Showing results: 286 - 300 of 387 items found.
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Optoplex Corporation
Optical differential-phase shift keying (DPSK) provides a desired modulation format that offers high receiver sensitivity, high tolerance to major nonlinear effects in high-speed transmissions, and high tolerance to coherent crosstalk. In DPSK, data information is carried by the optical phase difference between adjacent bits. For direct detection of DPSK signal (by conventional intensity detectors), a DPSK demodulator is needed to convert the phase-coded signal into an intensity-coded signal.
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E9320 Series -
Keysight Technologies
- Operates with the EPM-P series and P-Series power meters- 300 kHz, 1.5 MHz and 5 MHz video (modulation) bandwidths- Provides peak and average power measurements- Calibration factors stored in EEPROM- Fast measurement speed over the GPIB (up to 1,000 readings per second)- Two frequency ranges: 50 MHz to 6 GHz, and 50 MHz to 18 GHz- Wide dynamic range sensors
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Rigol Technologies Inc.
The RF signal source mainly acts as a stable local oscillator signal in the test, or generates various types of modulated signals, and the two-tone signal is used for signal excitation, receiving sensitivity testing and other applications. When choosing the RF signal source, the frequency range of the signal output, power requirement size, modulation type, frequency stability, amplitude accuracy and many other factors needs to be considered.
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B9428 -
Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai B9428 product series, 47~862MHz operate bandwidth, output level Vo=88dBμV ( Pin=-2dBm ), suitable for FTTP optical fiber access network, which is a low power consumption, high performance, and excellent cost performance RFTV broadcast network ONU(Optical network unit). This series of product adopts high sensitivity receiving tube and Huatai special low noise matching circuit Under 3.8% modulation, when transmitting in full channels and with receiving power of -10dBm, the CNR can still reach high index of 45dB. Therefore, if adopting B9428, it is only need very low optical power to reach 45dB CNR required by the user.
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HT8500T -
Hangzhou Huatai Optic Tech. Co., Ltd.
RFTV is a unidirectional analogue and digital video broadcast. It adopts high efficiency modulation mode for RF carrier wave and its economical efficiency, flexibility and bandwidth validity is beyond comparison of IPTV. By adopting EPON, GEPON or P2P access mode to realize triple-play and FTTx, RFTV broadcasting network in 1550nm optical wavelength still plays an important role and 1550nm externally modulated optic transmitter is the core equipment in this system.
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EXFO Inc.
In lab and manufacturing environments, R&D engineers require scalable and optimized test solutions to enable them to properly characterize new advanced modulation scheme signals for next-generation, ultra-high-speed telecom networks. Through EXFO’s optical communication analyzers, R&D engineers and manufacturing operations involved in the development or production of transmitters or systems based on new high-speed technology will find the right tools for their advanced technology needs.
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Kuhne electronic GmbH
. Internal filters provide high spurious rejection and image rejection. Due to low phase noise and high frequency stability of the local oscillator at 3000 MHz, the up converter is suitable for analog and digital communication systems.Typical applications are Multichannel Multipoint Distribution Systems (MMDS) using QPSK modulation and DVB?T or DVB?S systems. The output power of 20 mW can be increased to several watts by the use of an additional power amplifier.
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HT8500H -
Hangzhou Huatai Optic Tech. Co., Ltd.
1550nm externally modulated optical transmitter is the core equipment in the RFTV network system.RFTV is a unidirectional analogue and digital video broadcast. It adopts high efficiency modulation mode for RF carrier wave and its economy , flexibility and bandwidth validity is beyond comparison of IPTV. By adopting EPON, GEPON or P2P access mode to realize triple-play and FTTx, RFTV broadcasting network in 1550nm optical wavelength still plays an important role.
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M9381A -
Keysight Technologies
Choose your RF modulation bandwidth, 40, 100, or 160 MHz, and easily upgrade as test needs change Increase throughput with fastest RF frequency tuning and amplitude switching for high-speed automated test Save space with a compact solution for up to 8x8 MIMO with phase coherence Get up and running quickly with validated application-specific reference solutions Simplify signal creation with Keysight's Signal Studio and Waveform Creator
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E8663D -
Keysight Technologies
Tackle demanding radar & satcom measurements with metrology-grade performance, including high output power & superior level accuracyUse as an ideal reference in phase noise test systems or for analog-to-digital converter testing with the lowest phase noise in a commercial sourceCharacterize devices & circuits by adding AM, FM, M & pulse modulation to your signalImprove existing test system performance: E8663D is built on the outstanding legacy of the 8663A & is fully code compatible
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HDS-55A ( 47~862 & 950~5500MHz ) -
Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HDS-55A series 1550nm wide band micro-wave internal modulation optical transmitter, HDS-55A's working bandwidth covering range is 47~862 & 950~5500MHz. It can transmit multi (stacker) 4-way SAT-IF signal and CATV signal by a fiber, to realize one satellite-four polarization-4 way SAT-IF signal of 950~5500MHz (or different satellite 4 way SAT-IF signal), and 47~862 MHz CATV signal, all replacement a fiber to transmit. Users can simultaneously receive all full TV contents of satellite video carried and CATV's analog digital TV. It can provide high quality satellite TV and CATV service up to 3000 SDTV or 600 HDTV channel.
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N7509A -
Keysight Technologies
The Waveform Generation Tool provides a simplified interface for baseband modulation of Keysight's wide bandwidth signal simulation solutions, for signals with up to 1 GHz RF bandwidth. Even the most complex signals are defined and implemented easily through the software interface. Signals can be defined through basic parameter entry or from files created in MATLAB or other engineering environments. For each selection in the main menu, a subsequent screen appears, enabling the user to enter the parameters required to define the waveform and invoke the built-in calibration routines. A display on each sub-panel shows the ideal frequency domain waveform calculated from entered parameters. A simulation mode is provided to enable development and operation without connection to the instrument hardware.
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GT668PXIe -
Guide Technology, Inc.
GuideTech’s GT668PXIe PXI 3U form factor, meets industrial standard chassis with an expandable platform, achieving optimal test system at low cost. High accuracy 100MHz time base with NIST traceable calibration. Some of the GT668PXIe-1 measurements include Jitter measurements, PLL & Clock Jitter, Spread Spectrum Modulation, PLL Lock Time, Frequency, Period, Pulse Width, Skew, Tpd, Rise/Fall Time, Time Interval Error and more.
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OPSA-150 -
HORIBA, Ltd.
The OPSA-150 is a organic pollutant monitor that uses HORIBA's proprietary Rotary Cell Length Modulation, a measuring technique incorporating 25 years of expertise. The unit can be used as an organic pollutant monitor at drainage systems for determining compliance with COD monitoring regulations, for monitoring quality of water measuring levels of organic matter at water supply intakes, and as an organic monitor on process lines (phenol meter).*Pole mount, outdoor cover, and analysis panel are available as options.
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ADCS -
Matrix Test Equipment Incorporated
The Automated Distortion Characterization and Information System (ADCS) is an extension of the Matrix equipment control software that automatically makes RF measurements selected from the following: Cross Modulation (XMOD), Composite Triple Beat (CTB), Composite Second Order (CSO), Carrier to Noise (C/N), Discrete Second Order, Discrete Third Order Distortion. Measurements are made, and the test results and a profile describing the test conditions are saved in a database for later retrieval or reporting.