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Frequency Standards

Devices that produce a known frequency.

See Also: Hydrogen Frequency Standards, Rubidium Standards, GPS Clocks


Showing results: 361 - 375 of 482 items found.

  • 94dB Sound Calibrator - 1kHz Professional Calibrator for 0.5" or 1.0" Microphones

    Extech 407744 - Extech Instruments Corporation

    This 1kHz, 94dB professional sound calibrator for 0.5" or 1.0" microphones calibrates and verifies sound level meter operation. Battery test position with battery status LED indicates if battery is good. Durable die-cast aluminum housing generates a 1kHz sine wave at 94dB to an accuracy of 5% (frequency) and ±0.5dB (94dB). Meets IEC standard 60942 1997-11. Complete with two 9V batteries, carrying case, and screwdriver.

  • Programmable AC Power Source

    Model 8600 Series - Aplab Limited

    - Compact size and light weight, standard 19″ rack construction- Step-less frequency setting from 45 to 450Hz- Very low distortion sine wave output- Output voltage range selectable 135 or 270V AC- Galvanically isolated input/output- Independent on/off switch for input and output- 16×2 vacuum florescent display for parameter display- Complete operation through push switches and a digital rotary encoder- Automatic protection against overload, short circuit and over temp.- Built in PFC to provide 0.99 input power factor and wide input range- Conforms to EN55022, class A, safety standard EN60950

  • MEGA-POLE® Series

    MEGA-POLE™ - Pole/Zero

    The MEGA-POLE filter series covers the standard frequency bands within the 30 to 450 MHz range. This new filter series provides excellent selectivity while maintaining very low insertion loss. The product line also has exceptional RF power handling capability with a high third order intercept point. The MEGA-POLE filter series can be used for transmitter applications to reduce power amplifier noise, harmonics and intermodulation products, to provide bi-directional filtering directly at a transceiver’s antenna port, or other applications requiring extremely linear, high power RF bandpass filtering. It has been designed for rugged military environments per MIL-STD-810.

  • Temperature & Process Calibrators

    GAO Tek Inc.

    The most sophisticated industrial equipment will not be useful unless it is calibrated. GAOTek Process Calibrators are used to adjust instruments’ accuracy, and they are the only process calibrator you will ever need to carry. They can measure temperature, pressure, voltage, resistance and frequency, and can be used during troubleshooting. Through calibration, you can ensure that any equipment performs as expected and that it can be relied on to deliver predictable and accurate results that meet quality standards. GAOTek Process Calibrators come with a USB interface which makes it easier to transfer the results to other devices which otherwise would have taken a long time to transcribe them. Our Process Calibrators are for sale to the United States, Canada and globally.

  • Single-Zone Refrigerant Monitor

    Bacharach, Inc.

    Bacharach’s Single-Zone Refrigerant Monitor delivers the best refrigerant leak detection available, with industry-leading MDL of 1ppm for halogenated gases, the fastest sampling frequency and the widest range of refrigerants accurately detected. The Single-Zone is the ideal tool for early detection of leaks from specific target areas such as chiller rooms and mechanical rooms. The low MDL enables detection of leaks that other instruments can’t find; enhances effective refrigerant management and compliance with refrigeration standards and regulations that require refrigerant emissions reduction such as EPA Section 608, CARB, and European F-Gas compliance. The Single-Zone Refrigerant Monitor delivers cost savings through reduced refrigerant recharge and enhanced energy efficiency.

  • MIPI Radio Front-End

    RFFE - Arasan Chip Systems, Inc.

    Mobile phone radios have developed into highly complex, multi-band and multi-standard designs that often have multiple radio frequency (RF) signal chains. The MIPI Alliance Specification for RF Front-End Control Interface (RFFE) was developed to offer a common and widespread method for controlling RF front-end devices. The RFFE Master IP core typically resides in the RFIC in a mobile platform, and utilizes the RFFE bus to identify, program and monitor the registers in RF front end Slave devices through programmed IO. It is designed to support existing standards such as LTE, UMTS, HSPA and EGPRS, and is usable in configurations ranging from single Master/single Slave to multi-Master/multi-Slave.

  • Automatic Circuit Breaker Tester

    GDGK-306 - Chongqing Gold Mechanical & Electrical Equipment Co.,Ltd

    1) Test standard: IEC622712) Closing and opening time measurement of 12 channels3) Max difference of closing or opening time measurement of three phases4) C-O and O-C time measurement5) Rated operation sequence test6) Bounce time and frequency measurement of breaker closing7) Circuit breaker closing and opening speed measurement8) Travel-time, Coil current-time curve of circuit breaker operation measurement9) Travel and clearance of circuit breaker measurement10) Variable DC circuit breaker operation power supply11) Closing arc resistance value and connected time measurement12) Closing time and opening time of graphite circuit breaker measurement13) Print test results by internal micro printers

  • Non-Contact H.V. Detector

    381 HP - Standard Electric Works Co., Ltd

    ● Protection class : IP65.● 7 voltage settings : 120V, 4kV, 15kV, 25kV, 35kV, 46kV, 69kV● Bright LED visual indication● Vibration function● Frequency range : 40~70Hz● Audible indication● Easy-to-prove method● Power source: 9V alkaline battery ● Non-contact detection by proximity● Compatible with most hot sticks● Lightweight, robust & compact● Special ranges are available upon request● Flashlight function● Safety standard : EN 61326-1   CISPR 11● Operating temperature and humidity :      0°C ~ 40°C / 80% R.H. Max. ● Dimensions : 262(L) × 85(W) × 56(D)mm● Weight: Approx. 345g

  • Non-Contact H.V. Detector

    380 HP - Standard Electric Works Co., Ltd

    ● Protection class : IP65.● 7 voltage settings : 120V, 4kV, 15kV, 25kV, 35kV, 46kV, 69kV●  Bright LED visual indication●  Vibration function●  Frequency range: 40~70Hz●  Audible indication●  Easy-to-prove method●  Power source : 9V rechargeable battery● Can be charged with the automotive● Non-contact detection by proximity● Compatible with most hot sticks● Lightweight, robust & compact● Special ranges are available upon request● Flashlight function● Safety standard :  EN 61326-1   CISPR 11● Operating temperature and humidity : 0°C ~ 40°C / 80% R.H. Max. ● Dimensions: 262(L) × 85(W) × 56(D)mm● Weight: Approx. 330g

  • PXIe-5451, 145 MHz, 16-Bit, 512 MB, PXI Waveform Generator

    781204-02 - NI

    PXIe, 145 MHz, 16-Bit, 512 MB, PXI Waveform Generator—The PXIe‑5451 is a 145 MHz, dual‐channel arbitrary waveform generator capable of generating user-definied waveforms, standard functions, and I/Q communications signals. It is an ideal instrument for including in systems for testing devices with I/Q inputs, or as the baseband component of an RF vector signal generator as wells as time-domain signals like envelope tracking. The PXIe‑5451 also features onboard signal processing (OSP) functions that include pulse shaping and interpolation filters, gain and offset control, and a numerically controlled oscillator (NCO) for frequency shifting. The PXIe‑5451 also features advanced synchronization and data streaming capabilities.

  • PXIe-5451, 145 MHz, 16-Bit, 128 MB, PXI Waveform Generator

    781204-01 - NI

    PXIe, 145 MHz, 16-Bit, 128 MB, PXI Waveform Generator—The PXIe‑5451 is a 145 MHz, dual‐channel arbitrary waveform generator capable of generating user-definied waveforms, standard functions, and I/Q communications signals. It is an ideal instrument for including in systems for testing devices with I/Q inputs, or as the baseband component of an RF vector signal generator as wells as time-domain signals like envelope tracking. The PXIe‑5451 also features onboard signal processing (OSP) functions that include pulse shaping and interpolation filters, gain and offset control, and a numerically controlled oscillator (NCO) for frequency shifting. The PXIe‑5451 also features advanced synchronization and data streaming capabilities.

  • PXIe-5451, 145 MHz, 16-Bit, 2 GB PXI Waveform Generator

    781204-03 - NI

    PXIe, 145 MHz, 16-Bit, 2 GB PXI Waveform Generator—The PXIe‑5451 is a 145 MHz, dual‐channel arbitrary waveform generator capable of generating user-definied waveforms, standard functions, and I/Q communications signals. It is an ideal instrument for including in systems for testing devices with I/Q inputs, or as the baseband component of an RF vector signal generator as wells as time-domain signals like envelope tracking. The PXIe‑5451 also features onboard signal processing (OSP) functions that include pulse shaping and interpolation filters, gain and offset control, and a numerically controlled oscillator (NCO) for frequency shifting. The PXIe‑5451 also features advanced synchronization and data streaming capabilities.

  • RF Conducted Immunity Testing

    AR RF/Microwave Instrumentation

    If you are tired of mixing and matching various components, try AR’s complete line of RF Conducted Immunity Test Systems. We now make one fully configured and standalone CI System from 4 kHz to 400 MHz with output powers designed to meet the latest commercial, custom, and military standards. In addition, AR provides configurable systems meeting your specific requirements of increased power and frequency range.

  • Multi SDI Monitors

    LV 5333 - Leader Electronics Corp.

    LV 5333 Waveform Monitor is a powerful, versatile video production tool that is compact and portable. LV 5333 has a high quality TFT LCD screen which produces high quality picture images. Waveform, Vector, Audio, Status and 5 Bar gamut displays are all included in this precision instrument. These can be displayed full screen or in various multi-display combinations. LV 5333 can also display the levels of an embedded audio signal. Plus, Cable Length, External Phase Difference, and Field Frequency Deviation measurements are standard along with CINELITE® II. Now with HD HDR monitoring as an option, the LV 5333 can be carried as a portable unit or rackmounted for studio or flypack use.

  • Power Conversion

    MaxLinear

    The XRP6124 is a non synchronous step down (buck) controller for up to 5A point of loads. A wide 3V to 30V input voltage range allows for single supply operations from industry standard 3.3V, 5V, 12V and 24V power rails. With a proprietary Constant On-Time (COT) control scheme, the XRP6124 provides extremely fast line and load transient response while the operating frequency remains nearly constant. It requires no loop compensation hence simplifying circuit implementation and reducing overall component count. The XRP6124 also implements an emulated ESR circuitry allowing usage of ceramic output capacitors and insuring stable operations without the use of extra external components.

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