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
Antenna, Active Loop
EM-6876 | 9 KHz – 30 MHz
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The Electro-Metrics EM-6876 Active Loop Antenna is used with EMI Receivers and Spectrum Analyzers with 50 ohm input and covers the frequency range of 9 kHz to 30 MHz.
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Product
Digital Noise Filter
DSP-599zx
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The DSP-599zx, with highly aclaimed digital noise filters, is part of the latest generation Timewave DSP filters. Incorporating the newest high speed CPU, the extra power gives the user unparalleled features and field upgradeability for the future. The new LCD display, pushbuttons, and Visible Memory let you see the exact settings of the filter. The optical encoders give the operator continuous tuning of the filters.
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Product
Active FET Probe Kit 1.2 GHz, 10x, ±40 V
CT4121
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The CT4121 is a compact FET probe with very high input resistance and low input capacitance. With a 1.2 GHz bandwidth, this probe is ideal for timing analysis or troubleshooting high speed logic circuits, for design verification of disk drives, as well as for wireless and data communication design.
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Product
Active Switching Power Supply Using Mosfet, 125 KW, P/N 5940C2
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- Active Switching Power Supply Using MOSFET, 125 KW, P/N 5940C2- Input: 480 VAC, 150 Amps, 3 PH, 60 Hz- Output: 0 to 50 VDC, 2500 Amps max- Ten modules in parallel, each module is rated for 0 to 50 VDC, 300 Amps- PLC Control provides Positive Polarity, Negative Polarity and Shuts OFF- Start / Stop capability and EPO- Output voltage and current are displayed on the voltmeter and ammeter- PLC supplied by the customer. We provide a PLC interface only- Indoor enclosure dimensions: 65″W x 50″H x 36″D or (TBD)- Estimated weight: 2000 lbs. or (TBD)
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Product
200 MHz, 3.5 pF, 1 MOhm Active Differential probe
ZD200
Differential Probe
With the ProBus interface, the ZD200 becomes an integral part of the oscilloscope. The probe sensitivity and offset are automatically optimized based on the oscilloscope gain settings, so control is transparent to the user. When used with a LeCroy digital oscilloscope, no external power supply is required.
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Product
2- to 8-Channel Anti-Alias Low-Pass Filter and Instrumentation Amplifier Card
AAF-3PCI
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The AAF-3PCI is a 2- to 8-channel anti-alias low-pass filter and instrumentation amplifier PCI bus plug-in board for front-end signal conditioning in PC-based data acquisition systems.
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Product
The Activated Sludge Plant Controller
ASP-CON
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Multi-parameter Probe Optimizes Activated Sludge Plant performance
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Product
Wide Band Filters (multi-octave)
MINI-ERF® Series
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The MINI-POLE® Extended Range Series of tunable filters was developed to address applications needing a small, surface mount package with wide tunability. This tunability is accomplished by the use of multiple internal tunable filters along with high performance PIN diode RF band select switches all contained in one housing. The tunable filters are designed to minimize size and power consumption while maintaining high RF power handling and linearity characteristics. Parallel or serial digital interface can be selected by a mode pin for ease of integration into your design.
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Product
Active Network Assessment and Monitoring Platform
Hawkeye
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Keysight Network Applications and Security
Network performance and user experience are critical aspects of your business. It is vital to understand customers’ perception of your website, application, and network services. NOT knowing impacts your revenue stream. Ixia’s Hawkeye continually measures network performance and service status. If there is an issue, Hawkeye helps you identify it, quantify it, and ultimately resolve it – before your customers experience it.
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Product
Inclined Manometer Air Filter Gages
250-AF
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Dwyer Durablock Series 250-AF Gages are precision machined 1" thick solid acrylic plastic, virtually unbreakable and free of distortion. The fluid bore is precision drilled to .0002" to assure life long accuracy.
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Product
Gas Filter Correlation CO2 Analyzer
Model N360
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Teledyne Advanced Pollution Instrumentation
The Model N360 measures carbon dioxide (CO2) by comparing infrared energy absorbed by a sample to that absorbed by a reference according to the Beer-Lambert law.The N360 uses Gas Filter Correlation (GFC) to overcome the interfering effects of various other gases (such as water vapor) that also absorb IR. The analyzer passes the IR beam through a spinning wheel made up of two separate chambers: one containing a high concentration of CO2 known as the reference, and the other containing a neutral gas known as the measure. The concentration of CO2 in the sample chamber is computed by taking the ratio of the instantaneous measure and reference values and then compensating the ratio for sample temperature and pressure. A nitrogen purge system is provided for the GFC wheel assembly to eliminate the effects of ambient CO2, if necessary.
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Product
Air Filter Element Filtration Performance Tester
DRK9007AG
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Shandong Drick Instruments Co., Ltd.
It is used to test the dynamic adsorption performance of automobile air-conditioning filters that can reduce the concentration of harmful gases and odors from the external environment or internal circulation.
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Product
High Impedance Active Probes
7
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Designed as a companion probe to Models 12C and 18C for driving integrated circuit lines so the Model 12C and 18C can be used to measure the response of adjacent nodes. The Model 7 consists of a flexible 6 foot, 50 ohm coaxial cable accurately terminated to 50 ohms in order to avoid undesirable reflections. A special miniature connector receives replacement coaxial probe tips that provide a shielded environment to within 3 mm of the fine tungsten probe point, thus minimizing capacitive coupling to other parts of the circuit. The replaceable coaxial probe tips are offered in various point sizes and can also be bent to any shape in order to accommodate a variety of probing geometries.
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Product
Lowpass Filters
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Frequency range of this lowpass filter is DC to 100 MHz and the passband is 100 MHz. PE8719 lowpass filter is one of over 40,000 RF, microwave and millimeter wave components supplied by Pasternack. Our 5 section low pass filter can be bought and shipped worldwide the same-day as with our other in-stock RF parts.
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Product
2.5 GHz, 0.9 pF, 1 MOhm Active Voltage Probe
ZS2500
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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. The ZS Series features both high input R (1 MΩ) and low input C (0.9 pF) to reduce circuit Loading across the entire probe/oscilloscope bandwidth. The ZS2500 is ideal for 2.5 GHz and lower oscilloscopes.
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Product
Wide Band Filters (multi-octave)
ERF-5W™ Series (Single & Dual)
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The new ERF-5W™ filter takes Pole/Zero’s MINI-ERF® technology to a higher level of RF power handling, with 5W (average) in-band power handling, and covering the entire military tactical radio tuning range of 30-520 MHz in one integrated package. This tunability is accomplished by the use of three poles of selectivity, multiple internal tunable filters along with high performance PIN diode RF band select switches. The tunable filters are designed to minimize size and power consumption, while maintaining high RF power handling and linearity characteristics. Serial control is accomplished via a standard Serial Peripheral Interface (SPI)-based bus.
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Product
1 GHz, 1.0 pF Active Differential probe
ZD1000
Differential Probe
With the ProBus interface, the ZD500, 1000, and 1500 becomes an integral part of the oscilloscope. All probe gain and offset controls are transparent to the user, making it easier to probe the circuit without concern for which gain setting to choose. When used with a LeCroy digital oscilloscope, no external power supply is required.
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Product
High-Power Tunable Filter
CB503
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The need for tunable filter technology originates from the fact that high power communication systems and IED Jammer transmitters severely limit the use of tactical radio communication systems on the battlefield.This clash within the radio’s spectrum during tactical missions is often de-conflicted using fixed high Q, high power RF bandpass and bandstop filters installed prior to mission. This can limit operational effectiveness due to the potentially large number of fixed filters required within the allocated radio communication channels, which need be transported, stored in the field, and fitted by trained personnel. Many of these fixed filters centred within the octave wide tuning range could be replaced by a single high-Q tunable filter.
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Product
LV Iron Core Harmonic Filters
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Nonlinear loads such as power electronics based equipment and electric furnaces are sources of harmonic currents leading to harmonic distortion, which is one of the most important parameters for defining the power quality. Most of the commercial loads such as personal computers, photocopy machines, power supplies, and compact fluorescent lamps; and industrial loads such as AC and DC motor drives inject harmonic currents into the network that they are connected to.
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Product
Active Peak Reading Wattmeter
HF/6
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Active peak reading wattmeter with simultaneously variable hold time on both the forward and reflected meter movements. This variable delay can be adjusted for quick action for high speed CW, or for longer periods more appropriate for the display of SSB and AM voice peaks. The peak detectors sport a new fast attack design capable of capturing quick pulses such as a single dit. Beautiful industrial design with tri color meter scale and brilliant LED illumination make the DWM series wattmeter a beautiful addition to any station.
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Product
Filters and Compiners
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Combine four bands to a common line Multiple broadband configurations, including AWS High power handling with low IM and insertion loss AISG 2.0 compliant
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Product
Mesh Filters From 0.9 To 15 THz
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Insight Product Company offers Mesh Filters from 0.9 to 15 THz
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Product
200 MHz, 3.5 pF, 1 M Active Differential Probe, ±20 V
T3LVD20-200
Differential Probe
200 MHz, 3.5 pF, 1 M Active Differential Probe, ±20 V.
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Product
Differential Active Probe, 1.7 GHz
DP0013A
Signal Probe
The Keysight DP0013A is the 1.7 GHz model of the DP001xA Series differential active probes. These provide the superior general-purpose differential signal measurements required for many of today’s high-speed power-related measurements such as motor drives, automotive differential bus measurements, and high-speed digital system designs.
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Product
RF Filters - Notch
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A specialized band-reject filter that blocks or significantly weakens a very narrow range of unwanted frequencies (the "notch") while letting all other desired frequencies pass through relatively unchanged.
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Product
Highpass Filters
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K&L Microwave provides highpass 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.
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Product
SA1000X, 1 GHz, ±8 V, 10X Attenuation, Single-Ended Active Oscilloscope Probe
784255-01
Oscilloscope Probe
1 GHz, ±8 V, 10X Attenuation, Single-Ended Active Oscilloscope Probe - The SA1000X is single-ended, active voltage probe that is used for many different high-speed measurement applications. The probe is powered by an included auxiliary power supply that is internationally compatible and certified. You can use it with oscilloscopes that provide 50 Ω input impedance.
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Product
8-Channel Amplifier and Low-Pass Filter Module
SCS-814
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The SCS-814 and SCS-815 amplifier/filter module provides eight 8-pole low-pass filters that can be individually configured for a cutoff-frequency from 0.5Hz to 70kHz(SCS-814) and 0.5Hz to 60kHz(SCS-815). Each of the SCS-814/SCS-815's eight channels features an instrumentation amplifier with software-selectable gains of 1 to 1000 in 1-2-5 steps.
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Product
Mixed-Signal Active Load Pull System
MT1000 And MT2000 Series
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The MT1000 and MT2000 mixed-signal active load pull systems are the best commercially proven solutions capable of performing load pull at high speeds of up to 1000 impedance/power states per minute with no limitation on Smith Chart coverage, under the following conditions:Single-tone CW and pulsed-CW RF signalDC and pulsed-DC biasTime-domain NVNA voltage and current waveforms and load linesFrequencies between 1 MHz and 40 GH
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Product
NI-5191, 800 MHz, ±30 V, 10X Attenuation, Differential Active Oscilloscope Probe
781785-01
Oscilloscope
The NI-5191 is a differential, active voltage probe that offers 800 MHz of input bandwidth with a 10:1 attenuation ratio. You can use it with oscilloscopes that provide 50 Ω input impedance. You can power the probe using a Type-N barrel power connector from a USB port or using a 9 V alkaline battery.





























