Programmable Attenuators
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300-Watt AC/DC Power Supply
Model 56RS1
NAI’s 56RS1 is a 300 Watt AC/DC Power Supply that accepts multiple AC inputs plus a +270 VDC input. This COTS unit provides a single full-power output at a baseplate temperature of +85° C.Standard features include remote error sensing; remote digital (TTL) turn on/off; and protection against transients, overvoltage, overcurrent, and short-circuits. Options such as ESS vibration testing and choice of output voltages are available, and additional options and special units can be ordered.
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PCI Resistor Card 2-Channel 1.5 Ohm To 2.04k Ohm
50-293-022
The 50-293 is a Programmable Resistor card with either two channels of 16-bit or four channels of 8-bit resistor chains in a single PCI card. The card is ideal for simulating sensors for control and management systems under test, allowing the user to verify system response in design verification or manufacturing test applications.
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PXI Programmable Power Supply, 0-48VDC
41-743-001
The 41-743 is a fully isolated programmable power supply capable of delivering output voltages to 48V with a voltage setting resolution of less than 1mV. The output is capable of delivering up to 40W to the user load and requires no external power supply – power is drawn from two PXI backplane slots.
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Variable Attenuators
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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Variable Attenuator
FTBx-3500
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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PXI 2.5W Programmable Resistor Module, 1-Channel, 2.5Ω to 201kΩ
40-251-141
The 40-251-141 is a programmable resistor module with 1 channel which can be set between 2.5Ω and 201kΩ with 0.25Ω resolution The 40-251 range provides a simple solution for applications requiring up to 2.5W of power handling per channel. The 40-251 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems.
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PXI/PXIe High Density Precision Resistor Module
42-297A-126
The 40-297A-126 (PXI) and the 42-297A-126 (PXIe) are 4-channel programmable resistors with a range of 1.5 Ω to 26.7 kΩ. They are part of the 40/42-297A series of high density precision resistor modules and provide a simple solution for applications requiring accurate simulation of resistive sensors.
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PXI/PXIe Solid State Attenuator, Hex, 6GHz, 50Ω, SMA
41-182B-006
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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PXI/PXIe High Density Precision Resistor Module, 9-Channel
40-297A-031
The 40-297A-031 (PXI) and the 42-297A-031 (PXIe) are 9-channel programmable resistors with a range of 2 Ω to 13.6 kΩ. They are part of the 40/42-297A series of high density precision resistor modules and provide a simple solution for applications requiring accurate simulation of resistive sensors.
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PCI High Density Pecision Resistor Card
50-298-131
The 50-298-131 is a high density programmable resistor card with 4 channels which can be set between 3Ω and 13.6kΩ with 0.25Ω resolution The 50-298 range provides a simple solution for applications requiring accurate simulation of resistive sensors.
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PCI Resistor Card 2-Channel 2 Ohm To 65.5k Ohm
50-293-033
The 50-293 is a Programmable Resistor card with either two channels of 16-bit or four channels of 8-bit resistor chains in a single PCI card. The card is ideal for simulating sensors for control and management systems under test, allowing the user to verify system response in design verification or manufacturing test applications.
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PXI Attenuator
Keysight offers step attenuator modules that operate across a broad frequency range of DC to50 GHz.
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Fixed Attenuators
The Analog Devices family of wideband, fixed value, 50 Ω matched attenuator products offers relative attenuation levels that range up to 20 dB. Our products are ideal for microstrip, hybrid, and multichip module applications that require extremely flat attenuation and excellent VSWR vs. frequency.
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Digital Attenuator
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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PCI Precision Resistor Card 9-Channel, 1Ω To 122Ω
50-297-112
The 50-297 provides a simple solution for applications requiring accurate simulation of resistive sensors. The 50-297 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems. It is particularly well suited to applications such as the testing of engine controllers where resistive sensors provide information on parameters such as temperature.
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PXI 5W Programmable Resistor Module, 2-Channel, 1.5Ω to 6.97kΩ
40-252-024
The 40-252-024 is a programmable resistor module with 2 channels which can be set between 1.5Ω and 6.97kΩ with 2Ω resolution The 40-252 range provides a simple solution for applications requiring up to 5W of power handling per channel. The 40-252 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems.
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PXI/PXIe High Density Precision Resistor Module
42-297A-140
The 40-297A-140 (PXI) and the 42-297A-140 (PXIe) are 3-channel programmable resistors with a range of 2.5 Ω to 102 kΩ. They are part of the 40/42-297A series of high density precision resistor modules and provide a simple solution for applications requiring accurate simulation of resistive sensors.
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Programmable Step Attenuator DC~50GHz, 0~115dB Att.
The programmable step attenuator achieves step attenuation over a wide frequency band. It features high attenuation accuracy, excellent repeatability, low insertion loss, and long service life. Its primary applications include controlling the amplitude of signals entering systems, regulating output signal power in systems, and adjusting impedance matching between signal sources and loads. It is widely used in various broadband spectrum analyzers, broadband vector network analyzers, broadband synthesized signal sources, noise figure test sets, and diverse microwave automatic test systems.
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150-Watt AC/DC Power Supply; Single Output
56MS1
NAI’s 56MS1 is a 150 Watt AC/DC Power Supply that accepts multiple AC inputs plus a +270 VDC input. This COTS unit provides full-power, single output, at a baseplate temperature of +85° C.
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PXI Programmable Resistor Module 2-Channel 3 Ohm to 131k Ohm - SPST
40-294-134
These PXI Programmable Resistor modules are available with either two channels of 16-bit, two channels of 12-bit or four channels of 8-bit resistor chains in a single 3U PXI module. The module is ideal for simulating sensors for control and management systems under test, allowing the user to verify system response in design verification or manufacturing test applications.
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PCI Precision Resistor Card 3-Channel, 3Ω To 22.3MΩ
50-297-154
The 50-297 provides a simple solution for applications requiring accurate simulation of resistive sensors. The 50-297 is available in a variety of resistance ranges and resolution capabilities that meet the needs of most functional test systems. It is particularly well suited to applications such as the testing of engine controllers where resistive sensors provide information on parameters such as temperature.
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Variable Attenuators
Wuhan Sunma Technology Co., Ltd.
SunmaFiber offer optical variable attenuator is used for continuously variable optical signal attenuation. As the attenuator is used in the laser system for the on-line testing, there 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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PXI Programmable Resistor Module 18x8 Bit, 0 Ohm to 255 Ohm
40-295-121-18/8
The 40-295 is a Programmable Resistor module with up to 18 channels of 8-bit resolution resistor chains in a single 3U PXI module. The flexible architecture allows these modules to also be supplied as 12, 16 or 24-bit resolution versions for applications requiring finer resolution, greater resistance range or higher channel count.
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PXI/PXIe High Density Precision Resistor Module, 4-Channel
40-297A-123
The 40-297A-123 (PXI) and the 42-297A-123 (PXIe) are 4-channel programmable resistors with a range of 1.5 Ω to 3.55 kΩ. They are part of the 40/42-297A series of high density precision resistor modules and provide a simple solution for applications requiring accurate simulation of resistive sensors.
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PXI/PXIe High Density Precision Resistor Module, 9-Channel
40-297A-026
The 40-297A-026 (PXI) and the 42-297A-026 (PXIe) are 9-channel programmable resistors with a range of 1.5 Ω to 26.7 kΩ. They are part of the 40/42-297A series of high density precision resistor modules and provide a simple solution for applications requiring accurate simulation of resistive sensors.
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PXI Resistor Module 24-Channel (no resistors fitted)
40-280-021
The 40-282 is a potential divider with up 24 separate channels. This can be used to emulate potentiometer devices, each channel having a fixed R1 R2 ratio. Additionally, the centre point can be shorted to either of the potentiometer end points.
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PXI/PXIe High Density Precision Resistor Module, 4-Channel, 1.5 Ω to 925 Ω
40-297A-121
The 40-297A-121 (PXI) and the 42-297A-121 (PXIe) are 4-channel programmable resistors with a range of 1.5 Ω to 925 Ω, 0.25 Ω Resolution. They are part of the 40/42-297A series of high density precision resistor modules and provide a simple solution for applications requiring accurate simulation of resistive sensors.
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PXI/PXIe Solid State Attenuator, Triple, 6GHz, 50Ω, SMA
41-182B-003
The 41-182B-003 (PXI) and 43-182B-003 (PXIe) are programmable RF attenuator modules with 3 channels in one slot capable of inserting a signal loss of 0 to 31.75dB in 0.25dB steps. The attenuators use solid state switches for a long service life and fast operation with minimum settling time and no signal bounce.
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POWER ATTENUATORS
TYPE ATF
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.
