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 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
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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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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IRIG B to NTP/SNTP Converter
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Signals & Systems India Private Limited
IRIG B TO NTP/SNTP CONVERTER – SPC-INS-1010 is a compact DIN rail mountable protocol converter unit which synchronizes and maintains the timing and frequency requirement of power and process industry equipment using IRIG-B signal obtained from GPS receiver. It provides nanosecond accuracy when external time references are not available. It has the storage facility to store the system log file. It delivers NTP, SNTP, PFC-Pulse, RS232 & RS485 outputs. The system enables configuration and monitoring through Web-based application. It supports a wide range of power supply input either 90V-260V AC/DC or 18-36VDC or 36V-72VDC.
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Product
PTP Toolbox
OSA 5410/11
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The OSA 5410 Series is a family of compact and cost-effective synchronization distribution and assurance devices that bring the power of Syncjack™ to any network. Following a toolbox approach, the family members of the OSA 5410 Series can be utilized in a variety of network synchronization applications including IEEE 1588v2 Access Grandmaster, Boundary and Slave Clock, GNSS receiver and Primary Reference Time Clock (PRTC), synchronization signal conversion and sync probe applications.
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Product
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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Product
Low Cost Microwave Wideband PIN Preamp Receivers
MR21 (40KHz~18GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
MR21 series microwave wideband optical receiver, adopts High linear PIN diode and Low noise pre-amplifier IC, 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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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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Pulse & Delay Generators
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The benchtop pulse generators feature a fast risetime and low jitter. Our most popular digital delay pulse series 575 and 577 generators are now available with selectable time references. With up to eight channels of delay and width control, each individual channel's reference can be set either to the trigger or to any other channel. So look below if you require a picosecond pulse generator or nanosecond pulse generator for your application.
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Product
Microwave Wideband Externally Modulated Transmitters (without RF Amp)
MT80 (30KHz~40GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
MT80 series microwave optical transmitter, adopts external modulation technique, are able to transmit 40GHz 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 40Gb/s high speed communication system. MT80 adopts low noise, narrow linewidth CW DFB laser as light source; LiNbO3 external modulator as signal modulation, no laser chirp, low dispersion distortion, high extinction ratio, Full-transparency operation mode. It can be applied in long distance and extra-long distance transmission after EDFA.
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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
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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Product
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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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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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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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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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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Microwave Wideband Direct Modulated DFB Transmitters
MT52 (40KHz~20GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
MT52 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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Low Cost Microwave Wideband APD Preamp Receivers
MR11 (40KHz~18GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
MR11 series microwave wideband optical receiver, adopts high Sensitivity APD diode and Low Noise Preamplifier IC, 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 high speed communication system.
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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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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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Personal Gamma Radiation Dosimeter
EcotestCARD
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The radiation monitoring badge EcotestCARD allows storing dose accumulation history with real time reference in the non-volatile memory, and communicating it to the computer. If the programmed threshold levels of gamma dose or its rate are exceeded, light and audio alarms are actuated.
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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
Microwave Wideband APD-TIA Receivers
MR12 (40KHz~18GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
MR12 series microwave wideband optical receiver, adopts high Sensitivity APD 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 high speed communication system.
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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
Rubidium Instruments
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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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Counters, Timers, And Ratemeters
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ORTEC offers the broadest range of nuclear counters, timers, rate meters and multichannel scalers. Counters simply count the number of input pulses received during the counting period. Timers count pulses generated by an internal or external clock and are used to measure elapsed time, or to establish the length of the counting period. Rate meters provide a readout of the pulse count rate. Multichannel scalers count the number of events that occur during a specified time interval, referred to as the dwell time, resulting in a time-histogram of counts. “Standalone” and programmable computer controlled versions are available.
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Conventional Panel-mounted Type Power Amplifier Control Unit
PAT01
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PAT01 is a power amplifier control unit that controls timing output and reference signal test source for power amplifier.
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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
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.
