extremely high frequency


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extremely high frequency

[ek′strēm·lē ′hī ′frē·kwən·sē]
(communications)
The frequency band from 30,000 to 300,000 megahertz in the radio spectrum. Abbreviated EHF.
References in periodicals archive ?
This report focuses on the global Extremely High Frequency (EHF) Technology status, future forecast, growth opportunity, key market and key players.
PdM EHFSS--Product Management Extremely High Frequency Satellite Systems
Decontrolling the use of extremely high frequency waves applicable to information and communications equipment is expected to produce hundreds of billions of yen in economic effects.
(Hertz is the official unit of frequency-the number of waves or "cycles" per second.) This electromagnetic radiation is classified as "extremely low frequency," compared to conventional radio and TV transmissions classified as very high frequency" (from half-a-million to a billion hertz) and such things as x-rays, microwaves, UV light, etc., that are in the "extremely high frequency" range of multi-billion hertz.
The fourth Lockheed Martin built Advanced Extremely High Frequency (AEHF) protected communications satellite is one step closer to space.
The largest part previously qualified was a toaster-size electronicsenclosure for the Advanced Extremely High Frequency (AEHF) satellite program.
The ATIP program is providing significant improvements to the Advanced Extremely High Frequency (AEHF) system's performance through dynamic bandwidth management, support for higher XDR data rates, and increased throughput.
The legislative body cut $191 million from the Air Force's Advanced Extremely High Frequency and Space Based Infrared Satellite programs, both of which are part of the service's space modernization initiative (SMI).
Miller as program manager for the Advanced Extremely High Frequency (AEHF) Program on June 23.
The new communications satellites will be the fifth and sixth that are part of the Air Force's Advanced Extremely High Frequency satellite program.
Raytheon, based in Waltham, said yesterday that primary work on the Navy Extremely High Frequency Satellite Program will take place at its facilities in Virginia and California.

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