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Length: 2:47 -
Rating: 4.714286 (28 ratings) -
View: 19563 -
Author: mosesofmason3
April 30, 2008: Today, NASA-funded researchers released to the general public a new "4D" live model of Earth's ionosphere. Without leaving home, anyone can f...
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Length: 13:24 -
Rating: 5.0 (106 ratings) -
View: 14245 -
Author: N7TFP
Tyler, N7TFP, explains how radio waves travel around the world via radio "skip" or sky-wave propagation. Part 1 of a 2-part series. Part 2 to follow soon.
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Length: 7:42 -
Rating: 5.0 (16 ratings) -
View: 2963 -
Author: Dan Vanevenhoven
This video gives you the basics of Radio Propagation: Basic information that includes Sun Spots, Solar flux, K and A factors Why should you be interested in ...
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Length: 3:3 -
Rating: 5.0 (9 ratings) -
View: 4319 -
Author: ChipDipvideo
Ionospheric Radio Wave PropagationAt a height of 60 to 100 kilometers above the Earth the ionized area of the upper atmosphere, also called ionosphere, is lo...
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Length: 6:23 -
Rating: 4.851852 (27 ratings) -
View: 2737 -
Author: dj Busby
Mysteries of the Sun The new slickly produced 5 part series out of NASA is Top Notch. An impressive script alongside stunning visuals (both NASA animations a...
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Length: 4:17 -
Rating: 0 (0 ratings) -
View: 297 -
Author: Fabricio Luciano
Sinal escutado por PY5LF em uma típica passagem do VO52 que apresenta uma oscilação no sinal apos atingir o norte do Brazil. Segundo o Roland PY4ZBZ isso é C...
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Length: 0:21 -
Rating: 5.0 (1 ratings) -
View: 434 -
Author: David Erickson
High frequency radio waves have enough energy to get a strong reflection off of the earth's ionosphere. The high frequency band in ideal for non-line of site...
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Length: 0:46 -
Rating: 5.0 (6 ratings) -
View: 914 -
Author: Jeff Quitney
more at http://quickfound.net/ "First report of Sputnik - animations of rocket used same animations as done for earlier report on the Vanguard story." Public...
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Length: 1:48 -
Rating: 4.3333335 (6 ratings) -
View: 605 -
Author: Jeff Quitney
more at http://quickfound.net/ "Fort Monmouth, New Jersey where army engineers sent radar to moon, closeup of screen shows radar signal, Col. DeWitt speaks, ...
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![Building a Distributed Satellite Ground Station Network - A Call To Arms [28C3]](http://i.ytimg.com/vi/qeyTZ8naunk/0.jpg)
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Length: 53:13 -
Rating: 5.0 (17 ratings) -
View: 3383 -
Author: CCCen
Building a Distributed Satellite Ground Station Network - A Call To Arms Hackers need satellites. Hackers need internet over satellites. Satellites require g...
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Length: 31:2 -
Rating: 0 (0 ratings) -
View: 7 -
Author: wikispeak10
Sputnik 1 ) was the first artificial Earth satellite. It was a 585 mm diameter polished metal sphere, with four external radio antennae to broadcast radio pu...
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Length: 3:58 -
Rating: 4.956188 (913 ratings) -
View: 106719 -
Author: Best0fScience
http://www.facebook.com/ScienceReason ... Science@NASA: EMS Electromagnetic Spectrum (Episode 2) - Radio Waves The electromagnetic spectrum is the range of a...
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Length: 5:0 -
Rating: 0 (0 ratings) -
View: 126 -
Author: Fabricio Luciano
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Length: 8:42 -
Rating: 0 (0 ratings) -
View: 16 -
Author: wikispeak4
Ultra-high frequency designates the ITU radio frequency range of electromagnetic waves between 300 MHz and 3 GHz, also known as the decimetre band or decimet...
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Length: 9:50 -
Rating: 0 (0 ratings) -
View: 337 -
Author: on4hf
Making contacts on VO-52 hamsat satellite.
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