Variable Attenuators
Provide changeable resistance values.
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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
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
Variable Gain Optical Amplifier Module
VGA4500-FM06
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Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai VGA4500-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 Attenuator Operating Frequency of 1 to 20 GHz
LDA Series
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The LDA series of Lab Brick® RF and Microwave Programmable Digital Attenuators includes 50 Ohm and 75 Ohm bidirectional RF step attenuators with calibrated operation up to 20 GHz. These USB powered and controlled units require no additional DC supply voltage. They are easily programmable for fixed attenuation or swept attenuation ramps directly from the included GUI. Lab Brick Digital Attenuator API DLL, Linux drivers and LabVIEW-compatible drivers are also available for custom programming applications.
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Product
High Resolution USB Programmable Digital Attenuator 200 to 6,000 MHz
LDA-906V Lab Brick®
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The Lab Brick LDA series of Digital Attenuators bring affordability, functionality, reliability and simplicity to the microwave test bench. The LDA products range from 6 MHz to 20 GHz with input level tolerance to 2 Watts and step size as small as 0.1 dB. Lab Bricks use a native USB HID interface to avoid the difficulties inherent in using older serial or IEEE-488 interfaces implemented over USB. As a result, Lab Brick users can get to work faster without having to install kernel level drivers, and Lab Brick devices can be easily used on any system that supports USB HID devices, including low cost embedded computers using Linux or similar operating systems.
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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
HVFO10X +/-10V (10x Attenuation) Universal Tip Accessory
HVFO100-10X-TIP-U
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HVFO10X +/-10V (10x Attenuation) Universal Tip Accessory.
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Product
Programmable HiRes Wideband Digital Attenuator
LDA-133
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The LDA-133 Digital Attenuator is a bidirectional, 50 Ohm step attenuator. It provides fast attenuation changes from 10 to 13000 MHz with a step size of 0.5 dB and 63 dB of control range. All attenuators are easily programmable for fixed attenuation, swept attenuation ramps and fading profiles directly from the included Graphical User Interface (GUI). Alternatively, for users wishing to develop their own interface, Vaunix supplies LabVIEW drivers, Windows API DLL files, Linux drivers, Python examples and much more.
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Product
10-amp AC and DC Variable Power Supply
ACDC-10
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The ETI Model ACDC-10 is a small, lightweight, and portable AC and DC power supply. The unit is intended for resetting circuit breaker charging motors and other general-purpose applications. It will provide DC voltage in three nominal ranges from 0-120V, 240V, and 480V at 1 kVA, as well as AC voltage in three nominal ranges from 0-140V, 280V, and 560V at 1.4 kVA. The ACDC-10 is housed in a rugged plastic enclosure approximately 20” x 11” x 18” and weighs less than 65 lbs
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Product
Digital Attenuators
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Macom Technology Solutions Holdings Inc.
Digital Step Attenuators (DSA)are offered in up to 6 Bit control with lowest step size of 0.5 dB covering DC to 40 GHz. MACOM's DSAs can be controlled with serial and parallel control allowing for best implementation for our customers. These products exhibit low insertion loss and high attenuation accuracy and are offered both GaAs and Silicon (SOI) processes and are offered in both packaged and bare die form factors.
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Product
HVFO10X +/-40V (40x Attenuation) Universal Tip Accessory
HVFO100-40X-TIP-U
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HVFO10X +/-40V (40x Attenuation) Universal Tip Accessory.
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Product
Variable Transformer DC Power Supplies
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Variable DC power supplies are AC to DC power supplies with a variable DC output. The output can be varied with a Variable Transformer (also known as variac). The Variable Transformer can be adjusted manually or with a motorized control. The AC input power can be single phase or three phases. With single phase AC input, the DC output ripple is very high (50%). With three phase AC input, the DC output ripple is low (5%). This would be a key benefit for selecting three phase AC input instead of single phase.
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Product
Attenuators
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The National RF line of attenuators are compact, affordable attenuators which are ideal for insertion between a direction finding antenna and a receiver/transceiver, to aid in the DF process. In addition, they may be used in the laboratory for a low-power, in-line attenuation purposes. The affordable price is achieved by utilizing standard 5% tolerance resistors and commercial hardware. For laboratory purposes, an attenuation versus frequency curve (to 500mMHz) is provided.
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Product
Variable Optical Attenuator - PXI
VOA 1000 / 1100 / 1300 Series
Attenuator
The VOA 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 fiber types and various wavelengths to suit a wide range of applications.With 1 or 2 channels in a single PXIe slot, it provides high channel density solution for easy integration in the versatile PXI platform.
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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
6/12 Volt Heavy-Duty Variable Carbon Pile Load Tester
6036B
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• High-volume testing and fleet use• Tests 6/12 Volt batteries• 1000 Amp load; tests batteries up to 2000 cold cranking amps• Cools with high RPM fan for continuous battery testing• High resolution carbon pile assembly for smoother operation and longer life• Optional Model 6038C for added mobility with convenient heavy-duty cart with wheels• Made in USA of US and Global Components
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Product
Attenuator Interconnect Kit, 2.92 mm
11716D
Interconnect Adapter
The 11716D attenuator interconnection kit provides the necessary parts to connect 84904L and 84906L programmable step attenuators in series.
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Product
Voltage Controlled Linearized Attenuators To 16 GHz
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Pulsar's voltage controlled, PIN diode linearized attenuators are available from 0.25-16 GHz with attenuation ranges of 32 and 64 dB. Each model includes an integrated linearizer, and a driver that controls the attenuation level. This design results in transient free switching between attenuation levels as opposed to the spurious outputs that result when an attenuation value is switched either on or off by a direct digitally controlled attenuator. Transfer function is 8 dB / Volt.
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Product
Power/Voltage Rail Probe. 4 GHz Bandwidth, 1.2x Attenuation, +/-30V Offset, +/-800mV
RP4030
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The Teledyne LeCroy RP4030 Power Rail Probe meets the specific requirements of those who need to acquire a low-voltage DC signal as part of a:-Comprehensive power integrity, digital power management IC (PMIC), voltage regulator module (VMR), point-of-load (POL) switching regulator, or low-dropout regulator testing- Complete embedded power management system that includes PMICs, VRMs, POLs, and LDOsThe RP4030 will faithfully acquire a low-impedance, low-voltage DC power/voltage rail signal without unduly loading the device under test (DUT), while providing high offset to allow DC power/voltage rail signal display on an oscilloscope with high gain.
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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
Variable Reluctance Pressure Sensor Capable of Range Changes
DP15
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An easy-to-replace pressure-sensing diaphragm maximizes the system's functionality by making pressure measurements from 2.22" H2O to 3200 psi in one compact unit. Rugged and reliable, the DP15 pressure sensor provides superior accuracy for measuring low-pressure liquids and gasses, while it withstands the abuse of field and laboratory testing. The ability to change full scale ranges make the DP15 a very cost effective solution for applications that need different pressure ranges or university labs.
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Product
HVFO10X +/-1V (1x Attenuation) Universal Tip Accessory
HVFO100-1X-TIP-U
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HVFO10X +/-1V (1x Attenuation) Universal Tip Accessory.
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Product
Manual Attenuator (Waveguide)
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RF Lambda’s manual waveguide attenuators are used to control signal levels using a manual control knob. These are commonly used in test setups or systems where an operator is present and there is a need to change signal levels manually.
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Product
Attenuator Interconnect Kit, 2.4 mm
11716F
Interconnect Adapter
The 11716F attenuator interconnection kit provides the necessary parts to connect 84904/8M and 84904/6L programmable step attenuators in series.
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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
SCR CONTROLLED VARIABLE DC POWER SUPPLY
P5085C
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Shown below is an AC to DC power supply with 4/20 ma interface. Input is 240 VAC, 1 PH, 60 Hz. Output is 0 to 10.5 DC, 130 Amps. This power supply can be interfaced to a PLC system. These units are customized units, built to order.





























