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Communication Device Matrix

Glossary

A C D F H I L M N R S T V

AC: Alternating Current
Ampere Hour: The quantity of electricity measured in ampere-hours (Ah) that can be delivered by a cell/battery under specified conditions.
Amplifier: A device, especially one using transistors or electron tubes, that produces amplification of an electrical signal.
Charger: A device that charges, such as an instrument that charges or replenishes storage batteries.
DC: Direct Current
Frequency: The number of repetitions per unit time of a complete waveform, as of an electric current.
Harmonics: Periodic motion whose frequency is a whole-number multiple of some fundamental frequency.
Humidity: The amount of water vapor in the air, expressed as a percentage of the maximum amount that the air could hold at the given temperature; the ratio of the actual water vapor pressure to the saturation vapor pressure.
Immersion: The condition of being placed underwater for a length of time.
LED: Light-Emitting Diode. A semiconductor diode that emits light when conducting current, and is used in electronic equipment, especially for displaying readings on digital watches, calculators, etc.
Modulation: The variation of a property of an electromagnetic wave or signal, such as its amplitude, frequency, or phase.
NATO: North Atlantic Treaty Organization
NSN: Government National Stock Number. Assigned to cells and batteries purchased by the Department of Defense and other military/government agencies. Numbers for batteries are in the following format: XXXX-XX-XXX-XXXX
Repeater: A device capable of receiving one-way or two-communications signals and delivering corresponding signals that are either amplified, reshaped, or both.
SATCOM: Satellite Communications
Transceiver: A transmitter and receiver housed together in a single unit, and having some circuits in common. Often for portable or mobile use.
Voltage: The unit of measurement of electric potential. Voltage is the difference in electrical energy between two points.

McDowell Research - Designs and manufactures communications power solutions for Air, Land and Sea operations. Power supplies for military transceivers and battery chargers from worldwide AC or DC sources.