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The following example of a complete input deck models a log-periodic antenna, like those used for VHF television reception: This 16-element log-periodic design is similar to the 12-element one being modeled in the example deck. CM TESTEX5 CM 12 ELEMENT LOG PERIODIC ANTENNA IN FREE SPACE CM 78 SEGMENTS. SIGMA=O/L RECEIVING AND TRANS. PATTERNS.
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Antenna used for transmission of radio signals In telecommunications , transmission (sometimes abbreviated as "TX") is the process of sending or propagating an analog or digital signal via a medium that is wired , wireless , or fiber-optic .
An air gapped network (right) with no connection to a nearby internet-connected network (left) An air gap, air wall, air gapping [1] or disconnected network is a network security measure employed on one or more computers to ensure that a secure computer network is physically isolated from unsecured networks, such as the public Internet or an unsecured local area network. [2]
The Rainbow Series (sometimes known as the Rainbow Books) is a series of computer security standards and guidelines published by the United States government in the 1980s and 1990s. They were originally published by the U.S. Department of Defense Computer Security Center, and then by the National Computer Security Center .
An optical communication system is any form of communications system that uses light as the transmission medium. Equipment consists of a transmitter, which encodes a message into an optical signal, a communication channel, which carries the signal to its destination, and a receiver, which reproduces the message from the received optical signal.
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For example, the Mushiake relationship for the simplest self-complementary planar antenna with two terminals is expressed as: Z = Z 0 /2≒188.4 [Ω], (Mushiake relationship) where Z is the input impedance of the antenna, and Z 0 is the intrinsic impedance of the medium.