By David L Adamy
EW one hundred and one has been a favored column within the "Journal of digital protection" for a couple of years. This compilation of educational articles from JED offers introductory point digital conflict guideline for college students of the self-discipline.
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Extra info for EW 101: A first course in electronic warfare
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The subject antenna is rotated in one plane while receiving signals from a fixed test antenna, and the received power is recorded as a function of the antenna's orientation relative to the test antenna. Boresight: The boresight is the direction the antenna is designed to point. This is usually the direction of maximum gain, and the other angular parameters are typically defined relative to the boresight. Main lobe: The primary or maximum gain beam of the antenna. The shape of this beam is defined in terms of its gain versus angle from boresight.
The factor 32 is a fudge factor that is added to make the answer come out in the desired units from the most convenient input units. It is actually 10 EW 101: A First Course in Electronic Warfare 41T squared, divided by the speed of light squared, multiplied and divided by some unit conversion factors-and the whole thing converted to dB form and rounded to a whole number. The important thing to understand about this fudge factor (and the equation that contains it) is that it is correct only if exactly the correct units are used.
Functionally, any antenna can either transmit or receive signals. However, antennas designed for high-power transmission must be capable of handling large amounts of power. 1. 2 The Antenna Beam One of the most important (and misstated) areas in the whole EW field has to do with the various parameters defining an antenna beam. 1, which is the amplitude pattern (in one plane) of an antenna. 1 Commonly Used Antenna Performance Parameters Term Definition Gain The increase in signal strength (commonly stated in dB) as the signal is processed by the antenna.
