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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: 331 - 345 of 387 items found.

  • Handheld Digital Multimeter, 4.5 digit, up to 800 hours battery life

    U1282A - Keysight Technologies

    60,000 counts resolution on dual display0.025% basic DC voltage accuracy Longer battery life up to 800 hours Certified to IP 67 for dust and water protection Tested to withstand a 3-meter (10-ft) drop Programmable via USB (Download Programming Guide here)CAT III 1000 V/ CAT IV 600 V overvoltage protection Vsense for non-contact voltage detection Square wave output for generating pulse width modulation (PWM) signal Frequency counter Low pass filter

  • Satellite Signal Monitoring, Reference Solution

    Keysight Technologies

    The Keysight Satellite Signal Monitoring, Reference Solution is a fast, effective solution for monitoring large blocks of spectrum combined with precise digital modulation analysis to validate satellite signal integrity up to 50 GHz. Built upon a modular instrument format (PXIe), its attributes include: excellent instrument density, expandable multi-channel support, and high data bus speeds, ideal for multi-band monitoring. To provide flexibility, a choice of vector signal analyzers (M9391A and M9393A) is available to tailor the system frequency ranges as needed.

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

    781262-01 - NI

    PXI Vector Signal Generators offer custom and standard modulation, as well as the ability to generate communications standards formats such as GPS, WCDMA, DVB-H, and more. They support quadrature digital upconversion, which reduces waveform download and signal generation time, as well as stream-to-disk capabilities. The power and flexibility of PXI Vector Signal Generators make them ideal for use in scientific research, communications, consumer electronics, aerospace/defense, and semiconductor test applications as well as for areas such as software-defined radio, radio-frequency identification (RFID), and wireless sensor networks.

  • Bi-Phase Modulators

    Quantic PMI

    PMI's line of Bi-Phase Modulators includes a comprehensive selection of different models which cover broad octave frequency bands ranging from 0.5 to 40 GHz. Bi-phase modulators take a TTL level digital bits stream that’s encoded onto the RF carrier using 2 Phase Shift Keying (2PSK) modulation, where the 2 phases are separated by 180º. This performance is desirable in communications systems, microwave radio, radar, high data rate test & measurement, serial data transmission, base station infrastructure, and other industrial and military applications.

  • Optical Transmitter

    ST1550E - Hangzhou Softel Optic Co., Ltd.

    SFT1550E is a high performance external modulation 1550nm Optic transmitter with a high quality LiNbO3 external modulator and a high power, narrow bandwidth, low noise DFB laser. It adopts a series of unique innovation technique to reach the excellent system control. With 47~862Mhz bandwidth, CNR≥53dB, CTB≤-65dB, CSO≤-65dB, SBS: 13, 16, 18adjustable, it can make CA TV network transmit video, audio and data with high performance. The machine can is equipped with perfect RS232 communication interface, SNMP network management and 1+1 backup power supply .

  • TimerBlox

    Analog Devices Inc.

    Analog Devices TimerBlox parts are small, accurate, and simple timing devices designed for six basic operations: voltage controlled oscillation (VCO), low frequency clocking, pulse-width modulation (PWM), one-shot generation and signal delay, and power-on reset (POR). TimerBlox devices combine an accurate programmable oscillator with precision circuitry and logic. No capacitors, no crystals, no microcontroller, and no programming are required. A 20 mA source and sink capability enables the devices to directly drive opto-isolators and transformers for electrical isolation. An ideal solution for space-limited applications, each TimerBlox device can be placed at the point of use.

  • SLED Source Driver

    S-108 - Notice

    SLED Source & Driver slot module of FOTS system is an efficient module that can drive a stable high power broadband source and modulate a high power SLED to output a high bit rate optical signal. As a high power broadband SLED source, this module can drive the maximum output power of more than 14 dBm and has a stable wideband source characteristics of >90nm@-20dBm/nm. As a high current (400mA) modulation technique, it shows a high power and high bit rate digital signal of > 155 Mbps with > 13 dBm peak power.

  • Terminal Power Meter

    TPM-50A - ShinewayTech

    ShinewayTech@ TPM-50A Terminal Power meter can test (1) Average power range: -40 dBm~+20 dBm;(3) Modulation bandwidth: 5MHz;(3) Continuous signal and burst signal test. Highly accurate power measurement CW and digital modulated signal (For example: GSM/EDGE, CDMA/EV-DO, WCDMA/HSDPA, WiMAX, and TD-SCDMA). It is very important to test that if the transmitter is at a specified level or not. For example, the tester needs to test the output power of base station. Because the lower output power produces the larger coverage area to cause call interruption.

  • NI-5781 , 40 MHz Bandwidth, RF Adapter Module for FlexRIO

    781267-01 - NI

    The NI‑5781 is an analog dual-input, dual-output FlexRIO adapter module optimized for interfacing with baseband to RF upconverters and downconverters. When you pair the NI‑5781 with a PXI FPGA Module for FlexRIO, the resulting NI‑5781R is an FPGA-enabled reconfigurable I/O (RIO) baseband transceiver that you can use to implement custom RF modulation and demodulation, channel emulation, bit error rate testing, or spectral monitoring and jamming. Additionally, you can use the low latency and high throughput of FPGA‑based processing for ultra‑high‑speed control and inline processing applications.

  • Soft Front Panel for NI RF Generators

    NI RFSG Soft Front Panel - NI

    The NI RFSG Soft Front Panel helps you quickly generate RF continuous wave (CW) or modulated signals. It works with the NI PXIe-5644R/5645R/5646R vector signal transceivers (VSTs) and NI 567x vector signal generators (VSGs). You can open multiple instances for multiple instruments in a system. In addition, you can load I/Q waveforms, save and recall setups, preview data that is loaded onto the VSG, and sweep levels or frequencies using RF list mode. The soft front panel also features built-in modulation schemes such as AM, FM, and PM.

  • Spectrum & Vector Analyzer

    SVA1000X Series - SIGLENT Technologies

    The SIGLENT SVA1000X series spectrum & vector network analyzers are powerful and flexible tools for broadcast and RF device testing. With a wide frequency range from 9 kHz to 1.5 GHz, the analyzer delivers reliable automatic measurements and plenty of features including a tracking generator and multiple modes of operation: the base model is a swept super-heterodyne spectrum analyzer and optional functions include a vector network analyzer, a Frequency Domain Reflectometer based distance-to-fault locator, and a modulation analyzer. Applications include broadcast monitoring/evaluation, site surveying, EMI pre-compliance, research and development, education, production and maintenance.

  • Non-RMS Responding Power Detectors

    Analog Devices Inc.

    Recognized as the pioneer and leader in RF detectors, Analog Devices offers a broad portfolio of high performance logarithmic amplifiers and TruPwr™ rms detectors. ADI logarithmic amplifiers measure signals up to 100 dB dynamic range, from dc to microwave, and accuracies of ±0.2 dB, and are well-suited for both RSSI and transmit power level detection. The TruPwr rms detectors address the challenge of measuring complex waveforms found in spread spectrum CDMA/W-CDMA and higher order QAM modulation systems and provide an accurately scaled dc voltage, which is the rms equivalent of the input waveform.

  • RMS Responding Power Detectors

    Analog Devices Inc.

    Recognized as the pioneer and leader in RF detectors, Analog Devices offers a broad portfolio of high performance logarithmic amplifiers and TruPwr™ rms responding detectors. ADI logarithmic amplifiers measure signals up to 100 dB dynamic range, from dc to microwave, and accuracies of ±0.2 dB, and are well-suited for both RSSI and transmit power level detection. The TruPwr rms detectors address the challenge of measuring complex waveforms found in spread spectrum CDMA/W-CDMA and higher order QAM modulation systems and provide an accurately scaled dc voltage, which is the rms equivalent of the input waveform.

  • SLED Optical Source

    JW8006 Series - Shanghai Joinwit optoelectronic Tech,co.,Ltd

    SLED(Super luminescent light-emitting diode) is a super broadband optical source which is designed for fiber sensor;, optical fiber gyroscope, lab application field. It has the feature as broaden bandwidth, customizable center wave length, high output power, etc. Benchtop (for lab), standard module(150*125*20mm, with modulation function) and mini module(90*70*15mm) is available. The key component is employed the FWHM bandwidth up to 40nm high power SLEDs to ensure the spectrum performance. Stability is ensured by unique ATC and APC circuit. The output power is adjustable by RS232 or RS485 port.

  • Synthesized Clock Generator

    CG635 - Stanford Research Systems, Inc.

    The CG635 generates extremely stable square wave clocks between 1 µHz and 2.05 GHz. The instrument''s high frequency resolution, low jitter, fast transition times, and flexible output levels make it ideal for use in the development and testing of virtually any digital component, system or network. Clocks from 1 µHz to 2.05 GHz. Random jitter <1 ps rms. 16 digits of frequency resolution. 80 ps rise and fall times. CMOS, PECL, ECL, LVDS & RS-485. Phase control and time modulation. PRBS for eye-pattern testing. OCXO and rubidium timebase.

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