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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: 376 - 383 of 383 items found.

  • Dual Channel Bit Synchronizer for Rates up to 45 Mbps

    LS-45-DB - Lumistar Inc.

    The Lumistar LS-45-DB Dual Channel Bit Synchronizer Daughterboard provides optimal reconstruction of a serial PCM data stream that has been corrupted by noise, phase jitter, amplitude modulation, or base line variations. The all-digitaldesign assures a high performance, consistent product, with excellent reliability and long-term stability. Dual channel design can feed each channel of the LS-55-DD dual decom. The LS-45-DB also has a post D combiner that allows for optimal ratiocombining of the two input signals A unique Built-in-Test feature allows performance verification for the Bit Synchronizer to ensure the highest level of operation. Auto-test BIT is performed for a short duration on the application of power and tests more than 90% of the Bit Synchronizer components. This test verifies that power is properly applied, verifies that there are no internal bit errors, and performs other tests to ensure that the bit synchronizer is fully operational with status indication of results. Command-test BIT performs the same functions and can be initiated by the user at any time through the Lumistar software when used on Lumistar PC products. The user has the ability to generate internal pseudo-random patterns and calculate internal bit error rates with or without the injection of forced errors.Various status indicators are also available through the software. The Bit Synchronizer also contains a BER reader as well as frame sync pattern indicator.

  • Reflection Meter

    RC-088 - Rinch Industrial Co.,Limited

    This instrument is a special equipment for measuring the reflectivity of rearview mirror (or similar product) of motor vehicle. The product composes intelligent measuring instruments, optical integrating sphere, parallel lamp, standard light source, constant current source etc. It is easy to operate,it can measure the reflectivity quickly and accurately. On instrument structure, it adopts standardized modulation design. It takes latest single chip as its digital central processing element. After the measuring signal is converted by modulus, CPU will do some computation and compensation. The instrument can display the reflectivity of device which is measured in rear time. It operates simply and quickly, the indication is direct and accurate. It’s good for quality examination &control in the production scene as well as laboratories. This product has the convenience &quick demarcation way, can meet requirement of different occasion. It is applicable for measuring light reflection on mirror and not mirror parts.

  • Counter/Timer Board

    USB-CTR-15 - Acces I/O Products, Inc.

    The USB-CTR-15 is an ideal solution for adding portable, easy-to-install, counter/timer capabilities to any PC or embedded system with a USB port. This board is packaged in a small, rugged, industrial enclosure and features 15 independent 16-bit counter/timers. The unit is a true USB 2.0 device, offering the highest speed available with the USB bus. It is fully compatible with both USB 1.1 and USB 2.0 ports. The unit is plug-and-play allowing quick connect/disconnect whenever you need additional counter/timer devices on your USB port. The USB-CTR-15 can be used for a wide variety of measurement applications including event counting, frequency measurements, position measurement, pulse counting, pulse-width modulation and pulse generation. The OEM version provides just the board without the enclosure or external screw terminal board and is ideal for a variety of embedded OEM applications.

  • SNR Noise Generator

    CNG-EbNo - Noisecom

    The CNG-EbNo is a fully automated precision signal to noise (AWGN) generator that sets, and maintains a highly accurate ratio between a user supplied carrier and internally generated noise, over a wide range of signal power levels and frequencies. The internal AWGN meter provides repeatable SNR waveforms for accurate signal generation. The instrument gives system, design, and test engineers in the telecommunications industry a single tool to generate precision signal to noise ratios. These signals are used to compare theoretical BER to SNR ratios, found in "waterfall" type graphs, with measured values from the DUT to evaluate different modulation schemes. Users can obtain higher yield through automated testing, plus increased confidence from repeatable, accurate test results. Standard units can be modified for specific customer requirements. Please consult the factory for pricing and availability of these requests.

  • Carrier Convergence Processors

    Macom Technology Solutions Holdings Inc.

    Macom offers a line of infrastructure voice processors, in concert with the carrier-grade Media Stream Processing software, that delivers a complete, integrated VoIP media, data and fax, signaling and control processing solution. Combined with powerful DSP cores with flexible packet processing engine and a rich set of interfaces, the processors support 256 to 640 channels of packet-TDM and packet-packet operation across the entire range of IP modulations, for VoIP and VoATM applications. A large suite of software packages for Wireline, Packet Cable, W-CDMA and CDMA2000 network applications are supported. Major applications include media gateways, session boarder controllers, wireless base transceiver stations and nod-Bs, base station controllers, radio network controllers, mobile switching centers, digital loop carriers, optical network terminals and optical line terminals for passive optical networks, digital subscriber line access multiplexers, class 4 and 5 switches, integrated access devices, IP private branch exchanges, ATM switches and IP routers.

  • Function Generators

    Shanghai MCP Corp

    Respective dual channels function/arbitrary waveform generator. Sine wave output up to 160MHz, full-band resolution of 1μHz. Pulse waveform up to 50MHz (or 40MHz), adjustable time of rising, falling and duty ratio. Sampling rate of 500MSa/s and vertical resolution of 16bit. 6-bit high-precision frequency meter compatible with TTL level signal. Arbitrary wave storage of 8~32M points, 7GB non-volatile waveform storage. Multi modulation function::AM,FM,PM, ASK,FSK,PSK, BPSK, QPSK,OSK,PWM, QAM, SUM . 16bit digital arbitrary wave (TTL level) DARB. 16th Harmonic Generation Function. Protocol output: I2C, SPI, UART (TTL level). 8 Inch high-resolution TFT color LCD,WVGA(800×480). Standard interface: USB Host, USB Device, LAN, 10MHz clock source input/output. Frequency sweep and burst output. Easy-to-use multi-functional knob and numeric keypad

  • PWM Type AC Power Supply

    LSP-5KVA - Lisun Electronics Inc.

    • Circuit Type: (IGBT) MPWM Pulse Duration Modulation • Input: 1 Phase 220V±10%, 50Hz/60Hz±5% • Output Voltage: HIGH/LOW Adjustable 1)1 Phase Voltage Range: (HIGH)0~300V, (LOW)0~150V 2) Nominal Voltage: +10%~+25%, -10%~-30% • Output Frequency: 50Hz, 60Hz, adjustable between 45 and 70 Hz, 400Hz • Load Voltage Stabilization Rate: ≦0.5% • Frequency Stabilization Rate: 0. 1% (Fix Point 50Hz, 60Hz and 400Hz) • Wave Distortion Rate: ≦2% (Resistor Load); Efficiency: ≧85% • Output Instruments: Frequency Indicator, 4-digits RMS digital frequency indicator, resolution is  0.1Hz Voltage Meter, 4-digits RMS digital voltage meter, resolution 0.1V Ampere Meter, 4-digist RMS digital ampere meter, resolution 1Ma Power Indicator, 4-digits RMS digital power indicator, resolution 1W Power Factor Meter  Resolution 0.001 • Protective Devices: Over load, short circuit, over voltage, over current, over temperature protective and alarm devices • Operating Environment: Temperature 0~40℃ Relative Humidity 0~90%

  • Power Phase Converter Single phase 220VAC to 3 phase 380VAC Converter

    SDT-40KW - Zhejiang Sandi Electric Co., Ltd

    SANDI SDT series single-phase to three-phase converter, adopted SVPWM modulation control technology, which can convert ordinary single-phase power to industrial three-phase power. After through SDT series single-phase to three phase converter power conversion, the three-phase power output is standard pure sine wave, the harmonic distortion rate (THD) is less than 2%, totally meet the national standards of three-phase power quality, applicable to all types of load.The SDT series single-phase to three-phase converter can solve production inconvenience because of some areas with the three-phase electric power restrictions, also solved some user requirements that can?謒?apply for the three-phase electric because of space limitation.Features1) Using the fifth generation efficient IPM intelligent module from Japanese Mitsubishi, high efficiency and stable performance. It with powerful protection function, the protection for short circuit, over load, over temperature is more safe and reliable. It's service life can up to 15 years or more.2) Two kinds of start mode: Reduction Voltage Start and Variable Frequency Start. Customers can set start mode according to the type of their load. This function is very convenient for users and also reduce frequency converter?謒?usage, which reduced the cost of equipment investment, easy to connect wires and control.3) Pure sine wave output with good transient response less than 50ms, waveform distortion is very little, higher conversion efficiency and stable output voltage.4) Adopted low frequency transformer which ensure the input voltage and output voltage are completely electrical isolated to avoid interference.5) Using SVPWM space vector algorithms, high conversion efficiency, high instantaneous power and low losses conversion efficiency up to 94%.6) Output AC Power is suitable for all types of electric appliances, electric tools, electric motors etc. higher capability of driving load.7) Converter has the function of filtering the grid disturbance and interference at the same time, which is a good performance of stabilized voltage and frequency power, to provide a more stable and pure power supply environment for the backend devices.8) Output perfect protection function, with output over-voltage, overload, short circuit, over temperature, self-diagnosis protection and other protection.9) High conversion efficiency, high instantaneous power and low load loss.10) The input voltage, output voltage, frequency and phase can be custom made.SpecificationModel SDT-40KWIsolation mode Low Frequency TransformerAC InputRated voltage (Vac) 240V single-phase 60HZVoltage range (Vac) 190-270VInput current (A) 167AAC OutputRated power (KW) 40KWRated voltage 240V ± 2%Output phases Three-phase with Neutral wires (L1, L2, L3 + N)Rated current (A) 96AOutput frequency 60Hz ±0.05 (50HZ can be set)Waveform Pure sine waveVoltage accuracy Load balancing≤1%、Unbalanced load≤5%Waveform distortion rate (THD) Linear load≤2%、Nonlinear load≤3%Dynamic Response 5%,≤50ms (load 0~100%)Power Factor (PF) 0.99Inverter Efficiency ≧85%Electrical insulation properties 2000Vac、1 MinuteProtection FunctionOverload Ability 150%、10sProtection Input under voltage, overvoltage, output over-current, short circuit, overheating etc.Display LCD+LEDMethod of working Working continuouslyCooling method Intelligent fan coolingShort-circuit protection No automatic recovery, need to restart the machineWorking Environment & Mechanical dimensionDegree of protection IP20 (indoor)Working Altitude(m) ≤3000mWorking temperature (℃) -20~+50℃Relative humidity (℃) -25~+85℃Noise (1 meter) ≤60dBReference size: (W x D x H) 750×750×1480mmReference net weight (Kg) 340Kg

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