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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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 Master Clock
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Signals & Systems India Private Limited
GPS Master Clock System – MCS-GPSMC-1010 is a 3U Card rack type, 19” Rack-mountable Redundant GPS Time Server which synchronizes and maintains the timing and frequency requirement of power and process industry equipment using a signal obtained from any one of the sources like GPS or GLONASS or Time protocols such as NTP and IRIG. It distributing the same time signal through several types of interfaces. It provides redundancy for Power and GPS receiver to increase reliability and offers protection against time synchronization failure. The system is field-upgradeable and an extremely flexible system, designed to handle time synchronization requirements today and in the future. It provides nanosecond accuracy when external time references are not available. It has a storage facility to store the system log file. It delivers NTP, SNTP, IRIG-B, PFC-Pulse, DCF77, BCD parallel data, Ethernet Fiber Optic & RS485/RS232 outputs. System enables configuration and monitoring through Web-based application. It supports a wide range of power supply either 90V-260V AC/DC or 18-36VDC or 36V-72VDC. Power supply model can be mixed and matched as required by the user, depending upon power supply options available at the installation site.
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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
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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Product
Microwave Wideband PIN-TIA Receivers
MR22 (40KHz~18GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
MR22 series microwave wideband optical receiver, adopts High linear PIN diode and limiting amplifier, within bandwidth of 40KHz~18GHz, they are featured with excellent linearity, high responsibility and superior flatness of the RF response in both, power and phase. They provide an outstanding linearity fiber optical communication for analogue 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 18Gb/s high speed communication system.
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Product
Low Cost Microwave Wideband Electro-absorption DFB Transmitter (without RF Amp)
MT60 (40KHz~33GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
MT60 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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Product
NTSC Test Signal 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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Product
3207a GPS/GNS Frequency and Time Reference
GlobalTyme2
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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
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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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
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
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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Product
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
Digital to Analog Converter
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20-bit digital-to-analog (D/A) converter offering 20-bit monotonic performance over the specified temperature range. It utilizes delta-sigma technology to achieve inherently linear performance in a small package at very low power. The resolution of the device can be programmed to 20 bits for Full-Scale, settling to 0.003% within 15ms typical, or 16 bits for Full-Scale, settling to 0.012% within 2ms max. The output range is two times the external reference voltage. On-chip calibration circuitry dramatically reduces low offset and gain errors.
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Product
Reference Magnet
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Reference magnets generate a homogeneous magnetic field in an air gap. They are mainly used to calibrate hall probes for their full scale value of output for the magnetic field strength H or the magnetic flux density B they measure. For example Gaussmeters can be calibrated by using reference magnets.
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Product
35/50 GHz 2/4 Port TDR/TDT Remote Sampling Head for the 86100D DCA-X
N1055A
Time Domain Reflectometry Module
Bandwidth options: 35 or 50 GHz (upgradable)Edge speed (10-90%, typical): 18 ps (35 GHz) or 7 ps (50 GHz)Channel options: 2 or 4 per module (upgradable) with independent skew control and up to 16 channels per 86100D mainframe Ultra-thin remote head: 1.6 m phase-stable cable, 2.92 mm (35 GHz) or 1.85 mm (50 GHz) connectors, and integrated 67 GHz diode limiters for ESD/EOS protection TDR fixture de-embedding removes effects of fixtures, cables or probes connected between remote heads and DUT
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Product
Time Server
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Beijing GFUVE Electronics Co.,Ltd.
Provides accurate synchronization time signals to various power system automation devices by using the second synchronization signals and time information messages sent by BeiDou Navigation System, GLONASS (global navigation satellite system) and GPS (Global Positioning System) satellites.
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Product
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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Product
Reference Meter
SB1300
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Shenzhen Star Instrument Co., Ltd.
The SB1300 three-phase multi-function reference meter incorporates 32-bit floating point DSP, wide-range measuring and embedding industrial PC technologies. This model was the first approved by China National Institute of Metrology. Star Instrument has been granted the first manufacturing license for class 0.02 reference meters. Basic measuring range (phase voltage): 1V~480V, current measuring range: 1mA~120A; wide measuring range (phase voltage): 0.1V~1000V, current measuring range: 0.1mA~200A
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Product
Reference Solutions
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As you seek solutions to evolving test challenges, Keysight Reference Solutions provide the right combination of hardware, software, and measurement expertise through programming examples highly optimized for specific applications. Reference Solutions show you how to get the most out of your test equipment, helping you achieve half the time to insight.
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Product
10 Volt Reference
8110A
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Measurements International Ltd.
8110A 10 volt reference, Industry Leading Stability, Built-in reversing switch for + 10 V, – 10 V, 30 Days: ± 0.25 µV/V, 90 Days: ± 0.75 µV/V, 1 Year: ± 1.5 µV/V, Built-in battery backup.
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Product
Time And Frequency Meter
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A high-precision electronic instrument that measures the frequency of periodic signals and the time interval between events.
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Product
AC Reference Generators
SR21
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Computer Conversions Corporation
The SR Series are miniature, low cost AC reference generators designed to supply 26 or 115 volt excitation to synchros or resolvers in military and industrial control applications. They accept +/-15V DC and provide up to 5VA of transformer isolated output power. These converters are packaged in PC card mounting modules 2.6”x3.1”x1”H.
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Product
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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Product
Timing Controller
MS 2009
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MS5128 Timing Controller has programmable logic generation, Input Output Signals Interface, Timings, macro-cells, Pins, internal timing delay and Signal Levels for airborne microprocessor boards.
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Product
Reference Cells
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Reference cell is used for measuring and setting the intensity of solar simulators for one sun (or other user desired) intensity condition. They are also used to calibrate the IV Measurement system photo-detector intensity to match the measured ISC to calibrated ISC.
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Product
Time Code Processors
TSync
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Safran Federal Systems' TSync time code processors are complete, synchronized timecode reader/generator boards and peripheral slot cards, offering flexibility and easy integration for mission-critical embedded applications.
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Timing Lights
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A stroboscope used to dynamically set the ignition timing of an Otto cycle or similar internal combustion engine equipped with a distributor. Modern electronically controlled passenger vehicle engines require use of a scan tool to display ignition timing.
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PV Reference Cells
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Our silicon-based solar irradiance sensors (Si-Sensors) measure the irradiance intensity on your photovoltaic system with utmost precision.
