Essays Tagged: "Radio frequency"

An Introduction to Wireless Networks.

you with the Industry standards and Issues.Wireless MediaWireless connections all use some form of Radio Frequency (RF) technology, using air as the transmission medium instead of a wire to transmit ... m instead of a wire to transmit and receive data.There are 5 categories generally used for networks.Radio - this term is used to encompass frequencies between 3MHz- 1 GHz and covers radio broadcasting ...

(7 pages) 438 1 4.7 Jul/2003

Subjects: Science Essays > Computer Science

Do Cell Phones Cause Health Risks? Radiation's Effects on the Human Body.

ssociated with telecommunication devices. The radiation emitted by cellular phones is classified as radio frequency or RF (US FDA, 1), and is expressed in a unit called a hertz (HZ), which is equal to ... ulnerable (US FDA, 2).The most important use of RF waves is for telecommunications purposes such as radio and television broadcasting, wireless phones, pagers, police and fire department radios, and s ...

(6 pages) 194 2 4.6 Mar/2004

Subjects: Social Science Essays

Wireless Technology

uetooth, who rained from 940 to 985 A.D. and united Denmark and Norway. Bluetooth uses a short wave radio frequency on a 2.4 GHz range (Lee).The wireless LAN (WLAN) market is in its infancy as today's ... each user and application, robust protocols that also optimizes the overall output of the available radio resource, making it the most spectrum-efficient WLAN technology operating at 5 GHz (Why).Inter ...

(4 pages) 242 1 3.5 May/2004

Subjects: Science Essays > Technology

Cell Phone Radiation Syndrome C.P.R.S.

the world.1. How do phones emit radiation?In order to operate, cell phones have to emit signals via radio waves, which are comprised of RF energy, a form of electromagnetic radiation. When you talk on ... lk on a cell phone a transmitter takes the sound of your voice and encodes it onto a sine wave. The radio waves that are used to send the encoded signal to the cellular tower are made up of electromag ...

(1 pages) 75 1 3.8 Jun/2004

Subjects: Science Essays

Radio Frequency Identification

better reporting of profit and loss, return on investment using a low cost technological solution. Radio Frequency Identification Device (RFID) is one technology that many companies are considering i ... ion Device (RFID) is one technology that many companies are considering implementing.Description of Radio Frequency Identification Device (RFID)Department of Homeland Security defines Radio Frequency ...

(10 pages) 257 0 3.0 Jan/2006

Subjects: Science Essays > Computer Science

Wireless Technology

ectrum (MicroWorlds, 2003)As shown in figure 1, wireless communication technologies make use of the radio frequency (RF) portion of the electromagnetic spectrum which is approximately between 3 kHz to ... trum which is approximately between 3 kHz to 3 GHz. This range of waves is generally referred to as radio waves. The development of wireless technology is aimed at providing individuals and organizati ...

(14 pages) 217 1 5.0 Aug/2007

Subjects: Businesss Research Papers > Management > Leadership and Communication

VeriChip and the RFID technology - Tracking Technology

cal industry, government and private businesses. Although we can gain much from the "microchip", or radio frequency identifier chip, there are underlying fears generated from changes in the familiar. ... in the familiar. The leading provider company, VeriChip, has introduced the first human implantable radio frequency identifier chip (RFID) which has been approved by the FDA. This implanted chip is th ...

(3 pages) 71 0 4.0 Mar/2008

Subjects: Science Essays > Technology

Media Comparative Analysis

e, it should be said that Bluetooth technology, sophisticated it seems to be, is just a short range radio frequency that does not need any licensing and, therefore, may be used freely by customers wit ... herefore, may be used freely by customers without any serious limitations concerning legislation on radio frequency. This means that this technology is accessible to absolutely all users without any l ...

(6 pages) 457 1 0.0 Sep/2009

Subjects: Art Essays

Wireless Networking, Personal Area Networks

PageWireless NetworkingWireless TransmissionPersonal Area Networksfind examples of devices that use radio frequency technology and those that use infrared (IR which includes the IrDA specifications Ir ... response systemsEnvironmental control systems a. Windows b. Doors c. Lights d. Curtains e. Beds f. RadiosHeadphonesHome security systemsNavigation systemsSignageTelephonesTVs, VCRs, CD players, stere ...

(9 pages) 61 0 0.0 Apr/2010

Subjects: Science Essays > Computer Science

Riordan Manufacturing Inc

) the system that team B is suggesting is the implementation of an outsight barcode system known as Radio Frequency Identification Technology (RFIT).Currently all the raw materials are received at the ... ing the manufacturing process will increase accuracy of orders and create better inventory control. Radio Frequency Identification Technology (RFIT) would be a beneficial investment for Riordan Manufa ...

(8 pages) 87 0 0.0 Apr/2010

Subjects: Businesss Research Papers > Case Studies

Time Hopping Spread Spectrum

extensively since then for military and other applications. Spread spectrum is a technique used in radio transmissions whereby a transmitted signal is spread over or occupies a wide frequency band. I ... requency band. In the case of radio transmission, the signal spreads over a much larger part of the Radio Frequency spectrum that is much wider than the minimum bandwidth required for transmitting the ...

(5 pages) 0 0 0.0 Oct/2013

Subjects: Science Essays > Technology

RFID in the Business World

RFID's is a non-contact (Wireless) use of radio-frequency from transferring data, for an automated identifying and tracking. These tags may re ... ttery and can be read at short ranges via magnetic fields. Others use a local power source and emit radio waves. A tag contains electronically stored information which may be read from a distance. Dif ... onstant monitoring and improvement in overall operations. References http://en.wikipedia.org/wiki/Radio-frequency_identification http://rfid.net/applications/retail http://www.retailtouchpoints.co ...

(4 pages) 7 0 0.0 Nov/2013

Subjects: Businesss Research Papers > Case Studies > E-commerce