Variable Attenuators
Provide changeable resistance values.
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Product
Attenuator
Attenuator VXI
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The module consists of three blocks:*attenuation unit;*KU block*switching unit
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Product
Programmable Step Attenuator, DC to 40 GHz, 0 to 70 dB, 10 dB Steps
84907L
Attenuator
The Keysight 84907L programmable step attenuator offers coaxial measurements to 40 GHz in a compact, rugged design. It offers repeatability of better than 0.03 dB, excellent life greater than 5 million switching cycles per section) and an attenuation range of 0 to 70 dB in 10-dB steps. This latest design evolution sets new standards for size and performance. High attenuation accuracy and low SWR are achieved through the use of miniature thin-film attenuation cards composed of high-stability tantalum nitride film of saphire substrate. Insertion loss is outstanding, with with only 2,4 dB of loss at 40 GHz. The compact size of the unit, 35% smaller than the Keysight 8495/7 (26.5 GHz) family, allows for easy integration into instruments and ATE systems.
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Product
Attenuator
J2140A
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Characteristic RatingMaximum Input Level +20dBm3dB Frequency Range DC ~ 50MHzMaximum VSWR 1.3Attenuation Accuracy 0.2dB
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Product
Programmable Digital Attenuator
LDA-602EH
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The LDA-602EH has a large attenuation range of 120 dB with an exceptional 0.1 dB step size, allowing for both precision and accuracy during fading tests or device characterizations. This attenuator also features a fast 15 us switching speed, an operating temperature from -30oC to 50oC, a maximum RF input of +28 dBm, and is priced at $875. The LDA602-EH operates with a low insertion loss of 9 dB to 6 GHz, an input IP3 of +55 dBm and a typical VSWR of 1.3:1. Easily programmed for ATE applications, the LDA digital attenuators are a cost effective solution whether you are in engineering, the production test lab, or in the field. Units are ROHS compliant and can be used with any PC or laptop computer with USB 2.0 port (or powered USB hub) and Windows operating system. Lab Brick Signal Generators are provided with easy to use Lab Brick GUI software, 32 and 64 bit API DLL files, LabVIEW and Linux compatible drivers.
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Product
Variable Area Flowmeters
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Variable area flowmeters are the most cost effective solution for almost all applications involving the measurement of industrial process liquids, gases or steam. ABB´s variable area flowmeters are reliable, flexible and simple. They meet the application requirements by featuring a wide range of design varieties and sizes. Technology proven, they offer a long life and high reproducibility. Variable area flowmeters are excellent mechanical back-up meters because no external power supply is needed.
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Product
CAT-5 Video Variable Filters
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It is often beneficial to use a video driver at the output of a video encoder for power savings, line driving, and additional circuit protection. The video driver is typically configured as an active filter, also known as a reconstruction or anti-imaging filter. The purpose of the reconstruction filter is twofold: it blocks the higher frequency components (above the Nyquist frequency) that were introduced into the video signal as part of the digitization process and provides gain to drive the external 75 Ω cable to the video display.
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Product
Manual Step Attenuator, DC to 4 GHz, 0 to 11 dB, 1 dB steps
8494A
Attenuator
The Keysight 8494A, dc to 4 GHz manual step attenuator, offers exceptional repeatability and reliability. Attenuation is provided in 1 dB steps from 0 to 11 dB. Precision gold-plated leaf springs ensure long-life (over 5 million cycles) and very high attenuator repeatability (typically 0.01 dB). To improve measurement accuracy, NIST traceable data (SWR and attenuation) is available as Option UK6. Custom step attenuator/switch combinations are possible. The Keysight 11716A/B/C interconnect kits provide quick connection of Keysight 8494/5/6/7 1 dB and 10 dB step attenuators in series for greater dynamic range with 1 dB steps.
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Product
Fixed Attenuator (Waveguide)
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RF Lambda’s fixed waveguide attenuators are used to attenuate RF signals with a waveguide interface. They come in a variety of different frequencies and power levels depending on the application.
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Product
Fixed Attenuator (Waveguide)
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Fixed waveguide attenuator in a variety of freuqencies, power levels and attenation values.
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Product
Variable Gain Amplifier
VGA
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RF Lambda’s variable gain amplifiers (VGA) are standard amplifiers which include a gain control pin to allow the customer to tune the gain for various applications without sacrificing performance and eliminating the need to use a separate amplifier and attenuator. Hermetically Sealed options are available upon request.
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Product
Fixed Attenuator Pads
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SemiGen RF/microwave fixed attenuator pads feature precise resistor films and superior metalization resulting in superior performance and consistency. Our advanced thin-film technology allows our parts to have full side wraps for SMT installation and a complete grounding backside for ease in attachment, as no ground bonding is requried. Top side contacts for the input and output make these ideal for standard RF/microwave assembly techniques. They are available as MIL PRF 38534 “H” & “K” space screened units. Custom values are easy to fabricate and design allowing users to design in a specific value of choice.
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Product
PXI Hybrid Amplifier/Attenuator
M9352A
Attenuator
The M9352A modules are custom built and tested to nominal* performance characteristics. Full regulatory and safety testing has been performed. This product has the same warranty and support services as other Keysight instruments. Because it is custom built, Keysight recommends checking availability and delivery information before ordering the product.
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Product
Attenuator
RFATT AXIe-0
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*Dual channel AXIe attenuator with frequency range from 9 kHz to 10 GHz.*The module is designed to work as part of information measuring systems as a normalizer of radio frequency signals (power control: signal amplification or attenuation).
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Product
Variable Tone Generator
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> 60 Hz to 18 kHz approx> 1.3 VAC P/P> Frequency & Level Pots> Sine or Square Wave> 4.5 x 2.5 x 1.1 inches> 9 volt battery operation
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Product
Variable Gain Optical Amplifier Module
VGA4700-FM06
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai VGA4700-FM06 series is a next generation variable gain optical amplifier module, which with the most excellent performance and most completes functions in the market. It adopts nowadays most excellent optical performance, most advanced electronic technology and most complete software functions. Remarkable transient suppression control technology and heat management control technology let many complicated optical functions achieved. It is the most versatile multifunction optical amplifier in the market.
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Product
Digital Control Step Attenuator
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RF Lambda’s digital control step attenuators are used to fine tune an RF signal using TTL control lines. Fast response time, various step sizes and overall attenuation ranges make these suitable for a variety of RF applications. Hermetically sealed options are available upon request.
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Product
RF Attenuators
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A passive electronic component that reduces the power of an RF signal in a controlled way.
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Product
Variable AC/DC Power Supply
UPS S2
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The Vanguard Universal Power Supply Series 2 (UPS-S2) is designed and produced to meet a utility company’s substation needs for an independent AC/DC power source. Both the AC and DC Voltage sources are capable of supplying 10 amperes continuously.
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Product
Handheld Variable Optical Attenuator
VOA100
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Shanghai Tarluz Telecom Tech Co., LTD
VOA100 handhold optical variable attenuator is used for continuously variable optical signal attenuation. As the VOA100 is used in the laser system for the on-line testing, therefore, it can be used in the digital system of communication devices (such as: PHD, SDH) and also in the system of adopting analog modulation (CATV)
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Product
Attenuators
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Optical attenuators reduce the intensity of transmitted light uniformly across the spectrum. Applications include preventing too much light from overloading a receiver.
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Product
Fixed Attenuator
FAXE
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Fixed Attenuators are waveguide components for introduction of some particular attenuation value in to the waveguide network for signal leveling or reflection compensation. The attenuators have two types of design: with resistive plate in the waveguide diagonal plane or using coupling technology. The FAXE 3, 6, 10, 15, 20, 30 dB attenuators are available in waveguide bands from 18 through 225 GHz. The FAXE Fixed Attenuators can be used as laboratory Standards against which other instruments or devices are calibrated in case the parameters of these Fixed Attenuators are stable enough and were measured with appropriate accuracy.
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Product
VARIABLE TRANSFORMER DC POWER
208163V
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Motorized Variable Transformer Controlled Power Supply, P/N 208163VInput power: 208 VAC, 6 Amps, 3 PH, 60 HzOutput: 0 to 120 VDC, 16 Amps max.Ripple: 5%Manual control with variable transformerCircuit breaker / ON OFF on the 208 VAC, 3 PH input lineProtection fuse provided on the outputPOWER ON lightIndoor enclosure: 24H x 20W x 9DVoltmeter and ammeter are installed to monitor the output.All input/output connections are available inside the enclosureSystem includes main unit and remote assembly.
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Product
Manual Step Attenuator
WATT-3SM352
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Warison provides wide range of wireless passive coaxial components, includes Adapters, Attenuators, Coaxial Cables Assemblies, DC Blocks, Filters, Isolators & Circulators, Probes & Terminations. With outstanding capability of development and design, Warison is able to custom the spec based on customers demand. All Warisons products pass inspection and electronic performance test before shipping out. It is our principal to deliver the best solution to all our clients.
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Product
USB/RS232/SPI Programmable Attenuator
RUDAT-13G-90
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Mini-Circuits’ RUDAT-13G-90 is a general purpose programmable RF attenuator supporting frequencies from 10 to 13000 MHz with attenuation from 0 to 90 dB in 0.5 dB steps. Its unique design maintains linear attenuation change per dB, even at the highest attenuation and frequency settings. The attenuator is controlled via USB, RS232 or SPI. It comes housed in a compact, shielded metal case with SMA(F) input/ output RF ports (RF ports are interchangeable), a USB type Mini-B socket, and a 9-pin D-sub(F) RS232 and SPI port. Power can be supplied via either USB or the D-sub port. The RUDAT-13G-90 is supplied with our easy-to-install, user-friendly GUI software, API objects for Windows® environments, and complete programming instructions for 32 and 64 bit Windows® and Linux® operating systems. See p. 9 for a complete list of included accessories.
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Product
Chip-Type Attenuators
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Panasonic Industrial Devices Sales Company of America
Chip-Type Attenuators for high-frequency signal attenuation, level adjustment or matching improvement.
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Product
Very Low Pressure Variable Reluctance Sensor
DP103
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The Validyne DP103 is designed for exceedingly low differential pressure measurement applications where high accuracy is required under rough physical conditions. With full scale ranges down to -0.008 psid (-0.56cm H2O), this instrument is being used in the measurement of very low flow rates of gases where symmetrical pressure cavities are required for dynamic response. It is also used in very small leak detection and pressure null detection systems.
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Product
4 Channel Variable Gain Fast Amplifier
V974
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The Mod. V974 is a 4 channel fast rise time amplifier housed in a 1-unit VME module; each channel features a voltage gain adjustable from 1 to 10 in x1 steps. Channels are non-inverting and bipolar: they amplify both positive and negative signals.
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Product
Millimeter-wave and Microwave GaAs Attenuators
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Keysight Technologies provides MMIC attenuators ideal for microwave radio, aerospace and defense, and instrumentation applications.
