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This article provides a summary description of many of the different antenna types used for radio receiving or transmitting systems. Different types of antennas are made with properties especially optimized for particular uses, and the electrical design of antennas serves as a way to group them:
Typically, the bands are color-coded to show different levels of resistance and users need to select an appropriate level. Code colors vary between brands. [2] Also, available are loop bands, as well as tubing without handles and bands, set up with handles [clarification needed] (a common option for many purchasers). Some types allow handles to ...
Moxon antenna for the 20-meter band.The antenna is the faint rectangle of wires held in tension by the bent X-shaped support frame. Moxon antenna for the 2-meter band. The Moxon antenna or Moxon rectangle is a simple and mechanically rugged two-element parasitic array, single-frequency antenna. [1]
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A helical antenna is an antenna consisting of one or more conducting wires wound in the form of a helix.A helical antenna made of one helical wire, the most common type, is called monofilar, while antennas with two or four wires in a helix are called bifilar, or quadrifilar, respectively.
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The spectrum is divided into separate bands, with different names for the electromagnetic waves within each band. From low to high frequency these are: radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. The electromagnetic waves in each of these bands have different characteristics, such as how they are ...
Dr. Deborah Burns watched her son William Hewes, 22, die from sepsis at the hospital in London where she works. Speaking before a hearing ahead of the inquest into Hewes' death, Burns claimed her ...