Variable Attenuators
Provide changeable resistance values.
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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
Unipolar Variable Gain High Speed Amplifier
F70PV
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The F70PV is a very fast, unipolar, linear amplifier having a variable amplification of 0-10 times and capable of voltage output of +70V. Any functiongenerator or arbitrary waveform generatoror any othe signal source can be used as an input device. The amplifier's output is linear from DC up to ca 10 megahertz range. It can be used in a wide range of high speed applications.
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Product
Regulated Variable 0-300VAC Power Supply
300VAC
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The most important features of the power supply is its ability to hold a constant voltage as the power lines fluxuate and the load fluctuates. Used for testing testing high and low line conditions for any AC powered device.
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Product
Attenuator Interconnect Kit, SMA
11716C
Interconnect Adapter
The Keysight 11716C quickly and conveniently connects 1 dB step and 10 dB step attenuators together to achieve greater dynamic range with 1 dB steps. The Keysight 11716C can be utilized to connect any of the two Keysight 8494/95/96 attenuators in series.
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Product
Fixed Attenuators
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BroadWave attenuators reduce the strength of an RF signal without appreciable distortion of its waveform.
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Product
Variable Reluctance Absolute Pressure Sensor
AP10
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The AP10, Absolute Pressure Sensor, is designed for low and medium pressure measurements, to laboratory accuracy, of corrosive liquids and gases. In typical AC excited bridge circuits, this transducer delivers a full-scale output of 40 mV per volt at 3kHz. The unit operates with carrier systems including the Validyne CD15 sine wave carrier demodulator and CD16 miniature DC input DC output carrier demodulator to produce a high level analog DC output suitable for recording and control.
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Product
Attenuator Modules
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The Analog Devices portfolio of wideband digital attenuators and voltage variable attenuators (VVAs) modules helps meet designers’ diverse needs. Low cost, high accuracy control, and small package options provide solutions for RF and IF applications, including the space, communications, and military industries.
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Product
PXI Amplifier And Attenuator Modules
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Pickering's PXI Amplifier and Attenuator Modules include our accurate DC to 3GHz programmable attenuator has a 1dB step resolution, allowing it to adjust signal amplitudes for optimum measurement by other devices. The other programmable attenuator available has a bandwidth between 10MHz and 6GHz available in triple or hex formats.
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Product
Single Variable Choke Coils
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Supreme Instrument Laboratories
Suitable for operation on 220 / 240 V, A.C. 50 Hz. working on air gap separation by increasing / decreasing the air gap with the help of a hand wheel mechanism, mounted on thick wooden / bakelite sheet with castor wheels for easy transportation.
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Product
Voltage Control Attenuator
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Voltage variable attenuator offering infinite attenuation precision and broadband performance
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Product
Variable Constant Differential Flow Controller
VCD 1000
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The Porter Model VCD 1000 flow controller is precision-engineered to control low gas flows at constant mass flow rates regardless of changes in downstream pressure.
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Product
RF Attenuators
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Bird manufactures a broad spectrum of devices from 2 W to 4000W. Our resistive product portfolio includes air-cooled, water-cooled, oil-dielectric, convection cooled, and conduction cooled RF attenuators with a wide range of connectors and attenuation values.
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Product
Variable Fiber Optic Attenuator
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Variable fiber optic attenuator could help simulate distance or actual attenuation in the fiber optic testing work by inserting a calibrated attenuation into the link. By using the variable fiber optic attenuator, technicians could verify the power margin received by testing the fiber optic link power budget. Variable fiber attenuator can help user vary the light power injected from a light source into the optical fiber. Important parameter of variable fiber attenuator include its insertion loss, reflection loss and attenuation range.
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Product
Waveguide Tunable Attenuators
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*Low Insetion Loss*Full Waveguide Band Coverage*Precise Adjustment*High Maximum Attenuation
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Product
USB/Ethernet Control Step Attenuator
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RF Lambda’s USB / ethernet control step attenuators utilize the same RF core as our standard digital attenuators only they incorporate a USB / ethernet controller to allow users to easily setup the control from any PC or network.
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Product
Variable Pipe Frame Slide Anvil Type Outside Micrometer
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Light-weight design using the pipe-structure frame Allows easy measurement of even a large workpiece.
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Product
C-Band DWDM VGA without Mid-Stage Access Next-Generation Variable Gain EDFA
HWA4500 (With SNMP)
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HWA4500 series is a next-generation variable gain EDFA, 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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Digital control attenuators with TTL parallel control offering fast switching speed and high attenuation accuracy
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Product
Attenuator Interconnect Kit, Type-N
11716A
Interconnect Adapter
Quickly and conveniently connect 1 dB step and 10 dB step attenuators together to achieve greater dynamic range with 1 dB steps. The Keysight 11716A interconnect kit contains a rigid RF cable, mounting bracket, and necessary hardware to connect any pair of Keysight 8494/5/6/7 attenuators in series. Attenuators must be ordered separately.
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Product
Aging and Optical Attenuation Tester
LS822
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• Build-in DC Power Supply: Forward current preset: 0.1-800mA (special order) Range of forward voltage: 0.1-20.00V • Range of luminous intensity: 1mcd-3,000cd • Range of luminous flux: 1mlm-9,999,000lm(depends on the size of sphere) • Accuracy of photometer: class1; accuracy of electricity: class0.5 • Aging time: 9999Hours 59Munites 59Seconds • Tolerance of time: ±1S/10H • Record time: 16000times • Hold data automatically when the power is off and continue to work automatically when the power is turned on.
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Product
Electromechanical Programmable Attenuators
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BroadWave manufactures single section 6 dB to 8 section 0 – 127 dB programmable attenuators. •Voltage control and external TTL control •RF Connectors: BNC, N, SMA and TNC •50 and 75 Ohm
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Product
0-600 Amp Variable Carbon Pile Load Tester
6039
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• Test batteries up to 1200 CCA• Fine threaded shaft for fine adjustment• Temperature compensation chart• Easy to read digital voltmeter & ammeter combine with the versatility of a carbon pile load• Spring loaded to shut-off automatically• Unique curved discs to prevent hot spots• Tests all battery types• Made in USA of US and Global Components
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Product
Telephone Attenuators & RFI Filters
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Despite the growth in digital and fiber systems, many telephone companies still require basic line treatment products. Wilcom's hard-to-find line treatment products help the telecommunications industry deliver the performance the customer expects. Products include line powered amplifiers and RFI filters.
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Product
Coaxial Programmable Attenuators
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Coaxial attenuators are constructed with passivated stainless steel for durable use in both engineering labs and production line environments. These coaxial attenuators are designed and manufactured for low VSWR, low insertion loss and high attenuation value accuracy. The standard offering covers the frequency range of DC to 110 GHz and includes various interface options from 2.4 mm to 1 mm connector types as well as both male and female interfaces. The power handling of standard models is 0.5 to 1 watt continuous wave (CW). Higher power handling levels and different attenuation values and connector types from those listed below can also be requested.
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Product
50 GHz Digital Setp Attenuator
PE43508
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The PE43508 is a 50Ω, HaRP™ technology-enhanced, 6-bit RF digital step attenuator (DSA) that supports a wide frequency range from 9k to 50 GHz. It supports 1.8V control voltage and optional VSS_EXT bypass mode to improve spurious performance, making this device ideal for test and measurement, point-to-point communication systems, and very small aperture terminals (VSAT).
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Product
Normalised Site Attenuation
NSA
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Normalised Site Attenuation (NSA) is measured in accordance with CISPR 16-1-4 and ANSI C63.4 in semi and fully anechoic environment.
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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
Variable Frequescy Resonant System
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Yangzhou Power Electric Co., Ltd
Variable frequency resonant system for testing of long HV cables and GIL, for testing of short HV cables and GIS/GIL and for testing of long MV cables are designed for the generation of alternating current (AC) high voltage (HV) by resonant circuits with variable frequency, available of outdoor design.





























