This section provides an overview for frequency discriminators as well as their applications and principles. Also, please take a look at the list of 6 frequency discriminator manufacturers and their company rankings. Here are the top-ranked frequency discriminator companies as of November, 2024: 1.Spectrum Control, 2.Wide Band Systems, Inc, 3.Akon Inc..
Table of Contents
A frequency discriminator is a circuit and device that cuts the noise portion of an electrical signal.
This device can also convert frequency variations into corresponding amplitude changes, which is a fundamental principle in FM radio broadcasting.
When plotted with input frequency on the horizontal axis and output voltage on the vertical axis, the characteristic curve of a frequency discriminator resembles an 'S' shape.
Each frequency discriminator value can be set from 0V to 10V in 0.01V increments. It can also be turned off if necessary.
A frequency discriminator is used to exclude noise from the actual measurement result, such as in detection systems for abnormalities in manufacturing and detection systems for samples with minute changes in research and development.
For example, in manufacturing, it is used in systems to detect standard arc welding in welding spatter. In biochemical research, flow cytometers use frequency discriminators to evaluate cells and bacteria, avoiding the output of unwanted cell fragment information.
The discriminator can be set to any voltage pulse. When the voltage of the set voltage pulse exceeds the exclusion threshold, the voltage pulse is captured by an analog-to-digital converter and converted into a numerical value. Typically, there are eight different voltage settings. If none of the set values exceed the exclusion criteria, it is judged as noise, and no data is captured.
When used in a flow cytometer, cells other than those to be evaluated may be present. To avoid detecting such cells, it is necessary to set voltage pulses specific to the substance to be measured.
In FM demodulation, the discriminator plays a crucial role by converting frequency variations of the radio wave into amplitude changes, which are then processed to retrieve the original audio signal.
*Including some distributors, etc.
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Crane Co. is a diversified manufacturer of engineered industrial products that was established in 1855 and is headquartered in Chicago, Illinois, USA. The company produces a wide range of products, including sensing components and systems, landing systems, fluid management, electrical power solutions and microwave solutions. Its products, such as Crane Fluid Systems, Crane Control Systems, and Crane Valves, are used by a number of industries, as diverse as oil and gas, aerospace, and power generation industries. The company provides aftermarket services, including AOG (aircraft on ground), Repair Capabilities, RFQ, component maintenance, and modernizations and, upgrades.
Spectrum Control serves several markets including the wireless communication, military communication, aerospace, and high temperature industrial markets. Among the individual components Spectrum Control manufactures and develops are EMI filters; subsystems for signal conditioning and RF distribution; components including power dividers, limiters, filters, amplifiers, diode drivers, and rotary joints; as well secure communications solutions and rugged devices.
Wide Band Systems, Inc., founded in 1992, is an American manufacturer based in Mount Arlington, New Jersey, developing components and systems for tactical signal identification and analysis. The company develops electronic intelligence systems for signal collections, electronic support measures for shipboard deployments, and radar warning receivers for tactical aircraft. The company also produces related components with its featured ones, including digital frequency discriminators, instantaneous frequency measurement receivers, fast-switching synthesizers, and superheterodyne modules.
Narda-MITEQ, founded in 1953 as Nassau Research & Development Associates (Narda) and currently a subsidiary of J.F. Lehman & Company, is an American manufacturer headquartered in Hauppauge, New York, specializing in radio frequency (RF) and microwave products. Catering to both commercial and military applications, the company offers both active and passive components, including microwave and RF products and sub-systems, as well as adapters, power dividers, and waveguide products. The company also offers products for satellite communication (SATCOM) and hardware for space-flight missions. Moreover, the company supplies integrated microwave assembly (IMA) products and subsystems, as well as customized components, assemblies, and systems.
Akon Inc., founded in 1980 and based in San Jose, California, is an American manufacturer and supplier of microwave products for airborne, ground, space, and shipboard applications. The company's portfolio includes integrated microwave subsystems, including digital frequency discriminators, electronic control module transceivers, receiver subsystems, and tuners. The company also provides integrated microwave assemblies, such as fast-stepping filter and switch filter banks, local oscillator assemblies, radio frequency sources, and switch matrices. These products are employed in electronic warfare programs and supplied to defense contractors like Lockheed Martin Corporation, Northrop Grumman Corporation, and the Indian Air Force.
Quantic PMI, founded in 1989 as Planar Monolithic Industries and now a subsidiary of Quantic Electronics, is an American supplier of radio frequency microwave components, modules, and subsystems, with offices in Frederick, Maryland, and El Dorado Hills, California. The company offers over 4,000 products, with its featured ones including digitally tuned phase shifters, medium power low noise amplifiers, and radio frequency limiters. It serves various industries in the communication, commercial, consumer, and military sectors, with notable clientele like Bae System PLC, Boeing Co, and MIT Lincoln Laboratory.
Ranking as of November 2024
Derivation MethodRank | Company | Click Share |
---|---|---|
1 | Wide Band Systems, Inc |
33.3%
|
2 | Spectrum Control |
33.3%
|
3 | Akon Inc. |
16.7%
|
4 | Quantic PMI |
8.3%
|
5 | L3 Narda-MITEQ |
8.3%
|
Derivation Method
The ranking is calculated based on the click share within the frequency discriminator page as of November 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
Country | Number of Companies | Share (%) |
---|---|---|
United States of America | 5 | 100.0% |