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Phase Noise

Random variations of a signal's frequency.


Showing results: 241 - 255 of 255 items found.

  • Low Cost Microwave Wideband PIN Preamp Receivers

    MR21 (40KHz~18GHz) - Hangzhou Huatai Optic Tech. Co., Ltd.

    MR21 series microwave wideband optical receiver, adopts High linear PIN diode and Low noise pre-amplifier IC, within bandwidth of 40KHz~18GHz, they are featured with excellent linearity, high responsibility and superior flatness of the RF response in both, power and phase. They provide an outstanding linearity fiber optical communication for analogue wideband microwave application. Due to avoidance of using expensive coaxial cable or wave guide, there will be no limitation in transmission distance, which improves the signal quality and reliability of the microwave communication. They can be widely applied in microwave communication system such as remote wireless, timing and reference signal distribution, telemetry, measurement and delay line etc as well as 10Gb/s and 18Gb/s high speed communication system.

  • Low Cost Microwave Wideband APD Preamp Receivers

    MR11 (40KHz~18GHz) - Hangzhou Huatai Optic Tech. Co., Ltd.

    MR11 series microwave wideband optical receiver, adopts high Sensitivity APD diode and Low Noise Preamplifier IC, within bandwidth of 40KHz~18GHz, they are featured with excellent linearity, high responsibility and superior flatness of the RF response in both, power and phase. They provide an outstanding linearity fiber optical communication for analogue wideband microwave application. Due to avoidance of using expensive coaxial cable or wave-guide, there will be no limitation in transmission distance, which improves the signal quality and reliability of the microwave communication. They can be widely applied in microwave communication system such as remote wireless, timing and reference signal distribution, telemetry, measurement and delay line etc as well as 10Gb/s high speed communication system.

  • sbRIO-9237, Non-Enclosed, 50 kS/s/channel, Bridge Analog Input, 4-Channel C Series Strain/Bridge Input Module

    781209-01 - NI

    Non-Enclosed, 50 kS/s/channel, Bridge Analog Input, 4-Channel C Series Strain/Bridge Input Module - The sbRIO‑9237 includes all the signal conditioning required to power and measure up to four bridge-based sensors simultaneously. The module provides strain or load measurements with zero interchannel phase delay. It also has 60 VDC isolation and 1,000 Vrms transient isolation, providing high‑common‑mode noise rejection and increased safety. You can program the sbRIO‑9237 for use with half-bridge and full-bridge sensors with built-in excitation. The four RJ50 jacks provide direct connectivity to most torque or load cells and offer custom cable solutions with minimal tools. Non-enclosed modules are designed for OEM applications.

  • sbRIO-9237, Non-Enclosed, 50 kS/s/channel, Bridge Analog Input, 4-Channel C Series Strain/Bridge Input Module

    781028-01 - NI

    Non-Enclosed, 50 kS/s/channel, Bridge Analog Input, 4-Channel C Series Strain/Bridge Input Module - The sbRIO‑9237 includes all the signal conditioning required to power and measure up to four bridge-based sensors simultaneously. The module provides strain or load measurements with zero interchannel phase delay. It also has 60 VDC isolation and 1,000 Vrms transient isolation, providing high‑common‑mode noise rejection and increased safety. You can program the sbRIO‑9237 for use with half-bridge and full-bridge sensors with built-in excitation. The four RJ50 jacks provide direct connectivity to most torque or load cells and offer custom cable solutions with minimal tools. Non-enclosed modules are designed for OEM applications.

  • Audio Test Software

    Soft Hearts LLC

    1. Distortion free stimulus even the equalized stimulus.2. Unlimited channels acquisition and processing. (Hardware limited)3. Human correlated listening test(Bark Scale intensity chart). (Requires large memory)4. Hi Res intensity chart for buzz/pop detection. (Requires large memory)5. Auto equalization method with target dBSPL accuracy.6. TCP client for test framework integration.7. Easy limits and logs development.8. Easy logs visualization module.9. Auto waveform alignment and triggering.(Upto single point alignment accuracy)10. Easy regression testing via TCP client.11. Standard Magnitude, Phase, THD, THD+N, Rubb&Buzz, Pink Noise, Noise Tests.12. Unlimited calibrations and equalization for scaling to different products and stations.13. Lowest test system and test sequence development times.14. Requires minimal training and debugging.15. Automatically avoid Reference speaker play and stop pops.16. WMD/ASIO driver compatible sound cards supported.(B&K 3670 recommended)

  • Network Analyzer

    DPNA-6G AXIe - Holding Informtest

    The AXI DPNA-6G module is the world's first network analyzer in the form factor of the AXIe-1 module, as well as the first Russian device that meets the AXIe-1 standard. In the mode of the network parameters meter, the AXI DPNA-6G module measures the vector values ​​of the network parameters on two ports: transmission coefficients (S12, S21) and reflection (S11, S22). At the same time, all necessary types of calibrations are supported: one- and two-port short-circuit, XX, matched load, transmission normalization. The software supports the import of third party calibration standard parameters. In the measuring receiver mode, the module provides:*generation of a harmonic signal (frequency synthesizer);*spectrum analyzer and power level in a given band;*measuring the frequency of a known signal;*measurement of analog modulation parameters;*phase noise measurement.

  • SDC-C Series Microwave Downconverter

    SDC-C - Saluki Technology Inc.

    SDC-C Series Microwave downconverter is a broadband frequency converter that is dedicated for satellite communication. It has a high performance, high reliability and an octave covered by RF signal. Its frequency step is precise and accurate to 1Hz with a variety of IF and signal bandwidth choices. SDC-C series is equipped with functions like self-testing and combination alarm which is suitable for long-time uninterrupted use, guaranteed safety and reliability.SDC-C series microwave downconverter is mainly designed for satellite communication system, signal monitoring system, and electronic countermeasure system with an excellent phase noise, clutter suppression, and in-band flatness data. It is able to provide a transparent RF transmission channel to all videos or data communications. All programming commands can be set through a local panel or through network remotely. SDC-C series microwave downconverter has a standard 2U size.Applications: T&M Systems / Satellite Communications / MIMO

  • SUC-C Series Microwave Upconverter

    SUC-C - Saluki Technology Inc.

    SUC-C Series Microwave Upconverter is a broadband frequency converter that is dedicated for satellite communication. It has a high performance, high reliability and an octave covered by RF signal. Its frequency step is precise and accurate to 1Hz with a variety of IF and signal bandwidth choices. SUC-C series is equipped with functions like self-testing and combination alarm which is suitable for long-time uninterrupted use, guaranteed safety and reliability.SUC-C series microwave upconverter is mainly designed for satellite communication system, signal monitoring system, and electronic countermeasure system with an excellent phase noise, clutter suppression, and in-band flatness data. It is able to provide a transparent RF transmission channel to all videos or data communications. All programming commands can be set through a local panel or through network remotely. SUC-C series microwave upconverter has a standard 2U size.Applications: T&M Systems / Satellite Communications / MIMO

  • Dual-Channel Precision Audio Analyzer with Built-In Condenser Measurement Mics

    PAA6 - Phonic Corporation

    Essential tools, such as the Phonic PAA6 Professional Audio Assistant generally wind up at the bottom of pro audio wishlists after esoteric preamps, compressors, and EQs. But more often than not, the key to great sound lies in the utilitarian gear, particularly, the Phonic PAA6 audio analyzer. If you want to get the most out of your studio equipment or PA system, the PAA6 should be at the top of your bucket list. A highly accurate measurement tool, the elegant touch screen interface of the PAA6 offers unfettered access to 61-band real-time spectrum analysis; Fast Fourier Transform (FFT); sound pressure (SPL) and dBu/dBV line voltage measurement; EQ setting; phase and polarity check; LEQ (equivalent continuous noise level); audio oscilloscope; and RT-60 functions. The PAA6 also has two built-in condenser measurement mics that can be used in six different positions. If sound is your product or passion, the Phonic PAA6 is perhaps the wisest investment you can make for your studio or sound reproduction system. Whether you're setting up monitors, treating room characteristics, calibrating listening levels, or want to know the harmonic distortion and noise characteristics of your workhorse preamps to ensure clean mixes, the Phonic PAA6 is your key to the best possible quality sound.

  • Rack-Mounted Timing Systems

    CommSync II Family - FEI-Zyfer Inc.

    The CommSync II family of modular systems provide GPS time and frequency outputs to meet your synchronization requirements. All systems include support for multiple input and output modules including 1PPS, IRIG, HAVE QUICK, PTTI, IEEE-1588 PTPv2, low phase noise 1, 5, and 10 MHz sine wave as well as custom outputs.These systems are available with military SAASM MPE-S GB-GRAM, SAASM Force 22E MRU or civilian C/A GPS receivers. Rubidium or OCXO oscillators provide for excellent holdover performance in the event of failure of the reference inputs. In addition, they may be configured as Distribution Time and Frequency (DTF) systems that are synchronized by an external reference. Dual Redundant systems (CommSync II & CommSync II-D) may be configured with two GPS Time & Frequency (GTF) modules and two power supply modules (AC and/or DC power) for redundancy with uninterrupted automatic switchover.

  • PXIe-5841, 6 GHz, 1 GHz Bandwidth, RF PXI Vector Signal Transceiver

    785832-01 - NI

    6 GHz, 1 GHz Bandwidth, RF PXI Vector Signal Transceiver - The PXIe-5841 is a vector signal transceiver (VST) with 1 GHz of instantaneous bandwidth. It combines vector signal generator, vector signal analyzer and high-speed serial interface capabilities with FPGA-based real-time signal processing and control. The PXIe-5841 features the flexibility of a software defined radio architecture with RF instrument class performance. This VST delivers the fast measurement speed and small form factor of a production test box with the flexibility and high performance of R&D-grade box instruments. The PXIe-5841 is available with an optional high-performance local oscillator module for improved phase noise, measurement time, and EVM performance. You can use the VST to test a variety of cellular and wireless standards such as Wi-Fi 6 and 5G NR. In addition, you can expand the small, two slot 2U PXI Express form factor to support multiple input, multiple output (MIMO) configurations.

  • PXIe-5841, 6 GHz, 1 GHz Bandwidth, RF PXI Vector Signal Transceiver

    786982-01 - NI

    6 GHz, 1 GHz Bandwidth, RF PXI Vector Signal Transceiver - The PXIe-5841 is a vector signal transceiver (VST) with 1 GHz of instantaneous bandwidth. It combines vector signal generator, vector signal analyzer and high-speed serial interface capabilities with FPGA-based real-time signal processing and control. The PXIe-5841 features the flexibility of a software defined radio architecture with RF instrument class performance. This VST delivers the fast measurement speed and small form factor of a production test box with the flexibility and high performance of R&D-grade box instruments. The PXIe-5841 is available with an optional high-performance local oscillator module for improved phase noise, measurement time, and EVM performance. You can use the VST to test a variety of cellular and wireless standards such as Wi-Fi 6 and 5G NR. In addition, you can expand the small, two slot 2U PXI Express form factor to support multiple input, multiple output (MIMO) configurations.

  • 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.

  • 40kw High Efficiency AC/DC Power Supply Charger 100-750VDC Charging Rectifier 100A Battery Charger

    SD750100G - Zhejiang Sandi Electric Co., Ltd

    40kw High Efficiency AC/DC Power Supply Charger 100-750VDC Charging Rectifier 100A Battery Charger is for DC battery system charging station. With three-phase non neutral conductor AC input, it has the advantages of high efficiency, high power density and low harmonic. 50-500Vdc output voltage range optional, suitable for all types of batteries.FeaturesProduct Introduction:SAND AC/DC Charger is specially developed for DC chargers module. It has high efficiency, high power factor, high power density, high reliability advantage. AC input 3 phase or single phase, DC output voltage range from 100 to 750VDC can be set, compliant with CE safety requirements, EMC standard EN61000-6-3 and EN61000-6-1 Class A, it is an advanced international level charger module.Unique function:● High efficiency over the full load range, full load efficiency greater than 95.5%● Wide output voltage range, 100-750VDC, suitable for a wide range of Lithium and lead acid battery● 5-inch LCD touch screen, easy to operate● Flexible application, charging voltage, charging current, charging time, timing charging can be set by LCD screen, easy to operateMain features:● Powerful protection, overheating, short circuit, overload, overvoltage, undervoltage, etc.● Three phase active power factor correction technology, reduces the harmonic interference to the grid● Dual DSP design, achieve the full digital control, less components means high reliability● Wide input voltage range, allows operation in most poor grid conditions● Soft start charging and soft shutdown minimize the impact on the battery.● Input, output have protective circuit breaker switch● Module adopts hot pluggable design, which is convenient for maintenance.● CAN/RS485 interface (Optional)SpecificationModel SD750100GAC input Input system Three phases + PEVoltage range 280Vac ~500VacRated voltage 440VacFrequency range 50Hz/60HzMaximum current <74AITHD (total harmonic distortion) <5%DC output Output power 40KWVoltage range 50-750Vdc ( can set)Constant power output voltage range 400Vdc-750VdcOutput current range (A) 100A ( 1~100A can set)Output current limit 1-100A continuously adjustableSteady voltage precision <±0.5%Steady current precision ≤±1% (rated range of 20% ~ 100% for output load)Load regulation rate ≤±0.5%Startup overshoot ≤±3%Peak-to-peak value noise ≤1% (200~1000V, 0~20MHz)Display Indication Light Green LED: normal operation,Yellow LED: alarm, Red LED: failureDisplay language EnglishDisplay 5’ LCD touch screenPower factor and THD Power factor ≥0.90 Full-load output power of @20%~50%≥0.98 Full-load output power of @50%~100%≥0.99 Full-load output power, input nominal voltage and frequency of @100%THD ≤5% Full-load output power of @50%~100%Protection function input overvoltage Protection Over Under Voltage automatic shutdown and restart when voltage return normalOutput overvoltage protection Over Under Voltage automatic shutdown and restart when voltage return normalOver-temperature protection Automatic shutdown. Automatic restart when the temperature return to normalShort circuit protection Automatic shutdown and lock, need power off to restart to unlockEfficiency Under Rated input voltage ≥95.2%

  • 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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