Active Filters
Require power to operate, using active devices and passive components in a frequency-selective network, only passing certain frequencies.
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Product
InfiniiMode Active Differential Probe, 1.5 GHz
N2750A
Oscilloscope Probe
The N2750A InfiniiMode differential probe is a new generation of low-cost differential active probes compatible with Keysight InfiniiVision and Infiniium oscilloscopes’ AutoProbe interface. It comes with new operation modes and convenient measurements of differential, single-ended, and common mode signals with a single probe tip, without reconnecting the probe to change the connection. The N2750A probe’s InfiniiMode provides the following modes of operation.
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Product
Mid-Range Gas Filter Correlation CO Analyzer
Model T300M
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Teledyne Advanced Pollution Instrumentation
The Model T300M CO analyzer measures low to mid ranges of carbon monoxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas according to the Beer-Lambert law. Using a Gas Filter Correlation Wheel, a high-energy IR light source is alternately passed through a CO filled chamber and a chamber with no CO present. The light path then travels through the sample cell, which has a folded path of 2.56 meters.
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Product
Narrow Band Filters (Single Octave)
MINI-POLE® Series
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The MINI-POLE® Series of tunable filters is optimized for size, RF power handling, low distortion, and exceptional selectivity. The product line includes several standard designs in various bands to support a myriad of applications. Approximate performance is summarized in the MINI-POLE Series Selection Guide.
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Product
Thunderbolt 3 Type-C Cable, Active 40 Gbps, 3A, 2m
785607-02
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24-Pin USB-C Male to 24-Pin USB-C Male Thunderbolt™ Cable - The Thunderbolt 3 Male-to-Male Cable provides a USB-C connection for PXI chassis and controllers. This cable supports passive or active 40 Gbps or passive 20 Gbps data transfer speeds. The Thunderbolt 3 Male-to-Male Cable is available in 0.8 m or 2 m lengths. Thunderbolt and the Thunderbolt logo are trademarks of Intel Corporation or its subsidiaries in the US and/or other countries.
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Wide Band Filters (multi-octave)
NANO-ERF® Series
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The NANO-POLE® Extended Range Series of tunable filters was developed to address applications needing an extremely small surface-mount package with low power consumption. Wide tuning range is accomplished with careful design to minimize size and power consumption.
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Product
Filters & Switch Filter Banks
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PMI offers the highest quality filters, switch filter banks, filter assemblies, diplexers, multiplexers for industrial and military applications in the frequency range of DC to 40 GHz. All PMI’s Switch Filter Banks use PMI’s proprietary Solid-state Switch designs, which offer high speed and improved performance. While there are many standard models, PMI can design and build to meet your specifications.
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Product
Solid State Active Synchro Control transformer and Solid State Resolver Control Transformer
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Computer Conversions Corporation
The SCT Series are low cost, miniature, solid state control transformers designed for military and industrial control applications. They will directly replace conventional electromechanical control transformers & thus provide digital control to existing analog servo systems. They simultaneously accept a 3 wire synchro input (0) and a digital angle input (0), and provide an ouput which is the sine of the difference between these two input angles (A sin wt sin (0-0) ("wt" is the synchro excitation frequency).
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Product
Band Pass Filters
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High-Pass (HPF series), Low Pass (LPF series) and Band Pass (BPF series) Filters are available, providing desired skirt selectivity and rejection levels with minimum insertion loss in the pass band. The filters are offered in all standard waveguide bands covering 18 to 400 GHz depending on our possibility to fulfil the customers' requirements. Dimensions of filters depends on required specifications. .
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Product
Active Loop Antenna
AL-130R
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Also known as Magnetic Loop Antenna, the AL-130R is compliant with CISPR 16-1-4. It is ideal for emissions measurements as required by various EMC standards such as FCC 18, CISPR 11, CISPR 13, CISPR 14, CISPR 32 and many more. The built-in, low-noise preamplifier, increases overall measurement sensitivity as well as the overall signal to noise ratio. As per ANSI C63.4-2014, the use of active loop antenna for compliance testing is permitted in a non-sheilded environment ONLY if the saturation indicator is continuously monitored during the course of testing. Com-Power’s Remote Antenna Interface (RAI-100) comes in very handy for this application. It is a compact controller which can be used to enable/ disable RF measurement circuit and monitor saturation and battery low conditions remotely via a fiber optic cable up to 30 mtrs in length.
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Product
Narrow Band Filters (Single Octave)
MINI-SMT® Series
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The new MINI-SMT™ tunable filter advances our popular MINI-POLE® Series by providing Surface Mount (SMT) capability along with the field proven RF power handling, low distortion and exceptional selectivity performance of our MINI-POLE® filters. MINI-SMT™ bandpass options are available from 700 MHz to 3 GHz.
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Product
High-Current, Ultra-Low Noise Filter, 21 V / 500 MA, 10 Ω
N1298A
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The N1298A Series is a collection of low noise filters for the Keysight B2960 Series 6.5-digit low noise source.
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Product
Noise Activated Warning Signs
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Signs within the workplace that warn of high noise levels are common place as they help ensure that employees, visitors and the public are aware and, if required, wearing ear protectors. This type of signage is ideal when noise levels are stable and consistent.
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Product
Active Probe
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This probe is designed to help auto-technicians in troubleshooting electrical circuits. Apart from using the normal multi-tester, this probe can be used in conjunction with it by providing additional functions to assist in diagnosing electrical or components faults or failures in the vehicle.
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Product
16-Channel Anti-Alias Low-Pass Filter Card
AAF-16
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The AAF-16 is a 16-channel anti-alias low-pass filter card series for front-end signal conditioning in PC-based data acquisition systems.
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Dual Channel Variable Filter
4302
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The Model 4302 Dual Filter is a high performance, low priced, general purpose filter for use in the laboratory as well as in multiple channel data acquisition applications.
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Signal Acquisition and Filtering Technology
SNAPTrack®
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Built on a proven design, and with Pathfinder SAF Technology™ at its core, the SnapTRACK® offers RYCOM’s most advanced signal acquisition and filtering technology. The SnapTRACK® cable & pipe locator offers utility locators FrequencyFlex™ allowing users to adapt the system to their specific needs. Multiple active frequencies allow the user to accurately locate with a minimum of interference while maintaining the ability continue locating past faults and around conduit bends. Passive frequencies identify "live" and charged lines by their naturally occurring electromagnetic fields. The SnapTRACK® offers multiple passive frequencies -- 50Hz, 60Hz, Radio Frequency, Cathodic Protection Rectifier & CATV -- allowing line locating without the use of a transmitter.
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Product
Fast Tuned Notch Filter
ES005 & ES006
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Teledyne Defence & Space’s (TDS) range of Fast Tuned Notch Filters (FTNF) have been designed to protect Electronic Support Measures (ESM) receivers from high duty cycle, frequency agile interference produced by on board (or cohort) combat radar systems. ESM sensors often need protection from high power nearby radars, and such signals can reduce receiver dynamic range.
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Product
Harmonic Filter Resistors
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Post Glover designs, builds and tests their harmonic filter resistors in accordance with applicable IEC and IEEE standards to guarantee their performance. With no two installations ever being the same, our experienced engineers develop the proper solution for your particular application and environment. Our low inductance designs are built using all stainless steel elements in corrosion resistant enclosures chosen for your unique specification. Request a quote for your custom harmonic filter resistor.
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Product
Capacitor for AC Filtering
PECA5
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Lifasa - International Capacitors, SA
These capacitors are especially suitable for applications where high levels of AC voltage are required. The design of this series has been optimized for the manufacture of high performance AC filters for compensation equipment with high pollution such as UPS or wind turbines.
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Product
High Impedance Active Probes
12C
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A high speed, high input impedance active probe for measuring the internal node voltage of integrated circuits. The input is 1 megohm shunted by 0.1 pf and the rise/fall times are 0.8 ns. This instrument has full dc capability and can be used with any oscilloscope. The Model 12C was specially designed so that when used in conjunction with a high input impedance oscilloscope, signal attenuation is 10:1 and with a 50 Ohm input, signal attenuation is 20:1.
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Product
Gas Filter Correlation Carbon Monoxide Analyzer
Model T300
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The Model T300 measures low ranges of carbon monoxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas according to the Beer-Lambert law. Using a Gas Filter Correlation Wheel, a high energy IR light source is alternately passed through a CO filled chamber and a chamber with no CO present. The light path then travels through the sample cell, which has a folded path of 14 meters. The energy loss through the sample cell is compared with the span reference signal provided by the filter wheel to produce a signal proportional to concentration, with little effect from interfering gases within the sample. This design produces excellent zero and span stability and high signal to noise ratio, allowing extreme sensitivity. All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/O, and built-in data acquisition capability. All instrument set up, control and access to stored data and diagnostic information, is available through the front panel, or via RS232, Ethernet, or USB com ports, either locally or by remote connection.The Model T300 comes with NumaView™ Software. NumaView™ Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView™ Software.
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Product
Interchangeable Probe Active Transmitters
HD2817T…Series
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The instruments of the HD2817T… series are transmitters, indicators, and ON/OFF regulators with data logging functions, they measure temperature and humidity. The instrument has a large, backlighted, graphical display.
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Product
200 MHz, 3.5 pF, 1 M Active Differential Probe, ±20 V
T3LVD20-200
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200 MHz, 3.5 pF, 1 M Active Differential Probe, ±20 V.
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Product
Active biconical Antennas
BicoLOG X Series
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Only a single broadband test antenna for the complete frequency range from 20MHz up to 3GHz. Optimal for usage with spectrum analysers for EMC measurement. Active Antennas with high gain up to 41dBi.
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Product
Active Voltage Probes
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Engineers must commonly probe high-frequency signals with high signal fidelity. Typical passive probes with high input R and C provide good response at lower frequencies, but inappropriately load the circuit, and distort signals, at higher frequencies. Active voltage probes feature both high input R and low input C to reduce circuit loading across the entire probe/oscilloscope bandwidth. With low circuit loading, and a form factor that allows probing in confined areas, the active voltage probe becomes the everyday probe for all different types of signals and connection points.
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Product
Air Core Harmonic Filter Reactors
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Use of nonlinear loads such as power electronics based equipment and electric furnaces have been on the rise for the last decades. Such loads decrease the power quality of the network that they are connected to. One of the most important parameters for defining the power quality is harmonic distortion.
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Product
Active Splitters
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Macom Technology Solutions Holdings Inc.
MACOM's active splitters available in 2, 3, 4, 5, 6 and 8-way splits, are designed for todays advanced CATV, FTTx, and direct broadcast satellite (DBS) subscriber equipment. Typical applications include high-definition flat screen TVs, set top boxes (STBs), embedded multimedia terminal adapter (eMTAs), cable modems, and PCTV cards. Ranging from 50 MHz to 1100 MHz and available in surface mount PDFN and PQFN plastic packages
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Product
Active Alignment Assembly & Test Platform
Test Platform
Quickly deliver flawless camera & LiDAR modules, MEMS devices, die based sensors, LED and laser-based headlights and other high-end products with a supremely accurate standardized platform.
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Product
High Impedance Active Probes
7A
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An unterminated version, can be used for capacitance and resistance measurements or in low to medium speed signal applications where a 50 ohm termination is not required. A flexible coaxial cable length of 6 feet in length is standard on the Model 7A; however, when used for capacitance measurements, GGB Industries, Inc., recommends using a shorter 3 foot cable. If a shorter length of cable is desired for capacitance measurements, please specify it when ordering (Model 7A-3ft.). Please note that Model 7A uses Model 7 replacement tips.
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Product
Lowpass Filters
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K&L Microwave provides lowpass filters in multiple topologies built to customers' electrical, mechanical, and environmental specifications. The list below contains part numbers meeting existing industry and customer specifications, as well as product families. Use the quote cart to request a quote on a specific design.





























