[DOC] [TLE] Ionosphere - Wikipedia [PAR] The ionosphere is a region of Earth's upper atmosphere, from about 60 km (37 mi
) to 1,000 km ... The ionosphere is a shell of electrons and electrically charged 
atoms and .... Double-hop reception over 3,500 km (2,200 mi) is possible. ... high 
frequency (HF, or shortwave) radio communications over long distances. [DOC] [TLE] Skywave - Wikipedia [PAR] In radio communication, skywave or skip refers to the propagation of radio waves 
reflected or refracted back toward Earth from the ionosphere, an electrically 
charged layer of the upper atmosphere. ... Early long-distance services used 
surface wave propagation at very low frequencies, which are attenuated along 
the path. [DOC] [TLE] Flashcards - Ex. Module 10 Ch. 2&4 - FreezingBlue.com [PAR] Feb 13, 2012 ... The induction field is made up of which of the following fields? H and E ... Radio 
communications can be diffracted to exceptionally long distances through the use 
of (a) what ... Electrically charged particles that affect ... of the following 
atmospheric layers? ... possible because of the advantages of which of... [DOC] [TLE] Chapter Two: Atmosphere [PAR] The atmosphere of the earth may be divided into several distinct layers, as the 
following ... The sun also emits electrically charged particles which reach the 
earth in the ... waves, thereby making long  distance radio communication 
possible. [DOC] [TLE] The effect of the earth's atmosphere on radio waves [PAR] It contains four cloud-like layers of electrically charged ions, which enable radio 
... region of the atmosphere for long distance point-to-point communications. [DOC] [TLE] The Layers of the Atmosphere.pptx [PAR] pause after a layer prefix means that it is the boundary layer ... atmosphere; 
Electrically charged zone; Makes radio communication possible short and long ... 
3 layers DEF; make long distance radio communication possible by reflecting the
... [DOC] [TLE] ionosphere and magnetosphere | atmospheric science | Britannica ... [PAR] Regions of Earth's atmosphere in which the number of electrically charged ... This 
article describes the layers of the ionosphere and the mechanisms by which 
these ... by the need to define the factors influencing long-range radio 
communication. .... light that makes it possible to distinguish objects at Earth's 
surface on dark,... [DOC] [TLE] The Importance of Ionosphere in Radio Communication [PAR] ... after hitting this gas and plasma layer that is composed of charged particles. 
Thus, radio and radiotelephone communication is made possible for the benefit 
... Scientists have divided the atmosphere into seven layers in order to reveal the 
... are called sporadic E layers, are used by radio amateurs for long distance 
VHF... [DOC] [TLE] Electromagnetic Radiation and Radio Waves - Electropaedia [PAR] Electromagnetic Radiation, Radio Waves, Energy, Photons and Radio 
Communications. ... Despite all the communications benefits "electromagnetic 
radiation" makes possible, ... Hundreds of long wave, medium wave. short wave 
and UHF radio ..... on ionisation of the upper layers of the earth's atmosphere by 
cosmic rays. [DOC] [TLE] wave propagation - GlobalSecurity.org [PAR] have a profound effect on the propagation of radio waves, as we will ... 
atmosphere for long distance, point-to-point communi- cations. ... layers of 
electrically-charged gas atoms called ions, which enable ... ground act as a huge 
waveguide, making communica- tion possible ... Long-distance communication is 
possible at. [DOC] [TLE] Atmosphere | Troposphere | Stratosphere | Mesosphere ... [PAR] The ionosphere and the exosphere together make up the upper atmosphere (or 
thermosphere). The magnetosphere is the region above the Earth's surface in 
which charged particles are ... The lowest layer of the atmosphere is called the 
troposphere. .... off the ionosphere allowing radio communication over long 
distances. [DOC] [TLE] PY4SM / PY2DD - Propagao - Propagation - Solar - ANTENA - DX ... [PAR] X - Ray: Indicates possible "blackouts" in the shortwave bands. ... Conditions of 
radio communications HF and VHF bands : Poor (bad), Fair (average), Good (
good). .... An electric charge which oscillates in a conductor creates an electric 
field and .... layer

Question: This electrically charged layer of the atmosphere makes long-distance radio communication possible
Answer: the ionosphere