By U.S. Marine Corps

Communications and knowledge structures (Cis) help accumulating, processing, and changing info. Cis automate regimen features, liberating commanders and staffs to target the facets of command and keep an eye on that require event, judgment, and instinct. body of workers who set up, function, and retain Cis play a key function within the command and keep an eye on of the Marine airground activity strength (Magtf). it truly is a real understatement to assert that the good fortune of the Magtf within the smooth battlespace depends upon the potent employment of Cis.

Show description

Read Online or Download Antenna Handbook MCRP 3-40.3C PDF

Similar reference books

Download e-book for iPad: Abortion: A Documentary and Reference Guide by Melody Rose

This thought-provoking reference paintings explores the evolution of America's heated abortion debate in a range of over forty fundamental files from the nineteenth century to the current day. The advisor contains not just key legislation and lawsuits that experience made up our minds abortion coverage, but in addition political speeches, clinical essays, theological writings, newspaper ads, journal articles, and renowned books that supply perception into America's altering attitudes in the direction of girls, race, the clinical box, and the position of presidency in its voters' own lives.

Download e-book for iPad: LEED Reference Guide for Green Building Design and by USGBC

The LEED Reference consultant for eco-friendly construction Operations and upkeep, 2009 version, is a user's guide that courses a LEED undertaking from registration to certification of a high-performance latest construction. This consultant is particularly designed to supply the instruments precious for development proprietors, managers and practitioners to maximise the operational potency in their constructions, whereas minimizing environmental affects.

Get African American Quotations PDF

This huge choice of African American quotations is the 1st of its variety to be prepared by means of topic quarter for ease of reference. greater than 2,500 quotations from over 500 people are integrated, taken from issues in heritage starting from early American payment to the current. The resources for those expressions of freedom, wish, survival, and energy contain such outstanding figures as George Washington Carver, Malcolm X, Marcus Garvey, Jesse Jackson, Mary McLeod Bethune, James Baldwin, Oprah Winfrey, and Alice Walker.

Online Searching on DIALOG® : Beilstein Reference Manual by Dr. Stephen R. Heller, George W. A. Milne (auth.) PDF

This handbook is intended to be one of many first steps within the renaissance of the Beilstein instruction manual of natural Chemistry and its computer-readable opposite numbers, the Beilstein Databases of genuine and structural information. the large paintings of the employees of the Beilstein Institute has produced, for over a hundred years, a really precious and precise medical source.

Extra info for Antenna Handbook MCRP 3-40.3C

Example text

Because of this characteristic, other stations operating on the same or nearby frequencies may interfere with the desired signal and make reception difficult or Antenna Handbook ____________________________ 2-11 impossible. However, reception of a desired signal can be improved by using directional antennas. Horizontal half-wave antennas accept radio signals from all directions. , broadside, and the weakest reception is received from the direction of the ends of the antenna). Interfering signals can be eliminated or reduced by changing the antenna installation so that either end of the antenna points directly at the interfering station.

Resonance can be achieved in two ways: physically matching the length of the antenna to the wave and electronically matching the length of the antenna to the wave. RECEPTION The radio waves that leave the transmitting antenna will have an influence on and will be influenced by any electrons in their path. For example, as an HF wave enters the ionosphere, it is reflected or refracted back to earth by the action of free electrons in this region of the atmosphere. When the radio wave encounters the wire or metallic conductors of the receiving antenna, the radio wave’s electric field will cause the electrons in the antenna to oscillate back and forth in step with the wave as it passes.

This reduces ground losses and provides the best possible reflecting surface for the down-going radiated energy from the antenna. At low and medium frequencies, the ground acts as a good conductor. The ground connection must be made in such a way as to introduce the least possible amount of resistance to ground. At higher frequencies, artificial grounds constructed of large metal surfaces are common. Antenna Handbook ____________________________ 2-21 The ground connections take many forms, depending on the type of installation and the loss that can be tolerated.

Download PDF sample

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

by Brian

Download e-book for kindle: Antenna Handbook MCRP 3-40.3C by U.S. Marine Corps
Rated 4.35 of 5 – based on 20 votes