PPT-RET 2013: Information in Radio Waves

Ken Jacobs Tim Scaduto Fundamentals of EM spectra with emphasis on radio frequencies History of radio astronomy Information theory and Remote Sensing Information transmitted through radio Natural sources of radio . 2013 National . Jamboree. Radio. Merit Badge. 07122013. 1. K2BSA. Class Sessions. 2013 National . Jamboree. Radio Merit Badge. Session 1 – Radio basics, safety, and amateur radio. Session 2 – Amateur radio operating experience. Section . 1- What . are electromagnetic waves?. WHAT DO CORDLESS PHONES AND MICROWAVE OVENS HAVE IN COMMON?. Each emits electromagnetic waves.. Remember…. A . wave. . is a repeating disturbance or movement that transfers energy through matter or space.. ELECTROMAGNETIC SPECTRUM. Training of Trainers for Grade 10 of the K to 12 Enhanced Basic Education Program. April 27 – May 2, 2015 . (Luzon Cluster). Spiraling of concepts. Module 2 Competencies. Module 2 activities. There’s a whole lot of light out there!. The Electromagnetic Spectrum. The electro-magnetic spectrum is made up of visible and . nonvisible. light.. Electromagnetic waves are produced by stars and galaxies.. © . Tim . Pratt . 2012. 1. REU June 2013. Biological Effects of Radio Waves. or . Are Cell Phones Dangerous to Your Health?. Tim Pratt, Instructor. Summer 2013. © Tim Pratt 2012 . 2. 2. Summer 2013. RADAR. By Tony Kim and Ross Chu. Block D. Physics. RADAR which stands for . RAdio. Detection And Ranging was developed by Britain in the late 1930’s, during WW2. Before the war, Radars were used to detect objects through the usage of radio waves. Waves. Wave. A . repeating movement or disturbance that transfers energy through matter or space.. All waves carry energy without transporting matter from place to place.. Molecules pass energy along to neighbor molecules who then pass energy to neighbor. Alex Hills. Chapter 27. Summary. Communication engineer Alex Hills explains how the satellite communications systems he designed for rural Alaskans helped him develop Wi-Fi system. Because of tough terrain, laying telephone wire was not feasible, and shortwave radio signals often met interference from the Northern Lights. Alex helped devise a communications system using satellite technologies that allowed rural Alaskans to communicate across the tundra. Eventually, Hills was instrumental in linking the state’s university campuses together via satellite. The wireless network inspired Hills to develop the first Wi-Fi at Carnegie Mellon University in the 90’s.. Surface accuracy not so important, so easy to make large one.. angular resolution . . . wavelength. mirror diameter. D larger than optical case, but wavelength . much. larger (cm's to m's), e.g. for wavelength = 1 cm, diameter = 100 m, resolution = 20".. Lecture . 6. 5. Radio Communication. Ozgur. . Unal. 1. Radio Communication. 2. Name different forms of electronic communication. Radio Transmission. 3. The music and words you hear from a radio are sent to your radio by radio waves (EM waves).. RET 2013. MIT Haystack Observatory . Learning Objectives. Communicate. technical information about how some technological devices use the . principles of wave behavior and wave interactions with matter . Waves!. Play Multimedia. Outline. Wave Basics. Electromagnetic . Spectrum . Tour. Radio Detection . And . Ranging (Radar). SAR vs. ISAR. Applications in Geometry. Rise to the challenge. Wave Basics. A . Radiation and Law of Reflection. Chapter 18:2. And Chapter 19.1 page 570. Electromagnetic Spectrum. Today . we know that there is a full range of electromagnetic radiation known as the . electromagnetic spectrum. Waves. What is a wave?. A wave is a disturbance that travels from one location to another location. The traveling disturbance in a wave is carrying energy (NOT matter). Waves that require a medium to travel through are .