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
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
Rubidium Oscillators
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Our range of precise low noise rubidium oscillators in a variety of sizes to suit all appliations. These acurate frequency references are used in telecoms, aviation, nautical and precision test and measurement enviroments.
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Product
Frequency Reference
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Quartzlock time and frequency standards offer a complete range of cost effective and low noise in both atomic controlled (rubidium oscillator) and GPS controlled (off-air) time and frequency reference, calibrators and standards. These acurate time and frequency references are used in telecoms, aviation, nautical and precision test and measurement enviroments.
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Product
Distribution Amplifiers
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A complete range of distribution amplifiers are manufactured by Precision Test Systems. A distribution amplifier is used to distribute the output of a frequency reference to many different places. Usually the frequency is 5 or 10 MHz but we manufacture distribution amps from DC to over 2000 MHz. We make some of the industries lowest phase noise products.
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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
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.
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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
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
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
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
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
Rubidium Atomic Audio Clock
PERF10
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Stanford Research Systems, Inc.
Perfection is a high standard - but your studio clocks deserve nothing less. That''s why we designed the PERF10, to offer audio professionals and demanding audiophiles a frequency reference of staggering accuracy and unmatched stability.
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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
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
Timing Modules
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Quartzlock provides Timing Modules for network timing, reference disciplining to various input references such as 1PPS, GPS receiver and Frequency References.
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Product
Intelligent Reference
TM-4D
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The Intelligent Reference/TM-4D™ breaks new ground for time and frequency references. For the first time, it is possible to generate and distribute both analog and digital signals to multiple instruments and locations with just one product that fits in a single rack space. The TM-4D is three instruments in one: an Intelligent Reference/TM-4™ precise time and frequency reference, a digital signal distribution amplifier and an analog distribution amplifier. And it eliminates the need for multiple boxes.
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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
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
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
Microwave Wideband Synthesizer w/ Integrated VCO
ADF4371
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The ADF4371 allows implementation of fractional-N or interger-N phase-loacked loop (PLL) frequency synthesizers when used with an external loop filter and an external reference frequency. The wideband microwave VCO design allows frequencies from 62.5 MHz to 32 GHz to be integrated
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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
1202a High Frequency Distribution
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Precise Time and Frequency, Inc.
The ptf 1202A High Frequency Distribution amplifier provides high performance frequency references for laboratory or system use requiring distribution at frequencies of 30MHz and above.The ptf 1202A is especially designed to distribute the high frequency input signal to 12 separate outputs, with minimum signal distortion and maximum isolation between individual output signals.
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Product
Quantum & Metrology Instruments
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Beyond quantum sensors, Exail’s photonics solutions enable real applications in other quantum technology fields. They also enable precise control and transmission of the frequency, phase and amplitude of a laser light through fibered telecommunication links, for metrology applications. The true and deep understanding of Exail teams for the fundamental physics behind its technology explains the absolute quality of its time & frequency reference products.
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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
Multifrequency Clock Synthesizer - PMC
Model 7190
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- Simultaneous synthesis of up to 5 different clocks- 8 SMC clock outputs- Ideal for A/D and D/A converter clock sources- Typical phase noise: -125 dBc/Hz @ 1 kHz offset- All clocks are phase-locked to input reference signal- Input reference frequency of 5 or 10 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 500 MHz- Control and status via PCI bus interface
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Product
1211a Optical Receiver/Distribution
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Precise Time and Frequency, Inc.
To complement the range of high quality frequency and timing references, Precise Time and Frequency, LLC. has now introduced a new Optical Time Code Receiver, with Auto Switching, a full complement of time code outputs, and Ethernet/RS232 remote monitoring/control interface.In addition to the auto switching capability, the new ptf 1211A delivers up to thirty six channels of Time Code outputs, including re-transmission of the optical input. The unit can accept a pair of inputs (usually from separate primary and backup sources), and provides monitoring of both the inputs and outputs for signal integrity.If the primary input fails, the unit will automatically switch to the backup input and indicate a primary signal fault.Full remote monitoring and control via RS232 and Ethernet interfaces includes telnet, http (web browser), and SNMP protocols.
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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
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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