Get Antenna Handbook MCRP 3-40.3C PDF

By U.S. Marine Corps

Communications and data platforms (Cis) aid amassing, processing, and changing info. Cis automate regimen services, liberating commanders and staffs to target the points of command and keep watch over that require event, judgment, and instinct. body of workers who set up, function, and keep Cis play a key position within the command and regulate of the Marine airground job strength (Magtf). it really is a sarcasm to assert that the luck of the Magtf within the glossy battlespace will depend on the potent employment of Cis.

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2-5). Circular polarization occurs when equal magnitudes of vertically and horizontally polarized waves are combined with a phase difference of 90°. Rotation in one direction or the other depends on the phase relationship. Antenna Handbook ______________________________ 2-9 Advantages of Vertical Polarization Simple vertical half-wave and quarter-wave antennas provide omnidirectional communications. This is desirable in communicating with a moving vehicle. The disadvantage is that it radiates equally to the enemy and friendly forces.

The reduced velocity of the wave on the antenna and a capacitive effect (end effect) make the antenna seem longer electrically than physically. , insulators or clamps) used to support the antenna. 95 for frequencies between 3 and 50 MHz. The figures given are for a half-wave antenna. 95 = 468 Frequency in MHz Frequency in MHz The length of a long-wire antenna (one wavelength or longer) for harmonic operation is calculated by using the following formula, where N = number of half-wavelengths in the total length of the antenna.

Some of these substances, listed in order of preference, are sodium chloride (common salt), calcium chloride, copper sulfate (blue vitriol), magnesium sulfate (Epsom salt), and potassium nitrate (saltpeter). The amount required depends on the type of soil and its moisture content. WARNING WHEN THESE SUBSTANCES ARE USED, IT IS IMPORTANT THAT THEY DO NOT GET INTO NEARBY DRINKING WATER SUPPLIES. For simple installations in the field, a single ground rod can be fabricated from pipe or conduit. It is important that a low resistance connection be made between the ground wire and the ground rod.

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Antenna Handbook MCRP 3-40.3C by U.S. Marine Corps

by James

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