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Modulation

the varying of amplitude, frequency, or phase.

See Also: Optical Modulation, Modulation Analysis, Modulation Analyzers, Modulation Meters, MER


Showing results: 346 - 360 of 384 items found.

  • 802.11ad Testbed, Reference Solution

    Keysight Technologies

    Generate and analyze 802.11ad fully coded PHY waveforms for complete component, subsystem, and system performance at baseband, IF, and millimeter-wave. This Reference Solution combines Keysight Technologies software and hardware to provide a flexible testbed for 802.11ad waveform generation and analysis. Software provides the flexibility to generate and analyze 802.11ad waveforms with a wide range of different attributes. Hardware provides the flexibility to support baseband, IF, and millimeter-wave test planes. Create waveform sequences with unique 802.11ad packet structures including Modulation Coding Scheme (MCS), packet length, payload data type, and interpacket gap length, etc.

  • Telemetry Transmitter for FM with up to 3 Bands

    LS-11-F - Lumistar Inc.

    The LS-11-F portable FM test transmitter is designed for checkout and troubleshooting of telemetry receiving systems operating with FM modulation. For applications with any of the ARTM modulations (Tier 0, Tier I, or Tier II), please refer to the LS-11-M Data Sheet. Complete ground stations including the antenna with LNA, RF down-converter, IF receiver, bit synchronizer, and PCM decommutator can be tested and bit error tests performed. The design allows secure links to be tested with an external encryptor. The Test Transmitter contains an internal PCM Data Simulator and Pseudorandom patterngenerator that operates in a BERT mode. The device provides simulated clock and data (without transmitter enabled) and accepts external data for modulating the internal transmitter. Complete setup can be achieved locally through the keypad and two-line LCD display or remotely through the USB Interface. Operational parameters include the PCM format parameter database information (frame sync patterns, wavewords, etc…), pre-modulation filter selection, transmitter carrier frequency, transmitter deviation, and output power level. Output power can be selected from approx. -60 to +5 dBm in 5 dB steps. The Test Transmitter contains a LiFePO4 Battery (Lithium Iron Phosphate), which provides higher energy density at ¼ the weight of legacy lead-acid batteries. The unit also provides an internal battery charger and will operate for up to twelve hours on battery power having received on a full charge.

  • Semiconductor Optical Amplifier

    SOA - Amonics Ltd.

    Amonics SOA is a polarization maintaining optical amplifier with high fiber-to-fiber gain. It is designed for transmitter applications to increase optical launch power to compensate for the loss of other optical devices. The benchtop version incorporates a user-friendly front panel housing a LCD monitor display, key switch, power control knob and optical connectors. RS232 computer interface is also equipped on the rear panel. 1MHz with 10ns pulse width intensity modulation is available. The OEM module version is an ideal building block for OEM system integration, especially in optical communication network and CATV applications. It requires only a single +5V power supply.

  • Stepper Motor Drivers

    Allegro MicroSystems

    Minimize noise and vibration in your stepper motor designs with our QuietStepTM adaptive stepper motor drivers. We offer a complete lineup of stepper motor drivers for office automation, industrial, and automotive applications. Our advanced QuietStepTM solutions use proprietary algorithms to reduce torque ripple and current distortion. To minimize ripple current for the various operating conditions, QuietStepTM adaptive stepper motor drivers perform on-the-fly adjustments to the amount of fast decay during a pulse-width modulation (PWM) cycle. This adaptive feature improves system performance, reduces audible motor noise and vibration, and increases step accuracy.

  • High Voltage Power Supplies

    Guth GmbH

    The mains voltage (230V / 3 x 400V) is transformed, rectified and filtered by the HN series. The direct current output voltage is tuned by a variable transformer or regulated by a thyristor controller. With the HS and HV series the rectified mains voltage is supplied to a frequency converter, which produces a mid-frequency square wave voltage. This transformed, rectified and filtered alternating current produces the desired voltage as output, which is regulated by means of frequency variation or pulse width modulation. The equipment in the HV series supply, in addition to the high voltage output, up to 3 auxiliary outputs which can be used to supply e.g. heating, grid voltage or surge voltage.

  • FLIM Camera Systems

    Excelitas Technologies Corp.

    The Excelitas pco.flim camera system consists of the pco.flim camera and pco.flim laser, with a complete frequency synthesizer, which is required for the generation of the modulation signals in the frequency domain. The pco.flim series features a high frequency modulated CMOS image sensor that enables pixel-wise measurements of sample luminescence lifetime distributions in frequency domain suitable for fluorescence lifetime imaging. At a maximum speed of 10 Hz, full luminescence lifetime distributions can be measured at 1 Mpixel resolution. With flexible coupling and easy setup, the pco.flim is an ideal choice for wide-field FD-FLIM instruments and suitable for a variety of biomedical applications requiring a large frame and high-speed acquisition.

  • High Frequency RF and Microwave USB Programmable Signal Generators

    LMS Series - Vaunix Technology Corporation

    The Lab Brick LMS series of high frequency RF and microwave USB-compatible, synthesized signal generators cover a frequency range from 0.5 MHz - 20 GHz with low noise, fast 100-microsecond switching time, and fine 100 Hz frequency resolution. They require no additional DC supply voltage and offer advanced features such as phase-continuous linear-frequency sweeping, internal/external 10 MHz reference, and optional pulse modulation. GUI software can track and control several connected signal generators, simplifying multiple-signal test setups. Each device stores settings in internal memory, allowing it to power up in a specific instrument state.

  • Real-time Spectrum Analyzers

    SSA3000X-R - SIGLENT Technologies

    The SIGLENT SSA3000X-R real-time spectrum analyzers are powerful and flexible tools for complex RF signal monitor and analysis. With a capability of 40 MHz analysis bandwidth and 7.2 µs 100% POI, the analyzer can provide multi-dimensions data displays, advanced triggering, and RF data capturing, to solve modern RF spectrum challenges, like hopping frequency, conflict channel, spectrum interference, etc. They also provide standard tracking generator for network analysis, optional wideband digital modulation analysis, and EMI pre-compliance test. Applications include broadcast monitoring/evaluation, cellular site, IoT, WiFi, Bluetooth surveying, research and development, education, production, and maintenance.

  • MOD MONITOR

    TYPE HFX-1 - National RF, Inc

    The Type HFX-1 Modulation Monitor is an ancillary piece of equipment, which is used with narrow bandwidth, or older oscilloscopes to allow viewing of RF signals and particularly modulated signals as high as 55MHz. The equipment contains an RF signal source and a broadband mixing circuit which converts the high frequency signal to an intermediate frequency within the oscilloscope’s range. The frequency control dial is simply adjusted until the RF signal is viewed on the scope. BNC connectors are mounted on the rear panel to allow interconnect to the scope and RF probe. This product was previously called "oscilloscope frequency extender" and may be used to view other high frequency signals on older or narrow band scopes.

  • PWM to Voltage Output D/A Converters

    Analog Devices Inc.

    Analog Devices’ pulse-width modulation (PWM) to voltage output D/A converters convert a PWM input to an accurate, stable, buffered voltage without the ripple, slow settling, and external passive components of discrete filter implementations. Our PWM D/A converters measure the period and pulse width of a PWM input signal and immediately update the D/A converter output with up to 12-bit accuracy and no software coding required. This family of D/A converters is available with 8-bit to 12-bit resolution, dual and quad channels, integrated references, and with high temperature operation. Applications include isolated motor control, automotive headlights or industrial lighting, and other applications that benefit from the simple control interface.

  • Dielectric Resonator Oscillators

    ERAVANT

    Dielectric resonator oscillators (DRO) are free running oscillators that utilize state-of-the-art planar circuits, three-terminal devices and dielectric resonator technology to generate high-quality microwave signals with excellent frequency stability. In addition, these oscillators are equipped with an internal voltage regulator that further improves the frequency stability by isolating the external bias pushing and modulation. In general, these oscillators are fixed. However, a small mechanical or electrical tuning range can be achieved by use of a self-locking screw or an integrated Varactor diode. The standard offering covers the frequency range of 2 to 40 GHz. While standard models are equipped with female SMA and K connectors at the RF port, other RF interface options are also available.

  • RF Conducted Immunity Test System

    RFCI61000-4-6 - Lisun Electronics Inc.

    RFCI61000-4-6 RF Conducted Immunity Test System is an automatic test system which is for the conduction sensitivity testing, it is fully meets IEC61000-4-6.2006, ISO11452-4, GB/T17626.6-2008 and GTB152B-CS114 etc standards. RFCI61000-4-6 internal source and broadband power amplifier can be generated 3 voltage test levels: 1v, 3v and 10v, and has the function of the real detect output level. It has two operation software which is calibration software and test software. When measuring, the signal is in 1 KHZ sine wave amplitude modulation system (80%) to simulate the actual harassment, and can through the coupling/decoupling network (CDN or electromagnetic clamp) to make the harassment signal coupled to the device.

  • PXIe-5673E, 6.6 GHz PXI Vector Signal Generator

    781263-01 - NI

    6.6 GHz PXI Vector Signal Generator—The PXIe‑5673E is a wide-bandwidth module that, when combined with the appropriate software, can generate a variety of signals. With the Modulation Toolkit for LabVIEW, it can generate different waveforms including AM, FM, CPM, ASK, FSK, MSK, PSK, QAM (4‑, 16‑, 64‑, and 256‑QAM), multitone signals, arbitrary waveforms, and many others. In addition, you can combine these vector signal generators with standard-specific software to generate signals for GPS, GSM/ EDGE/WCDMA, WLAN, WiMAX, DVB‑C/H/C, ISDB‑T, ZigBee, and others. With PXIe‑5673E stream‑from‑disk capabilities, you can generate continuous waveforms that are up to several terabytes in length.

  • PXIe-5673E, 6.6 GHz PXI Vector Signal Generator

    781340-03 - NI

    6.6 GHz PXI Vector Signal Generator—The PXIe‑5673E is a wide-bandwidth module that, when combined with the appropriate software, can generate a variety of signals. With the Modulation Toolkit for LabVIEW, it can generate different waveforms including AM, FM, CPM, ASK, FSK, MSK, PSK, QAM (4‑, 16‑, 64‑, and 256‑QAM), multitone signals, arbitrary waveforms, and many others. In addition, you can combine these vector signal generators with standard-specific software to generate signals for GPS, GSM/ EDGE/WCDMA, WLAN, WiMAX, DVB‑C/H/C, ISDB‑T, ZigBee, and others. With PXIe‑5673E stream‑from‑disk capabilities, you can generate continuous waveforms that are up to several terabytes in length.

  • PXIe-5673E, 6.6 GHz PXI Vector Signal Generator

    781263-03 - NI

    6.6 GHz PXI Vector Signal Generator—The PXIe‑5673E is a wide-bandwidth module that, when combined with the appropriate software, can generate a variety of signals. With the Modulation Toolkit for LabVIEW, it can generate different waveforms including AM, FM, CPM, ASK, FSK, MSK, PSK, QAM (4‑, 16‑, 64‑, and 256‑QAM), multitone signals, arbitrary waveforms, and many others. In addition, you can combine these vector signal generators with standard-specific software to generate signals for GPS, GSM/ EDGE/WCDMA, WLAN, WiMAX, DVB‑C/H/C, ISDB‑T, ZigBee, and others. With PXIe‑5673E stream‑from‑disk capabilities, you can generate continuous waveforms that are up to several terabytes in length.

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