Step Attenuators
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Product
Coaxial Fixed Attenuator, DC to 50 GHz
8490D
Attenuator
The Keysight 8490D 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 40 dB. This attenuator is swept-frequency tested to ensure they meet specifications at all frequencies. Calibration points are provided on a nameplate chart attached to each unit.
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Product
Coaxial Fixed Attenuator, DC to 18 GHz
8493B
Attenuator
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
Threaded Step Probes
Step Probe
Pin position sensing - adjustable height - custom designs - anti-jump solution.
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Product
Attenuation Control Unit, DC to 6 GHz, 0 to 121 dB, 1-dB Steps
J7201A
Attenuator
Designed for WLAN and WiMAX™ device manufacturing test and mobile handset base transceiver station (BTS) handover test.
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Product
Variable Optical Attenuator Module for Multimode Fiber Applications
81578A
Optical Attenuator
The Keysight 81578A variable optical attenuator is designed for multimode fiber applications and features lowest insertion loss and excellent wavelength flatness over a complete attenuation range of 60 dB, for characterizing optical network components for telecommunication and data communication in systems.
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Product
Step Probes
Step Probe
*Precisely controlled probe travel*Step tip geometry*Replaceable and non-replaceable versions*Plating options available
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Product
PXI/PXIe Solid State Attenuator, Hex, 6GHz, 50Ω, SMA
41-182B-006
Attenuator
The 41-182B-006 (PXI) and 43-182B-006 (PXIe) are programmable RF attenuator modules with 6 channels in 2 slots capable of inserting a signal loss of 0 to 31.75dB in 0.25dB steps. The attenuator uses solid state switches for a long service life and fast operation with minimum settling time and no signal bounce.
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Product
Variable Optical Attenuator - MATRIQ
Attenuator
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
Attenuators
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CAES offers a full range of RF Attenuators for your designs including analog and digital PIN Diode as well as Switched-bit Attenuators.
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Product
Attenuator / Switch Driver
11713E
Attenuator
The 11713E attenuator / switch driver is a GPIB-compatible (LXI) instrument capable of driving both Keysight programmable attenuators and RF switches (electro-mechanical and solid state).
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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
Fixed Attenuators
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Macom Technology Solutions Holdings Inc.
MACOM offers fixed attenuator bare die to be used in chip and wire assemblies. These products offer excellent return loss and flat attenuation from DC to 50 GHz. Attenuation values range from 0 to 20 dB.
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Product
PXI 5 Ch. Differential Hi Voltage Attenuator
41-661-001
Attenuator
High voltage attenuators designed to reduce the high output voltages commonly generated by some types of sensors. This is in order to produce manageable signal levels that can be acquired by typical data acquisition devices in a PXI system.
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Product
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
Attenuators & Loads
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*High power handling 100W with a wide range of available attenuation values*Very low PIM <- 160 dBc with excellent return loss performance*Support for 7-16 or 4.3-10 connectors and optional 19 inch rack mount kit*Designed and produced to ISO 9001:2008 certification standards for reliability and quality
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Product
Variable Attenuator
FTBx-3500
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Network equipment manufacturers and transceiver manufacturers know that variable attenuators are essential components of their test systems. They look for performance, user-friendliness, complete control of test parameters and advanced programming capability. EXFO’s FTBx-3500 Variable Attenuator combines innovative design techniques, high-quality components and meticulous calibration procedure. Ideal for bit error rate testing and system verification, the FTBx-3500 is the only variable optical attenuator (VOA) that offers a fully remote user interface (UI) and EXFO Multilink compatibility. It is also the only VOA on the market to offer a benchtop unit, which can be controlled remotely or using a touchscreen.
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Product
RF Attenuators
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Amphenol RF offers a growing Attenuator product line to meet your attenuation needs. Amphenol RF attenuators are designed to offer flat attenuation over the designated frequency range and feature a microwave grade resistor that consistently reduces power. Hex flats on the body allow this attenuator to be easily torqued to the mating connector.
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Product
Attenuators
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The 01311 attenuator chip series is designed to achieve precision and tight flatness with an attenuation accuracy of ± 0.2 dB on our 1-10 dB pads and ± 0.3 dB on our 11-20 dB pads. SemiGen tests 100% of all attenuator chips prior to shipment to verify that they meet specifications.
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Product
Fixed Attenuators
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ZTS provides 2 to 1000 Watts fixed attenuators with many types of connectors to choose from, maximum frequency would reach 67 GHz, we also provide custom or calibrated service as per your request.
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Product
Variable Attenuators
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Continuously variable attenuators from Pasternack are available in 50 Ohm impedance and with SMA connectors. SMA continuously variable attenuators have RF db attenuation values that range from 7 dB to 40 dB. The frequency range of our continuously variable attenuators is from 1 GHz to 18 GHz. This variable attenuator product line includes low to high power attenuators which have the power handling up to 5 Watts.Variable attenuators from Pasternack include female genders and can be bidirectional, depending on the power rating. Our continuously variable attenuators are manufactured to precise industry specifications and the bodies are constructed of. Pasternack commonly uses Pi attenuators or Pi pads for its continuously variable attenuator designs.
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Product
Step Up Transformer
MagD
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SCOPE proudly introduces Step-Up Transformer - MagD, specially designed to cater the needs of testing of instrument Transformers. Before new systems are put into service or after any occurrence of fault, the instrument transformers need to be tested for their outputs. It is to be ensured that these instrument transformers are giving proper outputs to the protective relays. MagD is used to plot excitation curves for instrument transformers. Inbuilt voltmeter and ammeter, eliminates the need of external meters for plotting of curves. It can also be used for de-magnetization of transformer cores and also turns-ratio tests can be conducted using MagD.
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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
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
Variable Optical Attenuators
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Nanning Xionghua Photonics Technology
Variable Optical Attenuator by Xionghua Photonics
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Product
Voltage Variable Attenuators
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a High Reliability Low Noise Voltage Controlled Oscillator (VCO) which covers a 10 MHz to 20 MHzfrequency band with a voltage tuning range from 0V to 20V. This design features exceptional phase noise performance of -120dBc/Hz @ 10 kHz offset. Supply Voltage is +15V with a generated output power level of +10 dBm and 2nd harmonic output of-11 dBc typical. The assembly is RoHs compliant and available in a compact 0.5 inch SMT package with an industry standardmounting footprint. The bottom surface is copper clad with 2-5 micro inches of immersion Gold over 150 - 250 micro inchesof Electro less Nickel which makes it resistant to oxidation for ease of soldering. The VCO operates over a temperature rangeof -40°C to +85°C and is designed to meet a variety of MIL-STD-202 test conditions including Humidity, Shock, and Vibration.
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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.





























