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EC&M NEC Consultant Shares with IEC Chesapeake

2014-02-18 17:04:00| Electrical Construction & Maintenance

By Aja Holloway, IEC Chesapeake On Feb. 4, more than 200 career and technical students from all corners of Maryland visited IEC Chesapeakes Laurel Training Facility to hear Mike Holt. read more

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EC&M Contest

2014-02-07 17:41:49| Electrical Construction & Maintenance

test test read more

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EC&M Contest

2014-02-07 17:41:49| Electrical Construction & Maintenance

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The Design Of Ultra Narrow-Band Amplifiers Using Small Signal Varactor Up-Converters For ESM, ECM, ECCM, And ELINT Applications

2014-01-17 13:49:01| rfglobalnet Downloads

A method is presented in this paper for realizing tunable amplifiers with bandwidths of less than 0.5%; without the use of superconductors and cryogenic cooling. This method uses a small signal varactor up-converter to achieve these ultra narrow bandwidths. The equivalent circuit for the up-converter is presented as well as the circuit configuration of the narrow band negative resistance amplifier. The design and experimental results are presented for a 0.5% bandwidth negative resistance amplifier at 800 MHz; using this unique circuit design. These devices and circuits can be used for electronic warfare applications such as surveillance, electronic reconnaissance, jamming and frequency hopping. By Dr. Alfred I. Grayzel, Dr. Ashok (Ash) K. Gorwara, Paul Kuhn, Planar Monolithics Industries, Inc.

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Biological Safety Cabinets utilize DC ECM motor.

2013-12-02 14:30:56| Industrial Newsroom - All News for Today

Utilizing ULPA filter technology, Labculture® and Labculture® Reliant Class II Type A2 Biological Safety Cabinets provide 99.999% efficiency per IEST-RP-CC001.3 USA. External surfaces are powder coated with ISOCIDE™ to eliminate 99.9% of surface bacteria within 24 hr of exposure. To optimize filter life while maintaining performance, DC ECM motor automatically compensates for changes in filter loading. Zero Volt Relay Contact can be used to monitor exhaust fan or alarm or to synchronize with BCM. This story is related to the following:Biological Safety Cabinets

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