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
Downconverter
DOWNCONVERTER 10 GHz VXI
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The DOWNCONVERTER 10 GHz design assumes its use in closed mobile complexes for field testing of communications equipment. To do this, the device has applied advanced solutions to reduce the phase noise of the output signal in conditions of increased vibration and temperature. The device has a temperature-stabilized reference frequency generator with the ability to output a reference frequency signal. Also, it is possible to operate from an external reference generator.
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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
GPS Frequency Reference
E8000
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The Quartzlock E8000 GPS Frequency Reference is a breakthrough in exceptionally low cost, traceable, 1-U rack mount, calibration-free, off-air frequency & time standards. These very low cost references maintain the high frequency & time accuracy required for demanding applications. Ultra low noise option are available.
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Product
Mode Locked Synthesizer
IT9200
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The ITS-9200 is a synthesized RF source with a flexible locking capability that allows it to be phase-locked to non-standard external references. It is specifically designed for synchronization to mode-locked lasers with pulse output frequencies in the 72-80 MHz region, although it can be easily modified to adapt to other reference frequencies.
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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.
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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
Frequency Synthesizers
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A frequency synthesizer allows the designer to generate a variety of output frequencies as multiples of a single reference frequency. The main application is in generating local oscillator (LO) signals for the up- and down-conversion of RF signals.
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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
Intelligent Time Reference
TM-4™and TM-4/OEM™
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The Intelligent Reference/TM-4™ and TM4/OEM™ are multi- purpose, GPS disciplined timing signal generators and frequency references in economical off-the-shelf and custom configurations. Intended for use in a wide variety of timing, synchronization and frequency reference applications, they are based on the most advanced architecture Spectrum has ever offered, and include the most popular features of Spectrum's core platform for current timing products.
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Product
Spectrum Analyzers
SK4M Series
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*Frequency range: 100 Hz to 20/50 GHz*DANL < −165 dBm/Hz*Low Phase Noise −125 dBc/Hz at 1 GHz signal from 100 kHz offset*High Frequency Reference Accuracy ±0.1 ppm*Resolution Bandwidth Range 1 Hz to 10 MHz*Built-in Low-noise Amplifier
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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
1203c Broadband RF Distribution
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Precise Time and Frequency, Inc.
The ptf 1203C Broadband RF Distribution amplifier provides high performance frequency references for laboratory or system use.The ptf 1203C uses two stages of input signal buffering to distribute the input signal to 12 separate outputs, and insure maximum isolation between individual output signals.
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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
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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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
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
Compact Timing Systems
NanoSync IV & NanoSync IV Low Profile
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The NanoSync IV is a small form factor GPS Position, Navigation, Time (PNT) and Frequency reference system that provides multiple reference outputs and includes support for NTP & PTPv2 IEEE 1588-2008. The NanoSync IV has a Rubidium oscillator and is available with a civilian C/A GPS receiver or SAASM (Rockwell-Collins MPE-S GB-GRAM or Trimble Force 22E MRU GPS receiver) for military users. The NanoSync IV is packaged in a small, rugged enclosure ideally suited for embedded electronic warfare applications.The NanoSync IV-SA-Rb has been demonstrated to be compliant to the Joint Airborne SIGINT Architecture (JASA) Version 3.0, Annex 1, for Time, Frequency, Navigation and Geodesy (TFNG), making it suitable for Electronic Warfare (EW) COMINT and ELINT applications in fixed site, airborne and shipboard environments.
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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
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
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
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
Source Systems AC
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The power sources of MTS-series based on digital amplifier modules combined with frequency generator and reference device are the MTS source system. Single-phase systems (MTS1xx) or three-phase systems (MTS3xx) from 1 to more than 40 test positions are available.
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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
Multifrequency Clock Synthesizer - 6U VPX
Model 5790
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- Simultaneous synthesis of up to five different clocksEight 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 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
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
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
Rubidium Oscillators
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Our range of atomic / rubidium disciplined time and frequency standards in a variety of enclosures and sizes to suit all appliations. These acurate time and frequency references are used in telecoms, aviation, nautical and precision test and measurement enviroments.
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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
PXIe Frequency Reference: 10 MHz And 100 MHz
M9300A
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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.
