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100–200 MHz Thirty-two crossed-dipole antennas measuring 100–200 MHz Solar monitor, two 1.8 m dishes Dominion Radio Astrophysical Observatory, Kaleden, British Columbia, Canada The first dish here was originally a backup for the Algonquin site, but later the ARO instrument was moved to DRAO and this antenna became its backup.
The FCC placed rules on public safety for the auction. 20 MHz of the valuable 700 MHz spectrum were set aside for the creation of a public/private partnership that will eventually roll out to a new nationwide broadband network tailored to the requirements of public safety. The FCC offered the commercial licensee extra spectrum adjacent to the ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 30 January 2025. Classified advertisements website Craigslist Inc. Logo used since 1995 Screenshot of the main page on January 26, 2008 Type of business Private Type of site Classifieds, forums Available in English, French, German, Dutch, Spanish, Italian, Portuguese Founded 1995 ; 30 years ago (1995 ...
The discone antenna has a useful frequency range of at least 10 to 1. [2] [3] When employed as a transmitting antenna, a properly constructed discone is just as efficient as an antenna designed for a more limited frequency range. The extra bandwidth comes from the controlled taper and large termination radius of the cone.
The 800 MHz frequency band is a portion of the electromagnetic spectrum, or frequency band, that encompasses 790–862 MHz.. Being a part of the spectrum known as "UHF Bands IV and V" (i.e. 470 MHz to 862 MHz) it was allocated by the ITU to Broadcasting as the primary user in Region 1 and was used for analogue television broadcasting before changing to digital terrestrial television in many ...
Base price Everything Everywhere Ltd: 2 x 5 MHz of 800 MHz and 2 x 35 MHz of 2.6 GHz: £588,876,000 Hutchison 3G UK Ltd: 2 x 5 MHz of 800 MHz: £225,000,000 Niche Spectrum Ventures Ltd (a subsidiary of BT Group plc) 2 x 15 MHz of 2.6 GHz and 1 x 25 MHz of 2.6 GHz (unpaired) £186,476,000 Telefonica UK Ltd: 2 x 10 MHz of 800 MHz (coverage ...
An antenna array (or array antenna) is a set of multiple connected antennas which work together as a single antenna, to transmit or receive radio waves. [ 1 ] : p.149 [ 2 ] The individual antennas (called elements ) are usually connected to a single receiver or transmitter by feedlines that feed the power to the elements in a specific phase ...
The category of simple antennas consists of dipoles, monopoles, and loop antennas. Nearly all can be made with a single segment of wire (ignoring the break made in the wire for the feedline connection). [citation needed] Dipoles and monopoles called linear antennas (or straight wire antennas) since their radiating parts lie along a single ...