Frequency References
See Also: References, Reference Standards, Reference Antennas, Reference Decoders, Reference Jumpers, Reference Sources, Reference Transformers, Reference Transmitters, Acoustical References, Solar Reference Cells
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Product
Saturable Spectroscopy Laser Lock Module
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A compact, mechanically-robust laser frequency reference.
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Product
Multifrequency Clock Synthesizer - 6U VPX
Model 5890
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- Simultaneous synthesis of up to 10 different clocks- 16 SMC clock outputs- Typical phase noise: 105 dBc/Hz @ 1 kHz offset- All clocks are phase-locked to input reference signal- Input reference frequency of 5 to 100 MHz- Eight quad VCXOs allow selection from 16 different base frequencies- Output clocks of 1, 2, 4, 8, or 16 submultiples of VCXO base frequencies- Output clock frequencies between 50 and 700 MHz- Control and status over the VPX backplane
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Product
Regeneration Station
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This equipment is a stand-alone device that enables to coherently regenerate an optical signal allowing long-haul dissemination of an ultra-stable optical frequency reference. Its architecture is based on the heterodyne phase-locking of a narrow spectral width laser diode on the reference signal. The station is equipped with low phase noise optical interferometer that perform a thorough characterization of the phase noise accumulated by the incoming signal, and a compensation system of this phase noise.
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Product
Frequency Reference
E8-X
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The Quartzlock E8-X is a breakthrough in exceptionally low cost, miniature, traceable, calibration-free, off-air frequency & time standards. These references maintain the high frequency & time accuracy required for demanding applications.
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Product
4210A Rubidium Frequency Standard
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Precise Time and Frequency, Inc.
The ptf 4210A Rubidium Frequency Standard is a unique solution for providing a highly stable, low phase noise, frequency reference for applications requiring atomic reference stability performance.The instrument contains a high performance rubidium module, with an extended life design, and very low aging rate, with high quality OCXO o/p for low phase noise.
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Product
VME Time & Frequency Processor
VME635091-SyncClock
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Brandywine Communications’ VME635091-SYNCCLOCK is a time and frequency processor module that provides precision time and frequency reference to the host computer and peripheral data acquisition systems. Time is acquired from time code signals, typically IRIG B. Time is displayed on the front panel (hours, minutes, seconds) via LED digits.
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Product
Shaper Of The Reference Frequency
MFC
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The mezzanine module (mezzanine) of the MFC is designed to reproduce on six output lines high-precision frequency values obtained by dividing the frequency from the built-in reference frequency generator.
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Product
GPS Time and Frequency Standards
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Our range of GPS disciplined Rubidium Oscillator, OCXO and TCXO, low cost and stable, time and frequency references in a variety of rack mount and desktop sizes to suit all applications. For a technical discussion of GPS go here or select a link below for product information.
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Product
8-Channel, 10 MHz Precision ReferenceWith Sine and Logic Outputs
ITS-6200
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The ITS-6200 is a versatile 10 MHz laboratory frequency reference useful for synchronizing test instruments to a common standard. Eight outputs are provided, each which can be configured independently as sinewave or logic level square-wave signals. Additionally, CMOS logic levels can be set for 5V, 3.3V, or 2.5V logic family compatibility. A 10 MHz reference input is provided to phase lock the ITS-6200 to an external reference, such as a GPS or Rubidium standard, or cascade multiple ITS-6200 units for additional outputs. The low phase noise and high stability OCXO within the ITS-6200 is suitable for the most demanding applications, whether free-running or phase locked. The compact size and low power consumption makes the instrument highly portable and suitable for AC-powered operation in the lab or battery operation in mobile or field applications.
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Product
Programmable Multifrequency Clock Synthesizer - 6U VPX
Model 5791
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- Simultaneous synthesis of up to five different clocks- Eight SMC clock outputs- Typical phase noise: -105 dBc/Hz @ 1 kHz offset- All clocks are phase-locked to input reference signal- Input reference frequency of 5 to 100 MHz- Four programmable VCXOs with 32-bit tuning resolution- Output clocks of 1, 2, 4, 8, or 16 submultiples of VCXO base frequencies- Output clock frequencies between 50 and 700 MHz- Control and status over the VPX backplane
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Product
PXIe Frequency Reference: 10 MHz And 100 MHz
M9300A
Signal Generator
The M9300A PXIe frequency reference is a PXIe-compatible, compact, modular instrument that can be used with the Keysight M9301A synthesizer, M9310A source output, and M9311A modulator to create the world’s fastest vector signal generator, the M9381A. Create a CW source, the M9380A, by combining the M9300A with the M9301A and M9310A or use it as the 10-MHz or 100-MHz reference with other PXI solutions. Control the instrument through a soft front panel and programmatic interfaces tuned to your application development environment of choice.
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Product
Programmable Multifrequency Clock Synthesizer - 6U VPX
Model 5891
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- Simultaneous synthesis of up to 10 different clocks- 16 SMC clock outputs- Typical phase noise: -105 dBc/Hz @ 1 kHz offset- All clocks are phase-locked to input reference signal- Input reference frequency of 5 to 100 MHz- Eight programmable VCXOs with 32-bit tuning resolution- Output clocks of 1, 2, 4, 8, or 16 submultiples of VCXO base frequencies- Output clock frequencies between 50 and 700 MHz- Control and status over the VPX backplane
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Product
6.8 GHz Wideband Synthesizer with Integrated VCO
ADF4356
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The ADF4356 allows implementation of fractional-N or integer-N phase-locked loop (PLL) frequency synthesizers when used with an external loop filter and an external reference frequency. A series of frequency dividers at another frequency output permits operation from 53.125 MHz to 6800 MHz. The ADF4356 has an integrated VCO with a fundamental output frequency ranging from 3400 MHz to 6800 MHz. In addition, the VCO frequency is connected to divide by 1, 2, 4, 8, 16, 32, or 64 circuits that allow the user to generate RF output frequencies as low as 53.125 MHz. For applications that require isolation, the RF output stage can be muted. The mute function is both pin- and software-controllable.
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Product
MuClock
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Our Muclock is the only commercially available time & frequency reference based on quantum manipulation of laser cooled atoms in the world. This unique solution is the result of more than 15 years of experience acquired by our academic partner, LNE-SYRTE, one of the major international experts in the field of time standards.
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Product
Adjustable High Frequency Reference Ballast
HCS-109A
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HCS-109A Adjustable High Frequency Reference Ballast also called High Frequency Current Source. Comparing to IEC Test Method, HCS-109A is an Equivalent Test Method which is economic solution. HCS-109A equipped with Spectrophotometer & Integrating Sphere Test System. It can also measure the photo, color and electricity parameters for high frequency fluorescent lamp.Specifications: • Input voltage: 200V~240V, 50/60Hz • Input Power: 80 W max • Output Current: 130mA~400mA (Adjustable), accuracy: +/- 1% • Output Frequency: 25kHz< +/-2.0% (Adjustable), accuracy: +/- 0.3kHz • Output current total harmonic wave distortion: THD<2.5% (HF current wave)
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Product
Time & Frequency Distribution Amplifiers
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Brandywine offers a wide range of high quality, state of the art signal timing distribution amplifiers, all with very low phase noise. These precision timing signal distribution amplifiers offer a variety of time and frequency signals and interface formats including IRIG A, IRIG B, Have Quick, 1PPS, as well as low phase noise reference frequencies. All of our distribution amplifiers feature dual inputs with automatic failover and multiple independently buffered outputs.
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Product
RF COMPONENTS
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If space is an issue and you are looking for high quality RF Components, ETL's wide range is designed and manufactured at the ETL factory. Covering DC to 40GHz, these are at the heart of many of our 19" Rack Systems.A key feature of many of ETL components is the ability to pass or block a 10 MHz signal or DC voltage through the products, which can be used to power interconnecting components or pass a stable frequency reference to a LNB or BUC within the system.
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Product
Programmable Multifrequency Clock Synthesizer - PMC
Model 7191
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- Simultaneous synthesis of up to up to 5 different clocks- Eight SMC clock outputs- Ideal for A/D and D/A converter clock sources- Typical phase noise: -105 dBc/Hz @ 1 kHz offset- All clocks are phase-locked to input reference signal- Input reference frequency of 5 or 100 MHz- Four programmable VCXOs with 32-bit tuning resolution- Output clocks of 1, 2, 4, 8, or 16 submultiples of VCXO base frequencies- Output clock frequencies between 50 and 700 MHz- Control and status via PCI bus interface
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Product
Space Qualified Oscillators
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Our range of space qualified precise low noise rubidium oscillators. These highly accurate space qualified frequency references are used in Satellite Navigation Systems, Intelligence Reconnaissance Satellites, Military Communication Satellites, Deep-Space Survey and Space Stations
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Product
1.533 Μm Frequency-Locked Laser
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Thorlabs' LLD1530 Frequency-Locked Laser is a narrow linewidth, DFB-laser-diode-based, turnkey system with a vacuum emission wavelength of 1532.8323 nm and a high SMSR of at least 35 dB. The laser frequency is actively stabilized to a National Institute of Standards and Technology (NIST)-traceable molecular transition of acetylene and has an absolute accuracy at start-up that is better than ±25 MHz. The emission frequency immediately after start-up is then maintained with a ±25 MHz stability, providing an overall frequency accuracy of ±50 MHz. The LLD1530 is an accurate frequency reference designed to provide low-noise laser emission with excellent frequency stability, accuracy, and precision immediately at start-up. This source is ideal for use in demanding FTIR instrumentation, instrument calibration, gas sensing, and coherent telecommunications applications.
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Product
Quad RF Driver
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The Quad RF Driver contains four independent RF channels, each with an RF synthesizer, variable attenuator, and 1W power amplifier. The RF signal can originate from either the internal synthesizer or an external source via SMA input. All channels have independent frequency, phase, and gain settings and can be operated in one of two modes. The “Wideband” mode operates from 35MHz to 2GHz with a 3.472KHz resolution; over this range the frequency roll-off is approximately 0.5dB/100MHz. “Int-N Phase Adjust” mode allows the user to set and maintain a fixed phase relationship between all four channels. This mode is designed to operate between 300 and 460MHz with a 2MHz resolution. Two additional inputs are provided for an external frequency reference and digital modulation.
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Product
Microwave Wideband Synthesizer w/ Integrated VCO
ADF5356
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The ADF5356 allows implementation of fractional-N or integer-N phase-locked loop (PLL) frequency synthesizers when used with an external loop filter and an external reference frequency. The wideband microwave VCO design permits frequency operation from 6.8 GHz to 13.6 GHz at one radio frequency (RF) output. A series of frequency dividers at another frequency output permits operation from 53.125 MHz to 6800 MHz. The ADF5356 has an integrated VCO with a fundamental output frequency ranging from 3400 MHz to 6800 MHz. In addition, the VCO frequency is connected to divide by 1, 2, 4, 8, 16, 32, or 64 circuits that allow the user to generate RF output frequencies as low as 53.125 MHz. For applications that require isolation, the RF output stage can be muted. The mute function is both pin- and software-controllable.
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Product
Generators
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We offer a wide range of power supplies, current and voltage supplies, frequency references, RF generators, transceivers.
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Product
Selective Level Meter
Model SLM620
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- Digital Synthesized Local Oscillator- Two Selective Bandwidths : 20Hz, 3.1KHz- Wideband, Low Noise and Low Distortion Measurements- dB/dBm Operation- High Frequency Stability- Internal Calibration Facility- Recorder Outputs- Frequency Tracking Facility with Level Oscillator SLG620- Storage of Nine Spot Frequencies- Reference Level Set Facility- Autotune Feature- Operates on AC Mains or Internal Rechargeable Battery- Built in charger- Graphic LCD Display with Backlight
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Product
3207a GPS/GNS Frequency and Time Reference
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Precise Time and Frequency, Inc.
The ptf 3207A GlobalTyme2 GNS Receiver introduces a new level of advanced capability from a second generation, based on the highly successful ptf 3203A and ptf 3204A GlobalTyme receivers.The unit is both a frequency standard and a time standard and has been used as a precision frequency reference with low phase noise, in satellite communications applications around the world.
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Product
2210A & 2211A Quartz Frequency Standards
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Precise Time and Frequency, Inc.
The ptf 2210A Quartz Frequency Standard has been designed to provide a highly stable and spectrally pure frequency reference for applications requiring the ultimate in short term frequency performance.The instrument contains a double oven controlled stress compensated (SC cut) quartz crystal oscillator (OCXO) to give the ultimate in performance.Ideal for laboratory or system use, the unit provides good stability performance at lower cost and with improved phase noise.
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Frequency Multipliers
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RF coaxial frequency multiplier (also referred to as a coaxial frequency doubler) PE8600 from Pasternack has SMA conectors and are 50 Ohm. Our SMA frequency multiplier is manufactured for a minimum frequency input of 1.5 GHz and a maximum frequency input of 5 GHz. This SMA microwave frequency multiplier / doubler output minimum frequency is 3 GHz and output maximum frequency of 10 GHz.
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Product
Phase Detectors
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Macom Technology Solutions Holdings Inc.
MACOM's MSPD Series Integrates an SRD reference frequency multiplier, coupling capacitors and a Schottky diode microwave sampler / phase detector in a 0.075” by 0.100” hybrid. They are used to phase lock microwave oscillators up to 22 GHz to a much lower reference frequency by deriving a locking voltage from the sampled RF and the multiplied reference.
