Variable Attenuators
Provide changeable resistance values.
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Product
Programmable Step Attenuator, DC to 50 GHz, 60 dB, 10 dB steps
84905M
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Keysight now offers a family of higher frequency attenuators for your communications and aerospace applications. Combining low insertion loss with long life and excellent repeatability, these attenuators safeguard your test platform from failures, recalibration, downtime, and lost production.
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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
Attenuators
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Reduces the amplitude of a signal without appreciably distorting its waveform.
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Product
Coaxial Fixed Attenuator, DC to 18 GHz
8493B
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The Keysight 8493B coaxial fixed attenuator provides precision attenuation, flat frequency response, low SWR over broad frequency range at a low price. The attenuator is available in nominal attenuations of 3 dB and 6 dB, also 10 dB increments from 10 dB to 30 dB. This attenuator is swept-frequency tested to ensure it meets specifications at all frequencies. Calibration points are provided on a nameplate chart attached to each unit.
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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
Voltage Control Attenuator
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RF Lambda’s voltage control attenuators allow for precision control of RF signals. With a voltage variable control pin the signal can be fine-tuned as needed by the system. These attenuators offer fast response time and wide band operation. Hermetically sealed options are available upon request.
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Product
Coaxial Attenuators Set
11581A
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The Keysight 11581A contains a set of four Keysight 8491A attenuators 3, 6, 10 and 20 dB with type-N connectors, furnished in a walnut accessory case. This set is ideal for calibration labs or where precise knowledge of attenuation and SWR is desired.
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Product
Variable Optical Attenuators
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Shanghai Joinwit Optoelectronic Tech,co.,Ltd
Joinwit Variable Optical Attenuators
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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
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
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
RF Attenuators
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Home > Products > Test and Measurement > AttenuatorsBird - The RF ExpertsRF AttenuatorsBird 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
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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Digital Attenuator
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Chengdu KeyLink Microwave Technology Co., Ltd.
The products can be used in microwave electronic components. Its attenuation values are determined by the input TTL/LVTTL control signal. So that the link can be achieved the desired gain or loss value.KeyLink's digital attenuators can be categorized as follows.
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Product
Fixed Attenuators
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A fixed 1 dB attenuator from Pasternack. This 1dB attenuator is an in-line, resistive PI attenuator pad design. Our coaxial 50 Ohm attenuator is manufactured to precise RF / microwave industry specifications.
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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
Variable Power Supply
VS3
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The VS-3 power supply is a very convenient portable, non-isolated “variable source” from 0 volts to 150 Vac or 0 volts to 150 Vdc and rated for up to 3 amps, thus the name VS-3. It is comprised of an illuminated voltmeter that reads to the first significant digit, AC variable system output voltage, DC variable system output voltage, logic output voltage and one sense (continuity) contact monitoring points. Banana jacks for connection of test leads are spaced at intervals that allow the use of dual banana test plugs if desired. The VS-3 is protected by two levels of overcurrent protection; AC input, and ground fault protection by a GFCI. All circuitry is housed inside a custom designed case made from 16 gauge steel. An Internal fan dissipates heat buildup and exhaust through louvered side vents built into the case. The carrying handle is designed with a “spring return to rest” position and is padded for comfort. The case has been sized for optimum portability and is balanced from the handle during transportation. The case has a powder coated finish that is scratch, chemical and weather resistant. Rubber padded feet support the case when in the upright position and a convenience receptacle is located on the side of the case. A unique feature of the VS-3 is that it contains “Magnet Packs” on the back of the case. These “Magnet Packs” can support the VS-3 and allow it to “hang” from any magnetic metal surface. The VS-3 can be powered by our UPS system, eliminating the need for an extension cord. The ability to magnetically attach the VS-3 near the source of connection and eliminating the need for an extension cord makes the VS-3 a “must have tool” for technicians.
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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
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
Programmable Attenuators
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JFW offers 50 Ohm and 75 Ohm programmable attenuators with either relay or solid-state designs. 50 Ohm Relay Step Attenuators, 50 Ohm Solid-State Step Attenuators (TTL), 50 Ohm Solid-State Step Attenuators (USB), 75 Ohm Relay Step Attenuators, 75 Ohm Solid-State Step Attenuators, Analog Programmable Attenuators, High Power Solid-State Step Attenuators.
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Dual Attenuator
V859
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The Model V859 is a passive dual section attenuator housed in a 1-unit VME module; the module does not require any power supply since it is made up of resistive cells
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Product
Variable Optical Attenuator - MATRIQ
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The VOA MATRIQ Series is a MEMS-based variable optical attenuator with fast attenuation speed, low insertion loss and in-built power meter. Its advanced power stabilization function lets you set and maintain the output power stability even when the input power fluctuates.It is available in singlemode, multimode and polarization maintaining fibre types and various wavelengths to suit a wide range of applications.With a stackable, space-saving design and intuitive software controls make it a valued addition to the optical lab or test bench.
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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
POWER ATTENUATORS
TYPE ATF
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National RF’s Type ATF Power Attenuators were designed to allow interfacing of linear power amplifiers to RF exciters, where a specific amount of drive to the amplifier is prescribed. Often, however, drive from the RF exciter exceeds this minimum prescribed level and some form of power attenuation must be used in order to not damage the input of the power amplifier. National RF’s type ATF-3 offers 3 dB of power attenuation (1/2 of the power) when used between the exciter and the amplifier and will handle an input power of 132 Watts, RMS (continuous power) while providing about 66 Watts RMS output power, when it is terminated into 50 ohms. In practice, the ATF-3 attenuator will handle exciters achieving Peak Envelope Power levels (PEP) in the area of 200 to 250 Watts while providing half of that power to the load. For less attenuation requirements, the ATF-1 and ATF-2 offer 1 and 2 dB of attenuation, respectively.
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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 Gain High Speed Linear Amplifier
F30PV
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The F30PV is a very fast general purpose linear amplifier having a variable amplification of 0-10 times and capable of bipolar voltage output of ±35V. 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
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.
