonlinear signals and linear signals with the spectral correlation between input and output spectrum without doing demodulation. Integration with the PNA-X SCCM provides quick modulation distortion measurements while making other VNA measurements.
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Amplitude Detectors
Amplitude detection, which eliminates the carrier (or the subcarrier) at the Doppler filter output
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Modulation Distortion Up To 26.5 GHz
S930702B
S930702B enables fast and accurate active-device modulation distortion characterization under modulated stimulus condition up to 26.5 GHz. The wide dynamic range and vector error correction of the PNA-X result in an extremely low residual EVM of the test setup, so you can get a complete picture of your device’s performance without test system interference. S930702B can measure EVM, NPR, ACPR, and can decompose nonlinear signals and linear signals with the spectral correlation between input and output spectrum without doing demodulation. Integration with the PNA-X SCCM provides quick modulation distortion measurements while making other VNA measurements.
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Optical Modulation Index
OMI
*Automatically measures OMI*Helps to optimize transmitters in just minutes*Eliminates the need for expensive equipment*Useful for multiple CATV system procedures*DOCSIS 3.1 compatible
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Modulation Distortion For E5081A Up To 44 GHz
S960707B
The S960707B modulation distortion software application provides nonlinear DUT behavior tests (EVM, NPR, and ACPR) under modulated stimulus conditions.
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Quadrature Position & Rate Meter
Accepts low-level differential or single-ended 5 V logic level quadrature signals from shaft encoders to display scaled position or scaled rate. One, two or four transitions may be counted at a maximum combined rate of 250 kHz and be mathematically scaled to display in engineering units from -999,999 to +999,999. An analog output scaled to the display and relay outputs are optional.
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Optical Modulation
Unlocking the potential of optical modulation at Exail involves navigating a landscape of challenges. Essential objectives include high-speed modulation for efficient data transmission, precise modulation depth control, and minimizing signal distortion. Managing power consumption and ensuring stability across varied environmental conditions are equally critical. These challenges propel us to refine and innovate, meeting the dynamic demands of tomorrow's optical applications.
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Quadrature Incremental Decoder Interface for VMEbus
VME323
The VME323 is an Intelligent Quadrature Incremental Decoder VMEbus Board which can be configured for interfacing quadrature incremental encoders with or without an index channel. In index mode up to sixteen encoders with two quadrature channels and an index channel can be connected, and in non-index mode up to twentyfour encoders with two quadrature channels can be connected. The VME323 operates on two encoder input channels and decodes a pair of out-of phase signals in order to increment or decrement a counter.
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Modulation Distortion Up To 90 GHz
S930709B
S930709B enables fast and accurate active device modulation distortion characterization under modulated stimulus conditions up to 90 GHz. The wide dynamic range and vector error correction of the PNA-X results in an extremely low residual EVM of the test setup, delivering you a complete picture of your device’s performance without test system interference. S930709B measures EVM, NPR, ACPR, and decomposes nonlinear signals and linear signals with the spectral correlation between input and output spectrum without doing demodulation. Integration with the PNA-X SCCM provides quick modulation distortion measurements while making other VNA measurements.
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Modulation Distortion Up To 125 GHz
S930712B
S930712B enables fast and accurate active device modulation distortion characterization under modulated stimulus conditions up to 125 GHz. The wide dynamic range and vector error correction of the PNA-X results in an extremely low residual EVM of the test setup, delivering you a complete picture of your device’s performance without test system interference. S93072B measures EVM, NPR, ACPR, and decomposes nonlinear signals and linear signals with the spectral correlation between input and output spectrum without doing demodulation. Integration with the PNA-X SCCM provides quick modulation distortion measurements while making other VNA measurements.
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Modulation Distortion Up To 53 GHz
S95070B
S95070B software enables fast and accurate active device modulation distortion characterization under modulated stimulus conditions up to 53 GHz. The wide dynamic range and vector error correction of the PXI VNA results in an extremely low residual EVM from the test setup, giving you a complete picture of your device’s performance without test system interference. S95070B software measures EVM, NPR, ACPR, and decomposes nonlinear signals and linear signals through spectral correlation between the input and output spectrum, without doing demodulation. Integration with the PXI VNA’s measurement flexibility enables you to do quick modulation distortion measurements along with traditional VNA tests.
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Integrated Optical Modulation Analyzer
N4392A
The new Keysight N4392A is an ultra-compact, portable fully integrated optical modulation analyzer with a 15'' laptop-size screen. It is optimized for daily R&D work and designed for the most affordable performance verification in manufacturing and component test for 40/100G components, modules and systems. It is the first optical modulation analyzer that provides built-in performance verification and recalibration, extending the factory recalibration cycles significantly.
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Modulation Distortion Up To 13.5 GHz
S930701B
S930701B enables fast and accurate active-device modulation distortion characterization under modulated stimulus condition up to 13.5 GHz. The wide dynamic range and vector error correction of the PNA-X result in an extremely low residual EVM of the test setup, so you can get a complete picture of your device’s performance without test system interference. S930701B can measure EVM, NPR, ACPR, and can decompose nonlinear signals and linear signals with the spectral correlation between input and output spectrum without doing demodulation. Integration with the PNA-X SCCM provides quick modulation distortion measurements while making other VNA measurements.
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0.3Hz-3MHz Amplitude Display Functional Generator
MFG-8303
Features:*Max. frequency up to 15MHz*Single-chip function generating module provides high stability and low distortion waveforms*5 digit frequency display, 3 digit amplitude display.*Built-in frequency meter for testing external signal up to 20MHz*Linear and Logarithmic sweep function.*AM/FM function optional(Models with suffix “A”)*5W Power Output function optional(Models with suffix “W”)
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FTTP Multi-Port Output 1550nm External Modulation 47~862MHz
HT8500M
Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HT8500M series, Multi-optical port output externally modulated transmitter, a research product which is designed for FTTx PON large area and multi-user access. HT8500M series, use high-power , low noise, narrow linewidth, continuous broadcast, DFB lasers. It can provide 4~10 way high linearity standard optical power output. It can connect 4~10 units high-power FTTB EDFA( Like Huatai HA5837-32). AS this product without EDFA, so each optical port can out put up to :CNR≥53.5dB, CTB≥-65dB, CTB≤-65dB, the high technical index.
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Optical Modulation Analyzer
OMA
In partnership with Tektronix, we bring you a high-performing and flexible OMA system that will meet your requirements today and into the future.With the market-leading performance of Quantifi Photonics’ IQRX coherent receiver and the scalable architecture of Tektronix’s high-performing oscilloscopes, you’ll get the most out of your investment. Use the stack as a single 70GHz OMA system, or use it as four independent oscilloscopes.Whether you are working with 100G coherent transceivers or 1 Terabit long haul communication systems, our OMA can be configured to suit your exact requirements.
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Amplitude Detectors with Isolators
Full band waveguide detectors are GaAs beam lead Schottky diode-based detectors that are specially designed for millimeterwave network analyzer applications. With a proprietary circuitry design and careful diode selection, these zero-biased detectors exhibit high sensitivity and extremely flat output characteristics. The below standard offering covers the frequency range of 18 to 170 GHz and offers a 1 MHz video bandwidth and 1 MΩ video output impedance. The standard models also have the capacity to handle a maximum RF input power of up to +17 dBm. The RF interface of these detectors is a standard waveguide with an integrated Faraday isolator to improve the port VSWR. The output voltage polarity is negative and the connector type is a female SMA. Other configurations are offered as custom models.
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PCI Counter/Timer with Quadrature Board
APC484
Several models with a variety of configurations provide up to ten counter/timer channels for counting events, generating waveform control signals, measuring pulse-widths, periodic rates, or quadrature position and monitoring operations.
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Time to Amplitude Converters and Calibrator
A Time-to-Amplitude Converter (TAC) can achieve exceptional precision by using an analog technique to convert small time intervals to pulse amplitudes. When a timing application demands picosecond precision, a time-to-amplitude converter is a prime candidate. A time-to-amplitude converter is a productive solution for measurements less than 10 μs when time resolutions from 10 ps to 50 ns are required.
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Quadrature Decoder Board
MSXB 050
The MSXB 050 Quadrature Decoder Board allows a Data Acquisition Processor to read quadrature-encoded signals through its digital port. Quadrature-encoded signals are often used to measure the angular velocity and angular position of wheels, gears, and motors.
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9KHz-2.1GHz, Spectrum Analyzer, Phase Noise<-98dBc/Hz, Amplitude Accuracy<0.7dB, 10.1" Color Display
T3SA3100
9KHz-2.1GHz, Spectrum Analyzer, Phase Noise<-98dBc/Hz, Amplitude Accuracy<0.7dB, 10.1" Color Display.
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0.3Hz-6MHz Amplitude Display Functional Generator
MFG-8306
Features:*Max. frequency up to 15MHz*Single-chip function generating module provides high stability and low distortion waveforms*5 digit frequency display, 3 digit amplitude display.*Built-in frequency meter for testing external signal up to 20MHz*Linear and Logarithmic sweep function.*AM/FM function optional(Models with suffix “A”)*5W Power Output function optional(Models with suffix “W”)
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Optical Modulation Generator Software
81195A
The Optical Modulation Generator Software 81195A introduces a new approach to optical test. Combined with the M8195A AWG it speeds up your test by a factor of up to 100 with its unique real-time mode. This helps design engineers of long-haul and metro optical transmission applications to maximize test efficiency and thus reduce development time and cost.
