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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Benchtop Rubidium Frequency Standard
FS725
Stanford Research Systems, Inc.
The FS725 integrates a rubidium oscillator (SRS model PRS10), a low-noise AC power supply, and distribution amplifiers in a compact, half-width 2U chassis.
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Programmable Wide Frequency AC Power
PWF series
The PWF series is a family of programmable AC power source with wide range of adjustable frequency, developed for aerospace or military’s 400Hz and 800Hz test applications, such as lab use, compliance test, and quality assurance. The PWF series consists of L series and M series, which have different output frequency range. L series provides 45~500Hz and 0~300V output, and M series provides 300~800Hz and 0-150V output. Users can select communication interfaces of RS-485, RS-232, and optional GPIB. The PWF series also have programming sequence functions of STEP and GRADUAL modes, three phase independent control, phase angle control, and disturbance function.
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HF Frequency Counter LXI, GPIB/IEEE48
53210A
For fast and accurate frequency and time-interval measurements, you need reliable devices in research and development. The Keysight 53210A HF frequency counter meets the requirements with its high accuracy, bandwidth and speed. Depending on the application and budget, choose one of the three available models. The connection to the PC is via USB, Ethernet/LXI or via GPIB.
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Frequency Hopping Spread Spectrum
FHSS
Futaba introduced FHSS (Frequency Hopping Spread Spectrum) systems in 2010, to offer modelers a less expensive way to enjoy 2.4GHz dependability. Other advantages include extremely low latency, exceptionally fast frame rates, transmitters with no external antennas and low-cost receivers with Easy Link convenience.As the name implies, the transmitter signal of an FHSS system literally hops from frequency to frequency in a pseudorandom sequence. The combination of frequency hopping with Futaba's advanced algorithms creates 100% frequency security.
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Voltage References
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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High Frequency Insulation Tester
HFIT 7.0
The MEDTEQ high frequency insulation tester is a popular device for evaluating compliance with IEC 60601-2-2 and the characteristics of insulation at high frequency
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2-18GHz Instantaneous Frequency Measurement Unit
DR024-F2
Teledyne Defence & Space’s Instantaneous Frequency Measurement (IFM) module, also known as a Digital Frequency Discriminator (DFD), offers high speed frequency measurement across the full operating bandwidth.The IFM measures the frequency of RF signal present at its input and presents a result at its output as digital data. The RF input signal is conditioned by an RF amplifier that provides sufficient drive for the frequency resolving circuits. The raw video from the resolvers is digitised and processed into the required output format. There is additional timing and control circuitry which initiates the measurement process and provides handshake data to the host system processor.
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2-18GHz Instantaneous Frequency Measurement Unit
DR073
Teledyne Defence & Space’s Instantaneous Frequency Measurement (IFM) module, also known as a Digital Frequency Discriminator (DFD), offers high speed frequency measurement across the full operating bandwidth.The IFM measures the frequency of RF signal present at its input and presents a result at its output as digital data. The RF input signal is conditioned by an RF amplifier that provides sufficient drive for the frequency resolving circuits. The raw video from the resolvers is digitised and processed into the required output format. There is additional timing and control circuitry which initiates the measurement process and provides handshake data to the host system processor.
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Hydrogen Frequency & Time Standard
CH1-1033
The hydrogen frequency and time standard Ch1-1033 is designed for precision storage and reproduction of the size of frequency and time units as part of measures and reference complexes. Main areas of application: – public service of time and frequency; – ground control complexes of radio navigation systems; – radio interferometry with extra long base.
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Low Frequency Generator
LFG-200
LFG-200 is a cable test van-mountable signal generator used as part of a cable tracing and fault location set for the following applications.
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Xytronic Three-Phase Reference Standard +/- 0.04%, +/- 0.02%, +/- 0.01%
RADIAN RX-30, RX-31 and RX-33
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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Reference Clock T Connector
780540-01
The SMA-SMA-SMA T Connector, sometimes referred to as the Reference Clock T Connector, connects RF wireless test devices and PXI modular instruments to other accessories. It is a 50 ohm … impedance connector that measures 0 GHz to 10 GHz.
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Frequency Generation
With expertise ranging from DDS down to VCO-based oscillators, CAES can provide for all of your frequency generation needs. Our extensive library of designs includes analog and digital solutions across a full range of frequencies and are well-suited for radar, missiles, electronic warfare, space and 5G communications applications.
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Low Phase Noise Reference Source
96270A
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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Universal Frequency Counter LXI, GPIB Interface
53230A
For fast and accurate frequency and time-interval measurements, you need reliable devices in research and development. The Keysight 53230 universal frequency counter meets the requirements for this with its high accuracy, bandwidth and speed. Depending on the application and budget, choose one of the three available models. The connection to the PC is via USB, Ethernet/LXI or via GPIB.
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High Frequency Insulation Tester
HFIT 8.0
The MEDTEQ HFIT 8.0 is intended for high frequency insulation testing against IEC 60601-2-2. This version includes in-built metering and automatic functions to make testing easy not only for design and laboratory testing, but also suitable for regular production testing.
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High Frequency Noise Simulator
SKS-H04GA
Shanghai Sanki Electronic Industries Co., Ltd.
The high-frequency noise simulation generator is an EMC test instrument that reproduces high-frequency noise with a fast rise time when the switch is turned on/off. Since the pulse rise time is less than 1ns and contains wide bandwidth noise, it is very suitable for reproducing malfunctions. The line noise entering the power line and the induced noise entering the communication line can be reproduced, and the performance evaluation of the malfunction and function degradation of electronic products can be performed.
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Frequency Response Analyzers
Sleuth RA-Series
The Sleuth RA-Series is at home in any environment as well. It's 1-U high form factor, allows for compact desktop use or, it can be mounted in a rack with optional brackets. When attached to a modest user provided Windows PC (desktop or laptop), it becomes a powerful ally in your toughest design, test or trouble-shooting requirement.
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Switchable Fixed Frequency Synthesizer
EXP Series 2.25" x 2.25" x 0.6"
*Connectorized Package *Switches Between Multiple Fixed Frequencies *Exceptionally-Low Phase Noise *DRO Replacement *High Vibration Design
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Frequency to Voltage Converters
Encore Electronics offers a complete line of frequency to voltage converters ranging from the economically priced and compact DIN rail mounted Model FL228 to the rack mounted Model 225. For applications requiring performance between these two models, we now offer our FL236 DIN-rail packaged Digital Frequency/Voltage converter, featuring fast response time, low power and compact footprint.
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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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Frequency Counters
Combines a calibrated RMS RF Power Meter, a wide-band frequency counter, and a RF Signal Generator into one miniature USB device. Incredibly useful in production verification environments and other automated test setups.
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Programmable Voltage Reference Plug-In
ProDAQ 3202
The ProDAQ 3202 voltage reference card is used in the ProDAQ 3180 ultra-performance motherboards and LXI function card carriers. The ProDAQ 3202 voltage reference card is plugged directly onto the motherboard or carrier and can distribute the reference voltage to all ProDAQ function cards via two signal lines. This allows the distribution as a differential signal to overcome possible noise pick-up.
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FOCL Reference Signal Modem
VCH-607
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.
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LXI High Frequency Matrices
Pickering's LXI high frequency (HF) matrix modules are suitable for switching frequencies up to 50MHz. They have an impedance of 50 and uses SMB signal connectors or with a larger case size is uses BNC connectors. This HF matrix is designed to provide a simple and scalable bidirectional matrix for radio frequencies and is intended for the easy construction of high performance bidirectional matrix switching systems.
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Personal RF Detection Meters, High Frequency
Personal RF Detection Meters from Sensory Perspective Ltd
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Ultra-Low Noise, Precision Voltage Reference
ISL21090
The ISL21090 is an ultra-low noise, high DC accuracy precision voltage reference with a wide input voltage range. The ISL21090 uses Renesas' advanced bipolar technology to achieve sub 1.0µVP-P (1.25V option) 0.1Hz to 10Hz noise with an initial voltage accuracy of 0.02% (2.5V option).
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VXI Rubidium/GPS Frequency Standard
3352A Series
The Racal Instruments™ 3352A Rubidium frequency standard module and the 3352A-GPS, its GPS-disciplined companion, set a new standard for high density functionality in a single width VXI module. Using ANSI Standard M-Module building blocks, the 3352A series integrates the functions of a Rubidium oscillator and clock distribution together with an optional trigger distribution module and an optional digital I/O (DIO) module.
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Timing and Frequency Solutions
Arbiter Systems®, Inc. delivers world class GPS based precision timing and frequency solutions for a variety of evolving markets. Engineered and manufactured in the USA, Arbiter precision time clocks and supporting products surpass industry standards in terms of accuracy, flexibility, reliability, connectivity and value, and are as at home in the substation as they are in the laboratory.
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High Frequency (RF) Testing
C.C.P. Contact Probes Co., LTD.
CCP designs high frequency testing probes, coaxial probe sockets and pressurized conductive rubber sockets.





























