Time Reference
An absolute measure of time.
See Also: Time, Timers, Time Interval, GPS Time, Time Code, Time Domain, Time Standards, Timing, Frequency Synthesizers, Time & Frequency, Clocks
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Timing And Sync
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Precision timing is critical for defense and commercial industries and powering essential network operations. Safran offers secure time servers and solutions for accurate network synchronization, ensuring security, compliance, and adherence to best practices. Safran excels in delivering precision timing solutions, including NTPNTP, or Network Time Protocol, is a widely used networking protocol that enables computers and devices to synchronize their system clocks with a reference time source. It ensures accurate timekeeping in computer networks by allowing devices to obtain precise time information from NTP servers, which are typically synchronized to highly accurate atomic clocks. NTP is essential for various applications and services that rely on synchronized time, such as network security, authentication, and data logging. time server appliances and GPSGlobal Positioning System is a navigation satellite system. See also master clocks globally.
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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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PCI Express Receiver Board
AD12-2000-IRIGB
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The AD12-2000-IRIGB is a high performance wideband 0.3-1.8GHz PCIe-bus receiver on a single PCIe Gen3 board, that can continuously digitize a wide portion of the RF spectrum, with a 3.6GSPS 12-bit A/D that can be synchronized with stability of better than +/- 100 picoseconds with respect to an IRIG-B 1PPS signal and global time codes from a satellite receiver or local site time reference. Designed for demanding military, scientific, industrial, communications, safety and electrical power utility applications, the AD12-2000-IRIGB has 60dB of gain adjust range (manual and AGC with programmable loop bandwidth), a wideband noise figure of 9dB, +11dBm 1dB compression point, and 2dB peak-to-peak ripple over the 300MHz to 1.6GB frequency spectrum.
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Low Cost Microwave Wideband Electro-absorption DFB Transmitter
MT62 (40KHz~33GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
MT62 series microwave DML optical transmitter, are able to transmit 33G microwave RF signal with long distance, wide bandwidth, and flat responsibility. They provide an outstanding linearity fiber optical communication for analogue and digital 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 60Gb/s high speed communication system.
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Blackburst & Sync Generators
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provides an economical means for generating the most common SD analog composite video reference timing signals required to operate various SD analog composite video switchers, effects generators, VTRs/VCRs, cameras, video edit controllers, and other professional video equipment.
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SparkFun GNSS Timing Breakout
ZED-F9T (Qwiic)
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The SparkFun GNSS Timing Breakout offers a unique entry into SparkFun's geospatial catalog featuring the ZED-F9T GNSS receiver from u-blox. The ZED-F9T provides up to five nanosecond timing accuracy under clear skies with no external GNSS correction making it perfect for applications where timing accuracy is imperative. Need an extremely accurate time reference to maximize the efficiency of your IoT network of 5G devices? The ZED-F9T GNSS Timing Breakout could be the perfect solution.
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PCI Express A/d Board
AD14-500x4-IRIG
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The AD14-500x4-IRIG is a high performance wideband 4-channel 14-bit data single PCIe Gen3 board, that can continuously digitize four wideband signals, with four high linearity A/Ds. A second board version AD14-500x4-K7US-IRIG-B has all of the above features and can additionally be synchronized with stability of better than +/- 100 picoseconds with respect to an IRIG-B 1PPS signal and global time codes from a satellite receiver or local site time reference, allowing simultaneous synchronized acquisition of data at multiple locations anywhere in the world.
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Digitizer
742 Family
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The 742 is the Switched Capacitor Digitizer family, based on the DRS4 chip by PSI, with the highest sampling frequency (5GS/s) and channel density. It can record very fast signals from scintillators coupled to PMTs, Silicon Photomultipliers, APD, Diamond detectors and others, and save them with high efficiency and precision for advanced timing analysis. The 742 family has an additional channel (two channels in case of VME boards) which can be used as time reference for time of fight measurements. The resolution of this kind of measurements can reach up to 50 ps.
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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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E-Band Signal Analysis Reference Solution
Reference Module
The E-band signal analysis reference solution provides an effective measurement solution for today’s wideband signals as well as emerging communications standards. With the M1971E waveguide harmonic mixer, which provides a 55 to 90 GHz input; Keysight oscilloscopes, which provide excellent signal integrity; and the powerful 89600 VSA software, you have a high-quality wideband measurement solution. A simple user interface also provides integrated mixer setup, correction and LO optimization, allowing for accurate measurements.
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Product
Transition Time Converter, 150ps
15435A
Transition Time Converter
The new design of these transition time converters ensures very low signal reflection far beyond the 3 dB point, unlike conventional converters.Reducing the signal transition-times also increases the overall pulse-performance for overshoot/reflection sensitive applications.The converters are fitted with SMA connectors, one male, one female.
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Product
Transition Time Converter, 500ps
15433B
Transition Time Converter
The new design of these transition time converters ensures very low signal reflection far beyond the 3 dB point, unlike conventional converters. Reducing the signal transition-times also increases the overall pulse-performance for overshoot/reflection sensitive applications. The converters are fitted with SMA connectors, one male, one female. These converters have been designed to convert the fixed transition-times of the Keysight 8133A 3 GHz timing generator (<100 ps transitions) to slower, fixed transition-times (150 ps, 250 ps, 500 ps, 1 ns, 2 ns) hence reducing the signal bandwidth. All transition-times are from 10% to 90% of amplitude.
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Product
Microwave Wideband Direct Modulated DFB Transmitters (without RF Amp)
MT50 (40KHz~20GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
MT50 series microwave wideband direct modulated DFB transmitter, are able to transmit 20G microwave RF signal with long distance, wide bandwidth, and flat responsibility. They provide an outstanding linearity fiber optical communication for analogue and digital 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.
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Product
Transition Time Converter, 250ps
15432B
Transition Time Converter
The new design of these transition time converters ensures very low signal reflection far beyond the 3 dB point, unlike conventional converters. Reducing the signal transition-times also increases the overall pulse-performance for overshoot/reflection sensitive applications. The converters are fitted with SMA connectors, one male, one female. These converters have been designed to convert the fixed transition-times of the Keysight 8133A 3 GHz timing generator (<100 ps transitions) to slower, fixed transition-times (150 ps, 250 ps, 500 ps, 1 ns, 2 ns) hence reducing the signal bandwidth. All transition-times are from 10% to 90% of amplitude.
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AC Reference Modules
Reference Module
NAI offers a variety of AC reference modules that provide a drive capability to 5 VA. The units are transformer-isolated and operate over a frequency range from 47 Hz to 10 kHz. These modules are specifically designed for rugged defense, commercial aerospace, and industrial applications.
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Product
PXIe-6674T, OCXO PXI Synchronization Module
781037-01
Timing and Synchronization Module
PXIe, OCXO PXI Synchronization Module—The PXIe‑6674T generates and routes clocks and triggers between devices in a PXI Express chassis as well as to other PXI and PXI Express chassis or third-party instrumentation. The PXIe‑6674T unlocks the advanced low-voltage differential signaling (LVDS) trigger signals PXIe‑DStarA, PXIe‑DStarB, and PXIe‑DStarC, on PXI Express while fully supporting the PXI trigger lines. The PXIe‑6674T can generate two types of clock signals: a highly stable 10 MHz clock based on an onboard precision oven-controlled crystal oscillator (OCXO) reference and a second clock from the direct digital synthesis (DDS) clock generation circuit.
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Product
Reference Antennas
Type NRD
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Reference antennas are precision dipole antennas that offer a fixed 2.15 dB of gain over an isotropic antenna along the major lobe axis at specified frequencies (2.15 dBi). They are intended to be used for antenna field pattern and gain measurements, or general RF sensing in the laboratory.
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Voltage References
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Renesas' wide selection of voltage reference (Vref) circuits offer accurate and stable reference voltages unaffected by external influences such as variation in temperature, input voltage and time.
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Voltage References
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Analog Devices offers the widest selection of high performance voltage references in the industry. Our products range from high accuracy, low noise for high end industrial applications to general-purpose, low power for handheld, battery-powered applications. ADI is the ultimate source for design engineers looking for the perfect voltage reference that is cost effective, reliable, and dependable.
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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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Micropower Voltage Reference
ISL21010
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The ISL21010 is a precision, low dropout micropower bandgap voltage reference in a space-saving SOT-23 package. It operates from a single 2.2V to 5.5V supply (minimum voltage is dependent on voltage option) and provides a ±0.2% accurate reference. The ISL21010 provides up to 25mA output current sourcing with low 150mV dropout voltage.
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Reference Thermometers
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Our Reference Thermapen takes lab accuracy into the field. Each unit is factory calibrated at 5 test points and includes a UKAS accredited calibration certificate with test data. A true "system calibration" is performed matching its Platinum RTD sensor and the built-in electronics so all errors are included in the spec.
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Product
nVision Reference Recorder
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AMETEK Sensors, Test & Calibration
Accurate enough to replace a deadweight testerRugged enough to sit in 3 feet of waterPortable enough to complete calibrations anywhere
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Product
Shunt Voltage References
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Analog Devices offers a broad line of shunt precision voltage references that combine excellent accuracy and temperature stability with low noise and small packages. These devices operate in a manner that is functionally equivalent to a Zener diode. The bias current must be set higher than the sum of the maximum quiescent current of the voltage reference and the maximum expected load current. Since shunt voltage references are typically biased with a resistor, the voltage reference can operate on a wide range of input voltages.
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Product
Time Machine
Retro-Fi
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Retro-Fi is a time machine, constructed to take you back to a time when the most common way of hearing the latest hit music was AM radio. The music of that time included many styles and sounds, but the way the music sounded was always the same, owing to the limitations of the medium.
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Timing Relays
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Is particularly suitable for use in protection & control schemes where precision time delays are required.
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Reference Oscillator
REF Series 1.5” x 1.5” x 0.6”
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*Connectorized Package *Free Running *Low Phase Noise *Output Power to +12 dBm Available
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Video Timing Generator
VTG
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The VTG Video Timing Generator provides up to ten video sync signals with which to synchronize CCTV cameras in the field. The VTG is intended to be used with the VTM Video Timing Meter to establish accurate timing of multiple CCTV cameras.
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Timing Distribution Solutions
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Our Timing Solutions allow the long-term stable distribution of a master RF or optical reference throughout a large-scale research facility with minimal added phase noise and drift (< 10 fs rms). Ideally suited for modern accelerator facilities, our solutions are fully customizable. We will work with you to make sure the system fits the requirements of your facility exactly.
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Positioning, Navigation, & Timing
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Spirent is the trusted partner of the world’s leading PNT developers, delivering maximum performance without compromise through dedicated test and assurance solutions.
