TECHNOLOGY LANDS END‚ INNOLI‚ MANGALORE -574153 RADAR SYSTEM DESIGN FOR MOVING TARGETS ABSTRACT: RADAR is acronym for Radio Detection And Ranging.As we all know that RADAR is an object detection system which uses radio waves to determine the range ‚ altitude ‚ direction ‚ or speed of objects. The radar dish or antenna Transmits pulses of radio waves or microwaves which bounces off any object in their path.The object returns a tiny part of the wave’s
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Colorado‚USA (60khz) HBG – Switzerland (75khz) DCF77 – main‚Germany (77.5khz) LORAN- longa range navigation – terrestrial navigation‚ low frequency Radio transmitter – ship‚ aircraft LORAN –C operates 90- 110 khz. Used: GPS AM radio: 535khz -1.7mhz (1mhz=300m=328yards) SW radio (5.9mhz to 26.1mhz) Citizens Band radio ( 26.6mhz- 27.41 mhz) FM radio: 88-108mhz (98mhz=10ft) Broadcast channels 3-83 have frequencies in the range from 45-885 MHz. Channels 1-6: 45-83 MHz Channels 7-13: 175-211
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• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • MComm100 – Mass Communication in Society Midterm Review – 12th Ed (Chapters 1 – 9) Understand the definition of ‘encoding’ What is ‘negative feedback’? Characteristics of a mass communication audience What is a ‘media vehicle’? Characteristics of mass communication organizations What vehicles have increased the mobility of the mass media
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ELECTRONIC MASS MEDIA IN TODAY’S SOCIETY MASS MEDIA Mass media refers collectively to all media technologies‚ including the Internet‚ television‚ newspapers‚ and radio‚ which are used for mass communications‚ and to the organizations which control these technologies. Mass media play a significant role in shaping public perceptions on a variety of important issues‚ both through the information that is dispensed through them‚ and through the interpretations they place upon this information. The
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(LOng RAnge Navigation) - is a terrestrial radio navigation system using low frequency radio transmitters in multiple deployment (multilateration) to determine the location and speed of the receiver. - The most recent version of LORAN in use is LORAN-C‚ which operates in the low frequency portion of the electromagnetic spectrum from 90 to 110 Kilohertz. ♦ History -LORAN was an American development‚ advancing the technology of the British GEE radio navigation system that was used early in World
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radiation is a form of energy that exhibits wave-like behavior as it travels through space. Electromagnetic radiation can be categorized into two types: ionizing which consist of x-rays‚ radon‚ and cosmic rays and also non-ionizing which consist of radio frequency
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main forms of mass media were books‚ newspapers‚ magazines‚ and radio. One major development toward the evolution of mass media during this time was in 1912 that lives on the Titanic were saved by onboard wireless operators. In the early 1920s electricity and microphones were introduced. Another event was the first commercial advertisement in 1922. The year 1927 held a few steps toward the evolution of mass media. Congress issues radio licenses‚ sound comes to movies‚ and the first TV transmission
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PF/5423/ Dissertation/SC-33 PREPAREDNESS OF CORPS OF SIGNALS TO SUPPORT TOTAL PEOPLE’S WAR INTRODUCTION 1. Bangladesh is land-locked on its three sides by a single neighbour with an opening of Bay-of-Bengal on its south. Strategically‚ it is a matter of concern that the surrounding neighbourhood has the fifth largest army in the world. Therefore‚ a viable security concept has always been a matter of serious concern as well as a challenge for a country like Bangladesh. We really cannot get
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radiation from GSM base antennas in Nigeria for supporting evidence public health risks from gsm radiations that are documented in published scientific studies in respected‚ peer-reviewed journals. Therefore‚ measurements of the exposure levels of radio frequency (RF) Electromagnetic energy (EME) radiated from Mobile telephone base stations were conducted in following manner. The base stations antenna on these sites are the more common panel antenna‚ which divide the area around the base station
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Technological and Scientific advances in the 1920’s The Roaring Twenties was a decade full of advances in many aspects. A big part of these advances were scientifically and technologically related. Medicine went through revolutionary changes during these years‚ so did electrification and cars. Some new inventions also became popular very quickly such as Broadcasts. Throughout the 1920’s there were different medical discoveries. A new type of drug to fight infections and viruses was discovered
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