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
Monolithic Balanced Mixers With Intermediate Frequency Amplifier
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Insight Product Company offers Monolithic Balanced Mixers with and Intermediate Frequency Amplifier in frequency range of 26 to 178 GHz.
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Product
Small Step Frequency Synthesizer
ZFR Series
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ZFR series programmable frequency synthesizers combine multi-octave bandwidth, small step size, low phase noise, fast switching speed, and a compact package size to create a truly versatile synthesizer. The ZFR series can be tailored to the specific frequency range and control interface required, with programmable frequencies to 31 GHz.
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Product
Low Frequency 2-Way Power Dividers To 3000 MHz
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Power dividers from 4 kHz to 3 GHz are available from Pulsar Microwave in connectorized packages with SMA-female connectors, standard. This series is designed to handle 1 watt input power. They are designed for use in 50-ohm systems, and cover frequencies for VHF, UHF, Cell and PCS applications.
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Product
High-Speed, Fiber-Optic Reference Transmitters
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Thorlabs' Reference Transmitters are designed for high-speed fiber optic test and measurement applications. They are fully-integrated and user-configurable solutions based on proven lithium niobate (LiNbO3) modulator technology driven by high-fidelity RF amplifiers.
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Product
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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Product
High Accuracy AC Reference Source
515
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Clarke-Hess Communications Research
The Model 515 High Accuracy AC Reference Generator fills a need for a relatively low cost and practical solution for supplying a reference excitation to typical LVDT and Synchro/Resolver transducers. The Model 515 has built-in load sensing which, in effect, yields "zero" output impedance and virtually eliminates the effects of fluctuating output loads. With up to 15 VA of output into loads with as much as 80 of phase shift, the Model 515 is ideally suited to driving inductive loads.
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Product
Reference Temperature Calibrator
JOFRA™ RTC-187
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AMETEK Sensors, Test & Calibration
RTC-187 provides high-quality temperature measurement from -45 to 180°C. The 180°C is a 25° expansion over the range of the RTC-157, and it’s now the hottest temperature available for a calibrator that also supplies cold temperatures.
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Product
Variable Frequency Drives (VFD)
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High performance, cost effective VFDs, ideal for both machines & process control.Unitronics VFDs offer options for both single and three phase VFDs from 0.4 kW and up to 500 kW.Unitronics VFDs can be used as a stand-alone product, or as part of a complete All-in-One package with our controllers.
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Product
Digital Attenuator Operating Frequency of 1 to 20 GHz
LDA Series
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The LDA series of Lab Brick® RF and Microwave Programmable Digital Attenuators includes 50 Ohm and 75 Ohm bidirectional RF step attenuators with calibrated operation up to 20 GHz. These USB powered and controlled units require no additional DC supply voltage. They are easily programmable for fixed attenuation or swept attenuation ramps directly from the included GUI. Lab Brick Digital Attenuator API DLL, Linux drivers and LabVIEW-compatible drivers are also available for custom programming applications.
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Product
Frequency Offset Measurements
S93080B
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The S93080B frequency offset capability enables the network analyzers to set the source frequency independently from where the receivers are tuned.
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Product
High Resolution Frequency Response Analysis (FRA) System
TR-AS FRA
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The Frequency Response Analysis (FRA) on power transformers is used for diagnosis at works, after putting into operation and for maintenance on site. The frequency dependent admittance is determined and recorded as fingerprint.
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Product
Digital/Analog Frequency Response Analyzer
8800 Series
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The analyzer utilizes a digital “Sync” signal to provide synchronization between analog and digital hardware. The Model 8800 performs simultaneous analysis on both analog input channels and digital target processor, reliably capturing all data. Versatile by design, the Model 8800 digital interface can be disabled, via software, to use the analyzer in a standard 2-channel, analog-only configuration.
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Product
HIGH FREQUENCY DC BIAS
6565 SERIES
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The 6565 HF DC Bias Unit is intended to be used with a Wayne Kerr 6500 analyzer, either the 6500B Precision Impedance Analyzer or the 6500P HF LCR Meter. Its function is to provide a source of DC bias current through the Device Under Test (DUT) while the analyzer is making AC measurements. Each 6565 unit can provide up to 10 A of DC current, and up to six 6565 units can be connected in parallel to supply a maximum 60 A. A digital ammeter on the front panel allows the user to see the dc bias current value and an indicator LED shows when the bias current is enabled.
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Product
Xytronic Three-Phase Reference Standard +/- 0.04%, +/- 0.02%, +/- 0.01%
RADIAN RX-30, RX-31 and RX-33
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Radian Research is committed to providing our customers with leading innovative and technologically superior products, while maintaining metrology capability in power and energy measurement that is surpassed by none. Our engineers drew on the expertise and knowledge we acquired for our industry-leading legacy RM (Metronic) and RD (Dytronic) reference standards to develop the RX (Xytronic), the ultimate in power and energy measurement technology perfection.
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Product
8 Channel 1GHz High Frequency for SBDT Relay Module
DP-cPCI-4158
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DP-cPCI-4158 is a 8 channel high frequency SPDT relay module. It provides for 1000V DC isolation between channels. This module is constructed using SPDT relays.
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Product
Frequency Counters/Timers
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The Tektronix FCA Series frequency counter / timer / analyzer packs the functionality of a frequency counter, frequency meter and timer into one feature-rich instrument. With unprecedented resolution, you can capture very small frequency and time changes. Tektronix frequency counters and timers offer comprehensive analysis modes, including measurement statistics, histograms, and trend plots.
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Product
8-Channel, 100 MHz Counter/Timer/Frequency Meter Function Card
ProDAQ 3808
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The ProDAQ 3808 function card, an enhanced version of the ProDAQ 3806 counter/timer function card, is designed to operate in one of three modes: pulse counter, frequency meter, or time interval counter. In the pulse counter and frequency measurement modes, users can process incoming signals of up to 25 MHz on each of the six channels. A time interval counter range is divided into six sub-ranges, covering times from 40 ns to 20000 s with a maximum resolution of 10 ns. For pulse-width measurements, the same ranges apply.
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Product
Radio Frequency Cable Tester
RFCT
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Textron Systems’ Radio Frequency Cable Tester (RFCT) allows for on-site testing and maintenance for radio frequency (RF) transmission paths within a platform. Using preconfigured databases of sweep parameters and pass/fail criteria, the RFCT quickly determines the status of installed RF cables. The RFCT checks each cable’s performance characteristics to include voltage standing wave ratio (VSWR), insertion loss (IL), phase and phase matching. If a cable fails a test, the RFCT automatically determines the distance-to-fault (DTF). With its intuitive touchscreen-based user interface and lightweight, ruggedized packaging, the RFCT is the gold standard for operational-level RF cable testing.
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Product
25µA Micropower Voltage References
ISL21070
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The ISL21070 voltage references are analog voltage references featuring low supply voltage operation at ultra-low 25µA max operating current. Additionally, the ISL21070 family features guaranteed initial accuracy as low as ±0.2% and 30ppm/°C temperature coefficient. These references are ideal for general purpose applications for performance at lower cost.
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Product
4-Port 9 GHz Analyzer, Frequency Extension Compatible
C4409
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C4409 Vector Network Analyzer delivers industry-leading dynamic range and sweep speed, with all the features engineers have come to expect included standard in our software. This VNA is frequency extender compatible and is the anchor network analyzer for the CobaltFx frequency extender system.
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Product
High Frequency Current Transformer
HFCT Ø 140mm
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Techimp Clamp High Frequency Current Transformer model 140 is an inductive sensor for partial discharge measurements. It is suitable for online /off line PD tests on : large diameter cables ; grounding rod bar ; etc. A TNC termination is available to connect the Clamp HFCT 140 to the TechImp PD analyzer : PDCheck , PDBase etc. The arrow indicates the requested input current (Iin) direction to get coherent output voltage (Vout) polarity respect to ground. When the sensor is installed with the arrow directed to ground, the detected voltage signal (Vout) has the same phase of the input current (Iin).
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Product
Frequency Response Analyzers
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The PSM range of instrumentation provide not just conventional frequency response measurements but can also be combined with an Impedance Analysis Interface to form a high accuracy impedance analyser, in the case of the PSM3750 this solution is able to provide impedance analysis up to 50MHz
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Reference Magnets
Series MT
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The reasonably priced WUNTRONIC standard reference magnets offer the possibility in a simple way of being able to calibrate or to check magnet measuring instruments like Gauss Meter/Tesla Meter with the respectively accompanying probes in a defined magnetic field.
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Product
UV & Visible Frequency Mixing Module
SolsTiS EMM
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The SolsTiS External Mixing Module (SolsTiS EMM) provides fully automated tuning in the visible (480-670 nm) and IR (1.1-4.5 µm) with further extensions options into the UV (300-350 nm). It delivers high stability sum and difference frequency mixing of SolsTiS wavelengths with other single frequency sources, primarily via high efficiency single pass mixing in PPLN. This all-solid state solution for wavelength coverage supersedes dye lasers, removing the hazards and instabilities associated with this toxic gain material. SolsTiS EMM delivers unparalleled performance and reliability, enabling you to automatically tune and scan over a broad wavelength range.
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Product
Frequency Response Function
FRF
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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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Product
AC Reference Generators
SR25
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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
Ferrite Low Frequency Transducers
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Ceramic magnetic design able to provide high-power handling and low distortion for the most demanding speaker manufacturers.
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Product
Low Phase Noise Reference Source
96270A
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The 96270A RF Reference Source is the simplest, most accurate and cost-effective single instrument for calibrating spectrum analyzers and RF power sensors and more, up to 27 GHz.
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Product
FOCL Reference Signal Modem
VCH-607
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FOCL reference signal modem VCH-607 is designed to receive and transmit electrical signals with a nominal frequency of 100 MHz through a fiber-optic system and generate electrical signals with a nominal frequency of 5 and 10 MHz, coherent with the input signal. Reception and transmission through the FOCL is provided using a pair of modems: one is configured as a Transmitter and is installed at the end of the FOCL where the signal source is located, the second is configured as a Receiver and is installed at the opposite end of the FOCL.
