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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
- TEAM SOLUTIONS, INC.
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Quadrature Signal Generator
TE5100-PCI
The TE5100 is a 100MHz Direct Digital Synthesized Signal Generator available in a 3U, CompactPCI or straight PCI format. The TE5100 generates Sine and ACMOS/TTL output signals simultaneously up to 100MHz in 1 µHz steps. Sweep, FSK, Chirp and Single Tone are generated on board. The virtual panel allows control up to 100MHz of all parameters. The TE5100 is equipped with a ±1ppm on-board TCXO clock and can accept an external clock source.
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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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Quadrature Sensor
SPECTEC Innovative Sensor Solutions
DIGISPEC Hall Effect Quadrature Sensors provide two digital output signals, 90º out of phase to each other, detecting speed (down to true zero speed) and direction of rotation of gear teeth and ferrous targets. Gear teeth as small as module 0.10" wide can be sensed. Standard output is provided from a 2.2kOhm internal pull-down resistor to a collector, which can sink 25 mA. Open collector can be provided. Output is protected against reverse voltage.
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Modulation Analyzer
8201A
The Model 8201A 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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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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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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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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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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Quadrature Digital Up Converters
QDUC
Analog Devices digital up/downconverters serve as the frequency translator and digital filter between data converters and DSP blocks. These innovative products enable highly programmable and configurable receive and transmit signal chains, allowing multichannel, multicarrier radio platforms in 3G wireless base stations. They also meet the digital data conversion requirements for many other communications applications.
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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 Measurement System
MMC
This connector panel is used to bring test signals from the rear side of a rack up to the front side of the rack so that measurements can be made without climbing in behind the rack.
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Analog Modulation and Frequency-Dependent Measurements
Modern lightwave transmission systems require accurate and repeatable characterization of their optoelectronic, optical and electrical components to guarantee high-speed performance.
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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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IRIG Amplitude Modulated Time Code Distribution Amplifier
1205A / 1205A-MC
Precise Time and Frequency, Inc.
The ptf 1205A is a 12-channel IRIG amplitude modulated time code distribution amplifier housed in a 1U high, 19″ rack package. The ptf 1205A uses an RF design combining the latest technology in low noise components to minimize input/output delays which are of the order of nano seconds.The unit uses two stages of input signal buffering to distribute the input signal to 12 separate outputs, and insure maximum isolation between individual output signals.
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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.
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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 And Beyond 125 GHz
S930713B
S930713B enables fast and accurate active-device modulation distortion characterization under modulated stimulus conditions up to and beyond 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. S930713B 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 For E5081A Up To 20 GHz
S960704B
The Keysight S960704B modulation distortion software application enables fast and accurate active device modulation distortion characterization under modulated signal conditions up to 20 GHz. The wide dynamic range and vector error correction of the ENA-X yield an extremely low residual EVM of the test setup, delivering a complete picture of your device’s signal distortion performance without test system interference. S960704B software measures EVM, NPR, ACPR, and decomposes linear and nonlinear signals by spectrally correlating input and output spectrum without needing to demodulate. Integration with the ENA-X measurement flexibility enables quick modulated signal distortion measurements along with traditional VNA tests.
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Optical Modulation Analyzer and High-speed Digitizer Test Solution
M8290A
The M8290A is a flexible solution platform for 400G coherent component and transmitter test. It incorporates a 92 GSa/s modular optical modulation analyzer and a 92 GSa/s 4-channel electrical digitizer. Besides these modules an additional arbitrary waveform generator module up to 92 GSa/s, such as the M8196A, can be added to the same AXIe chassis. This setup results in a compact and flexible coherent test solution that can be used together with additional specialized solution software for Integrated Coherent Receiver (ICR) and Analog Coherent Optical (ACO) module characterization.
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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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Modulation Distortion Up To 70 GHz
S930707B
S930707B enables fast and accurate active-device modulation distortion characterization under modulated stimulus condition up to 70 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. S930707B 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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Signal, Spectrum, & Modulation Analyzers
A tool used to analyze data. For example, a gas analyzer[1] tool is used to analyze gases. It examines the given data and tries to find patterns and relationships. An analyser can be a piece of hardware or software.
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Two Channel Phase and Amplitude Noise Analyzer
DCNTS -190
The DCNTS is a two channel Phase and Amplitude noise analyzer. Its dual demodulator architecture allows the system to use cross-correlation to cancel its internal noise and limitation; it is like comparing the outputs of 2 systems and only display the similarities while rejecting differences. Its main extension is the Residual Noise measurement front-end which includes all necessary hardware to automatically measure residual noise on 2-ports devices either in RF frequencies or microwave. It could be a frequency multiplier or divider, an amplifier or any other phase coherent input to output device.
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PC/104 Digital Quadrature Encoder Input Board
104-QUAD-8
The 104-QUAD-8 card is a general purpose Quadrature Encoder Counter/Interface board. It is provided in the popular 104 format and conditions and monitors the outputs of 8 encoders. I/O connectors are right-angle 34-pin headers.
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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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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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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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Modular Optical Modulation Analyzer
M8292A
Optimized for the 400G speed class, the M8292A optical modulation analyzer provides a compact, faceless and rack-mountable test instrument that connects to the optical output of coherent transmitters. It leverages the full feature set of Keysight's vector signal analyzer and optical modulation analyzer software ensuring a known-good customer experience for analyzing complex modulated data signals.
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Arbitrary Load Control For Modulation Distortion - Export Control
S94571B
Load pull capability for modulation distortion measurements up to 50 GHz for export controlled countries
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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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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.
