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Intelligent Time Reference
TM-4™and TM-4/OEM™
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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Optical Chopper
SR540
Stanford Research Systems, Inc.
The SR540 chopper will handle all your optical chopping requirements?from simple measurements to dual-beam and intermodulation experiments. The SR540 has a 4-digit frequency display, front-panel frequency control, analog voltage frequency control and two reference outputs with selectable operating modes.
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Rubidium Instruments
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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Rubidium Oscillators
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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Embedded LO Capability
S97084B
The S97084B tunes the analyzer’s receivers to the output frequency of the converter under test without the need for access to internal LOs or a common reference signal
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2 Channels, 28-115 Vrms, 47 Hz-2.5 kHz (max. range) programmable
AC3
The module is used to provide an AC signal source when a secondary reference source other than the optional on-board reference module is required. The modules are programmable for full range voltage outputs from 2 to 115 VAC, and frequency from 47 Hz to 10 kHz.
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2 Channels, 2-28 Vrms, 47 Hz-20 kHz (max. range), programmable
AC2
The module is used to provide an AC signal source when a secondary reference source other than the optional on-board reference module is required. The modules are programmable for full range voltage outputs from 2 to 115 VAC, and frequency from 47 Hz to 10 kHz.
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Embedded LO Capability
S95084B
The S95084B software tunes the analyzer’s receivers to the output frequency of the converter under test without the need for access to internal LOs or a common reference signal.
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400MHz DDS Signal Generator
440A
The 440A generates a sinewave is via an RS232 serial interface. The frequency is accurate to 1.5ppm and can be locked to an external frequency reference. The phase can also be programmed with 14-bit resolution. It includes a Line Voltage AC Adapter and a CD containing windows software.
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Embedded LO Capability
S96084B
Enables accurate measurement of relative phase and absolute group delay of a frequency converter with a built-in LO source, without having to access a common reference signal
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Active Type Hydrogen Frequency
CH1-1003M
Hydrogen frequency and time standard Ch1-1003M is designed for precision storage and reproduction of the size of frequency and time units as part of measures and reference complexes. Main applications: – national time and frequency services; – ground stations for tracking and control of satellite radio navigation systems; – radio interferometry with extra long base.
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Intelligent Reference
TM-4D
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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Microwave Wideband Synthesizer w/ Integrated VCO
ADF4371
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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GPS/GLONASS Disciplined Rb Oscillator
VCH-311
GPS/GLONASS disciplined rubidium frequency standard model VCH-311 is a high stable frequency signal source (STANDARD mode), or precision frequency calibrator for any external standard signals (CALIBRATOR mode). The instrument contains multi-channel GPS/GLONASS receiver, time scale comparison unit and automatically adjustable Rubidium reference oscillator.
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IQ Demodulator
IQD Series
*Capable of receiving RF and LO frequency inputs *Output from DC to 500 MHz *Internal low noise oscillator Internal reference *Buffered demodulator *Balanced IQ *Optimized for low EVm *Optional internal Reference Detect Switch (EM Research RDS Series) *Up to 250 mega-symbols per second
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1202a High Frequency Distribution
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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Rubidium Oscillators
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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Mezzanine System
5174
The 5174 provides two major functions, serving as a precision Voltage Controlled oscillator board and a variable frequency source board. These features can be use together or independently. As a variable frequency source, the 5174 provides a high-resolution variable clock source that is based upon a reference clock supplied by the ECM carrier.
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CFL Testing Instruments
CFL testing instruments of Lisun Group includes: High Frequency Fluorescent Lamp Test, Adjustable Reference Ballast, Digital Torsion Meter, Multiplex temperature tester, Lamp cap gauge, etc.
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Hydrophone
RESON TC 4040
The TC4040 is an ideal standard reference hydrophone for calibration of transducers, hydrophones and underwater acoustic measurement systems.The TC4040 offers flat frequency receiving response over a wide frequency range and the relatively high transmitting sensitivity makes it very useful within many areas of underwater acoustic research, tests and measurements.
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Hydrophone
RESON TC 4038
The TC4038 is a miniature probe hydrophone, specifically designed as a standard reference hydrophone for high frequencies in the range: 100kHz to 1.2MHz. The TC4038 provides a flat frequency response and omnidirectional characteristics in the specified frequency range. The sensor element has excellent stability, which ensures reliable sensitivity over long periods of time.
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VME Time & Frequency Processor
VME635091-SyncClock
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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Rubidium Atomic Audio Clock
PERF10
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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Spectrum Analyzers
SK4M Series
*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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Regeneration Station
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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Mini Digital Sound Level Meter
PSPL01
Frequency Range: 31.5 Hz-8 KHzMeasuring Level Range: 40 to 130 dBAccuracy: +/- 3.5dB @ 1 kHz, 94dB (Under Reference Conditions)1/2" Electret Condenser MicrophoneNewly Designed HousingC-type Frequency WeightingHigh Performance & Auto LCD Backlight50 hrs. Battery LifeAuto Power Off (15 Minutes Inactivity)Sold as : Unit
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Frequency Response Function
FRF
FFT Spectral Analysis. Frequency Response Function (FRF) is a commonly used measurement type of the Dynamic Signal Analyzer. FRF is defined as the ratio of response i.e. acceleration, velocity, or displacement with respect to the excitation force which is the reference.
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Distribution Amplifiers
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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Dipole Antenna
AD-100
The Tuned Dipole Antenna model AD-100 is a reference antenna set specified in many EMC standards. It is used in the frequency range of 30 MHz to 1 GHz. This set consists of four baluns and was designed according to American National Standard C63.4. This reference antenna set is used for EMC test site calibrations and for calibrating other antennas, because it is considered a standard antenna according to ANSI C63.5 standard.
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2210A & 2211A Quartz Frequency Standards
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.