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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Dynamic Frequency Selection
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MET is a leader in performing DFS testing on a variety of WLAN products for FCC, ISED, EU and Japan requirements.Many countries require wireless devices operating in unlicensed 5 GHz bands to have the capability to detect interference with other technology sharing the spectrum (such as military and weather radar systems) and automatically switch over to another frequency.
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Frequency & Pulse Distribution
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Timetech frequency distribution amplifiers and pulse distribution units.
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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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Digital Frequency and Multifunction Counter
IBL-FC1300
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International Biological Laboratories
This is an Intelligent Dual Channel Frequency Counter and has 8 digits LED Display. It measures frequency up to 1.3 GHz.
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Reference Meters
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Whether standard or high precision, ThermoWorks handheld meters feature rugged housing and best-in class accuracy across a variety of temperature ranges. Choose from integrated systems or meters that accept multiple probes, single or dual channel meters, alarms or reference models. Perfect for BBQ or sous-vide applications, dairy processing and meat processing, pharmaceutical labs, concrete curing, health departments, and for line checks, critical control point management, and HACCP checklists.
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Standard 3.06 (86.70) - 4.00 (113.40) RF Probe For SMA Connectors
CSP-30ES-013
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Nominal Impedance (Ohms): 50Current Capacity (Amps) @ 20° C: 1.00Bandwidth @ -1dB (GHz): 35.00Return Loss @ -20dB (GHz): 22.00Test Center (mil): 328Test Center (mm): 8.33Recommended Travel (mil): 100Recommended Travel (mm): 2.54Full Travel (mil): 200Full Travel (mm): 5.08Overall Length (mil): 1,033Overall Length (mm): 26.24Rec. Mounting Hole Size (mil): 297Rec. Mounting Hole Size (mm): 7.54
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500VA 1KA 2KVA 3KVA 5KVA Variable Frequency Source
9001
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Shenzhen Chuangxin Instruments Co., Ltd.
500VA 1KA 2KVA 3KVA 5KVA variable frequency source.
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Standard 3.74 (106.00) - 14.35 (407.00) High Frequency Probe
K-50B-QG-75
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Nominal Impedance (Ohms): 50Bandwidth @ -1dB (GHz): 12.00Return Loss @ -20dB (GHz): 3.00Test Center (mil): 550Test Center (mm): 13.97Full Travel (mil): 100Full Travel (mm): 2.54Recommended Travel (mil): 67Recommended Travel (mm): 1.70Overall Length (mil): 1,575Overall Length (mm): 40.00
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Erbium Fiber Frequency Comb
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Detailed description of item: The AOSense frequency comb is a low noise, polarization maintaining (PM) device. Key features include a PM fiber architecture centered at 1550nm with turnkey modelocking; a free-running linewidth of the carrier-envelope offset frequency of <200 kHz; a temperature-insensitive all-fiber f-2f interferometer exhibiting fceo beatnotes with SNR > 45dB (300kHz RBW); and dual fast/slow cavity length actuators with a bandwidth of >300 kHz. The repetition rate of the comb is factory set and allows matching across multiple combs for dual comb applications. The optics package incorporates an optical heterodyne module designed for locking to the comb to an ITU-specified laser reference. The comb is capable of supporting an Allan deviation of < 5 x 10-18 at 1 second and ~10-20 after 105 seconds. Add-on features include all fiber extensions to visible wavelengths corresponding to several atomic transitions. An integrated comb electronics package is currently under development.
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Frequency Dividers
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Holzworth Instrumentation, Inc.
The HX4210 was designed as a reference output translator for Holzworth's early RF Synthesizer designs. The key design requirement was to maintain the low phase noise /jitter characteristics the 100MHz calibrated reference output signal so that it could be utilized as a 10MHz laboratory reference standard.
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Frequency Dividers, Prescalers & Counters
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Analog Devices offers an extensive portfolio of frequency divider, prescaler, and counter devices suited to multiple applications and industries. This product line includes features such as programmable divide options, low additive SSB phase noise to help achieve excellent system noise performance, and single-ended inputs and outputs that help reduce component count and cost.
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Series Voltage References
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Analog Devices offers a broad line of series voltage references with low dropout, low power, and excellent line regulation. These devices are voltage references that are functionally similar to a three-terminal regulator. Some series voltage references are designed to also operate in shunt mode by biasing the output pin and leaving the input pin open circuit. Series mode voltage references have the advantage that they draw only load and quiescent current from the input supply.
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Ultra-Low Frequency Workstation
MK52 Series
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Providing Ultra-Low Frequency levels, the MK52 Series offers the ultimate low natural frequency performance for a wide range of high resolution instruments, such as analytical balances, cell injection, confocal microscopes, patch clamping, optical microscopes, wafer probing, sensor calibration, atomic force microscopes and other sensitive equipment requiring high isolation efficiency.
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Voltage to Frequency Converters
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Analog Devices has the widest range of voltage-to-frequency converters (VFCs) for the instrumentation, industrial, and automation markets. They are ideally suited for use in analog-to-digital conversion, long-term integration, linear frequency modulation and demodulation, and frequency-to-voltage conversion. ADI’s latest family of VFCs, the AD774x series, is based on Σ-Δ technology and provides high linearity in tiny packages at low cost.
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High Frequency LCR Meters up to 30MHz
11050
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Chroma Systems Solutions, Inc.
The Chroma 11050 Series HF LCR Meter is a precision test instrument designed to accurately measure and evaluate passive components at high speeds. Its measurement capabilities cover the primary and secondary parameters required for testing the inductance, capacitance, resistance, quality factor and loss factor of passive components. The HF LCR Meter has a broad testing frequency range 75kHz~30MHz/1kHz~10 MHz/60Hz~5MHz suitable for analyzing component characteristics under different frequencies. Its 0.1% basic measurement accuracy provides stable and highly reliable results. A fast 7ms measurement speed effectively increases productivity when working in an automated environment.
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Signature Model High Frequency Surge Testers
S
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Bench size performance & durability with PJ's exclusive/unique High Frequency Technology capable of testing the integrity of any turn to turn insulation, including low inductance windings. These Digital Surge Testers come standard with a rack-mounted, Tektronix TDS1002, 1 Billion Samples/sec, real time, programmable, storage oscilloscope.
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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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Reference Radiators / Comb Generators
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The Spectrum Generator is a family member of the Schwarzbeck pulse generators, which are used as pulsestandard world wide. Whilst the latter one uses a bounce free relay contact to discharge a coaxial lineto the load resistor, it uses a special avalanche transistor instead of the relay contact.
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High Frequency RF and Microwave USB Programmable Signal Generators
LMS Series
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The Lab Brick LMS series of high frequency RF and microwave USB-compatible, synthesized signal generators cover a frequency range from 0.5 MHz - 20 GHz with low noise, fast 100-microsecond switching time, and fine 100 Hz frequency resolution. They require no additional DC supply voltage and offer advanced features such as phase-continuous linear-frequency sweeping, internal/external 10 MHz reference, and optional pulse modulation. GUI software can track and control several connected signal generators, simplifying multiple-signal test setups. Each device stores settings in internal memory, allowing it to power up in a specific instrument state.
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2-18GHz Instantaneous Frequency Measurement Unit
DR058-F2
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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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Real Time MM-Wave Frequency Analyzers up to 180 GHz
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When millimeter-wave applications came into many domains of human activity, a need for precise measurements of signal frequency spectrum has become critical. This need is quite understandable when, for example, it concerns to exploring extraterrestrial radio-sources or micro/mm-wave background emission in radio-astronomy, or measuring chemical composition of the atmosphere through the molecular emission of different its components, plasma diagnostics or many military applications.
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Reference Electrodes
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Reference electrodes are widely used as: electrochemical measurements (CV, LSV, DPV, etc.) electrochemical devices (detectors for HPLC, biosensor, etc.)
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Reference Systems For UV-LED Production
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Konica Minolta Sensing Americas, Inc
UV-LED lab measuring stations are for testing new products or, e.g. building reference systems for UV-LED production. In order to cater for new measurement scenarios, the individual system components of the high-end portfolio from Instrument Systems are subject to ongoing technological improvement. -
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RF Mixers & Frequency Converters Overview
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Up and down conversion is often used because waveform generation in a transmitter is less expensive at lower frequencies and the dynamic range of analogue-to-digital converters in the receiver is higher at lower frequency.
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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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125 Mbps Low Frequency Bit-Error-Ratio Test System
OPBK125
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The OPTELLENT OptoBERT™ OPBK125 is a costeffective easy-to-use bit-error-ratio (BER) measurement system for testing components and systems in R&D and manufacturing environments as well as field installations. It incorporates a pattern generator, clock recovery circuits, and a bit-error-ratio analyzer in one compact module that provides electrical interfaces at data rates up to 125 Mb/s.
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Frequency Down Converters
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In digital signal processing, a digital down-converter (DDC) converts a digitized, band-limited signal to a lower frequency signal at a lower sampling rate in order to simplify the subsequent radio stages.
