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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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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 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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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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PCI Counter/Timer with Quadrature Board
APC483
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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3MHz Multi-Waveform Signal Generator with Modulation
Model MSGM3M
- 0.3Hz to 3MHz Frequency Output in 8 Ranges- Versatile Waveforms: Sine, Square, Triangle, Ramp, Pulse and DC outputs- Standard AM, Balance AM, FM, ASK, FSK, PWM Modulation and Sweep Mode- Internal / External Modulation
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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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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 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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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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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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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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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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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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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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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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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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Eight and Four Channel Quadrature Encoder Input Cards
mPCIe-QUAD
The mPCIe-QUAD-8 consists of a type F1 PCI Express Mini Card (mPCIe) interface board that connects to two DB-37F Modules via included 9” cables. The mPCIe-QUAD-4 consists of a type F1 PCI Express Mini Card (mPCIe) interface board that connects to one DB-37F Module via an included 9” cable. The modules are designed to be easily panel-mounted in any application environment, and have convenient mounting holes for non-panel-mount applications. Up to eight differential (or single-ended) encoders (each with A, B, and Index) can be monitored simultaneously.
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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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Satellite TV External Modulation Optical Transmitter
HES-26S ( 950~2600MHz )
Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai 1550nm satellite TV external modulated optical transmitter HES-26S, adopts external modulated technology, no laser chirp, very low dispersion distortion, high extinction ratio. It applies to long distance, high quality network application. It can transmit 950~2600MHz satellite SAT-IF signal through one fiber.
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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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Amplitude Detectors
Amplitude detection, which eliminates the carrier (or the subcarrier) at the Doppler filter output
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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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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
APC482
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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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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9KHz-3.2GHz, Spectrum Analyzer, Phase Noise<-98dBc/Hz, Amplitude Accuracy<0.7dB, 10.1" Color Display
T3SA3200
9KHz-3.2GHz, Spectrum Analyzer, Phase Noise<-98dBc/Hz, Amplitude Accuracy<0.7dB, 10.1" Color Display.
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Multicoupler, Rack Mount, 1U, Switchable Dual 2×4/1×8, LL/S/C , Programmable Amplitude Balance
LS-16A-R1-24SLSC
High Performance rack mount 1U x 12” deep switchable Multicouplers are available in multiple IN X OUT configurations, such as 1×8, dual 2×4, 1×4 and 1×6. The LS-16 product line covers 300 MHz to 6000 MHz. High output/output isolation and Ethernet / USB controllable gain adjustments for each channel are available as options.
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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.
