of wireless networks include cell phone networks‚ Wi-Fi local networks and terrestrial microwave networks. “Wireless Basic Requirements” The key hardware components of a wireless computer network include adapters‚ routers and access points‚ antennas and repeaters. Wireless Network Adapters Wireless network adapters (also known as wireless NICs or wireless network cards ) are required for each device on a wireless network. All newer laptop computers incorporate wireless adapters as a built-in
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included an upgrade to Category 6 cabling‚ multiple cable drops to move all of my desktop machines to cable versus wireless connections and the installation of a HD Homerun Ethernet TV tuner to decode the content received from the over-the-air via antenna. I determined that my existing backup solution was still viable so no changes in that area were
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There are three powerful detachable external antennas and three internal ones. This gives you six highly efficient antennas for long-range connecting. What makes the wireless router even more attractive is the support of the latest Wireless-AC technology. Assign different devices to the 2.4 or 5GHz bands‚ for a maximum speed performance
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receivers pick up the waves and turn them into sound. Three more types of radio waves are; ground waves‚ ionospheric waves and tropospheric waves. Ground waves travel from the antenna along the surface of the earth. Ionospheric waves‚ otherwise known as sky waves‚ are made up of radio waves that come from a transmitting antenna and go into the sky. The ionosphere is the region of the rare field and ionized atmosphere around the earth‚ from 50 to 200
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Embedded systems (Life detecting circuit using PIC microwave controller) ABSTRACT: A new revolutionary microwave life detection system. Which is used to locate human beings buried (or) trapped under earthquake rubble has been designed. This system operating at certain frequency can remotely detect the breathing and heart beat signals of human beings buried under earthquake rubble. By proper processing of these signals‚ the status of the person under trap can
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CHAPTER I ------------------------------------------------- INTRODUCTION 1.1 Introduction Portable electronic devices are very popular nowadays. As the usage of these portable electronic devices is increasing‚ the demands for longer battery life are also increasing. These batteries need to be recharged or replaced periodically. It is a hassle to charge or change the battery after a while‚ especially when there is no power outlet around. Therefore‚ our team is inspired to design a wireless
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range‚ altitude‚ direction‚ or speed of both moving and fixed objects such as aircraft‚ ships‚ motor vehicles‚ weather information and terrain. The term RADAR was coined in 1941 as an acronym for RA dio D etection A nd R anging. A long-range radar antenna‚ known as ALTAIR. 4 Introduction: Introduction Ultrasonic RADAR is basically one of the applications of the RADAR system. It consists of a set of ultrasonic transmitter and receiver‚ both of which operate at the same frequency. When something moves
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2012 Estimation of Electromagnetic Radiation from Base Station Antenna R. K. Singh Abstract—In the present paper‚ an observation of electromagnetic radiation from base station antennas installed for various communication purposes has been done on the basis of equivalent isotropically radiated power (EIRP) calculations. For this purpose‚ a typical wireless communication site has been selected where GSM‚ CDMA‚ 3G/UMTS and WiMAX antennas are installed. The overall ration of EIRP and threshold EIRP combining
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Updated RFID just like Barcode It is a “Tool” for “Data Collection” What is RFID ? Systems Scanning Limited Radio Frequency IDentification (RFID) Read Only “Unique Serial ID” Antenna Read / Write “User Accessible Memory” •Item Code •Lot Number •Manufacturing Date • . . . etc RFID Chip Antenna What is RFID ? Memory Space in RFID Tag What is RFID ? Systems Scanning Limited Non-Contact Reading‚ using Radio Signals What is RFID ? Key Components RFID Tag Reader
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are very visual creatures - but have no real defense mechanism‚ so they rely on the shrimp for shelter the shrimps use their antenna to stay in "touch" (litearlly) with the goby and if the goby sees danger‚ he’ll shiver and the shrimp will run back into the hole and if the shrimp goes and getsfood... and gets lost.. the goby will see him and run over and touch his antenna...and lead him back to his hole if they’re unable to dig or have different type of (blah) to burrow out... lower chance
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