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Amateur radio

Amateur radio
An example of an amateur radio station with four transceivers, amplifiers, and a computer for logging and for digital modes. On the wall are examples of various awards, certificates, and a reception report card (QSL card) from a foreign amateur station. Amateur radio (also called ham radio) is the use of designated radio frequency spectra for purposes of private recreation, non-commercial exchange of messages, wireless experimentation, self-training, and emergency communication. The term "amateur" is used to specify persons interested in radio technique solely with a personal aim and without direct monetary or other similar reward, and to differentiate it from commercial broadcasting, public safety (such as police and fire), or professional two-way radio services (such as maritime, aviation, taxis, etc.). History[edit] An amateur radio station in the United Kingdom. Ham radio[edit] Activities and practices[edit] Licensing[edit] The top of a tower supporting a yagi and several wire antennas

http://en.wikipedia.org/wiki/Amateur_radio

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Ham Radio The ARRL Repeater Directory® ...Powered by TravelPlus™NEW 2014-2015 Edition One for the Road... Now the best directory of frequencies for the 23,000+ Amateur Radio repeaters around the country is available to you…anytime…anywhere. Containing the entire ARRL Repeater Directory and powered by TravelPlus you can now...

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Kenwood TS-140S Transceiver - RigReference.com (5.0/5) Add a review / View all reviews Desktop Shortwave Transceiver The Kenwood TS-140S is a high performance HF transceiver designed for SSB, CW, AM and FM modes of operation on all amateur bands (160-10 Meters). This compact, lightweight unit features an outstanding 500 kHz to 30 MHz general coverage receiver with superior dynamic range. The dual 10 Hz step digital VFOs operate independently of each other. 31 Memory channels can store frequency, mode and narrow-wide information at CW mode. 10 Memory channels (CH10 to CH19) store transmit and received frequencies independently allowing repeater or split frequency operation. 11 Memory channels (CH20 to CH30) establish the upper lower limits for band scanning. The scanning speed is adjustable.

United States Military Telegraph - Morse Code Files The USMT CW Communicator Ionosphere server! Use our server address of "cw.trwagner.org" in your CW Communicator program! Practice CW, DOT or any version of MorseCode you choose. For DOT Code, please use channel 1863. Ham Radio Glossary Safety interlock -- A switch that automatically turns off ac power to a piece of equipment when the top cover is removed. Schematic symbol -- A drawing used to represent a circuit component on a wiring diagram. Selectivity--The ability of a receiver to separate two closely spaced signals. Sensitivity--The ability of a receiver to detect weak signals. NOVA The 100-Year-Old Idea That Could Change Flight Inspired by birds, bats, and the Wright brothers, engineers are building the next breakthrough in aviation. From NOVA Next | Feb 22, 2017 Key Brain Regions Found To Be Smaller in People With ADHD In the largest study of its kind, research shows people with ADHD have smaller brain regions—including the amygdala, which is responsible for regulating emotions. From NOVA Next | Feb 17, 2017

Code Practice Files Text Source for W1AW Web Code Practice Files for April 15 and 16, 2014: Text for the 5 to 15 WPM runs comes from December 2012 QST, page 59. Text for the 20 to 40 WPM runs comes from September 2013 QST, page 49. The various archive files are available from the following links. Access to each other archive is also available from any of these various pages: Ham Radio Jargon, Abbreviations and Terminology This is an informal listing of Ham Jargon -- The opinions of AC6V Only. Not to be used as a definitive source. Caveat Lector. Earn points for savings on gift cards, name-brand merchandise and more with Rewards for Good SWEEPSTAKES RULES: NO PURCHASE NECESSARY. PURCHASE WILL NOT INCREASE YOUR CHANCES OF WINNING. Open to AARP account holders who are enrolled in the Rewards for Good Program, who are 50 U.S./D.C. residents (excluding Florida), 18 or older at time of entry. See full Official Rules for complete entry details, participating states, deadlines, prizes, and how to enter without obligation.

Etymology of ham radio Ham radio is a popular term for amateur radio, derived from "ham" as an informal name for an amateur radio operator. The use first appeared in the United States during the opening decade of the 20th century—for example, in 1909, Robert A. Morton reported overhearing an amateur radio transmission which included the comment: "Say, do you know the fellow who is putting up a new station out your way? I think he is a ham."[1] However, the term did not gain widespread usage in the United States until around 1920, after which it slowly spread to other English-speaking countries. Nextdoor Villages of Piedmont: The website for Villages of Piedmont residents Nextdoor for Android Get it on Google Play There was a problem connecting your Facebook account. Please sign in to Nextdoor Villages of Piedmont to continue.

The AMBER Alert System And Amateur Radio's Role How Does the AMBER Plan Work? Once law enforcement has been notified about an abducted child, they must first determine if the case meets the AMBER Plan’s criteria for triggering an alert. Each program establishes its own AMBER Plan criteria; however, the National Center for Missing & Exploited Children suggests three criteria that should be met before an Alert is activated. Law enforcement confirms a child has been abducted.

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