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221 links - and 2 categories

Antennas : Antenna Calculators
  • 3 element Yagi Antenna On-line Caluclator - This article includes an online calculator for a 3 element Yagi Antenna. The formula and basics theory of Yagi Antenna are also explained with examples.
    [ Hits: 839 | Votes: 19 | Rating: 4.59 ]
Antennas : Dipole
  • Dipole Antennas - Basics - Antenna most often used by Hams around the world. Inexpensive, effective and easy to build, what more could anyone ask for in a home made antenna.
    [ Hits: 163 | Votes: 0 | Rating: 0 ]
DX Resources : Contest : Contest Results
  • Contest.RUN - Contest.RUN allows radio amateurs from around the world to follow the competition in real time. You can track the competitors positions as soon as the data is received by the server.
    [ Hits: 89 | Votes: 1 | Rating: 8 ]
DX Resources : DX Foundations
  • World Wide Radio Operators Foundation - Dedicated to improving the skills of amateur radio operators around the world, utilizing education, competition, advancement of technology and scientific research, promoting international friendship and goodwill, and preparing them to better serve society in times of communication need.
    [ Hits: 120 | Votes: 0 | Rating: 0 ]
DX Resources : Ham Radio Awards
  • BOTA Beaches on the Air - Beaches On The Air is an award scheme for radio amateurs that encourages portable operation from beaches. You can participate from any country or region around the world. Our beach lists currently contain more than 30,000 beaches and aim to be as exhaustive and objective as possible, and are often based on official sources, such as environmental protection agencies.
    [ Hits: 144 | Votes: 1 | Rating: 10 ]
  • MOTA Mines On The Air - Like SOTA, Summits On The Air, Mines On The Air (MOTA) is an opportunity for Ham Operators to get out, enjoy our hobby and bring others (spotters) along for the ride. It is meant to promote the hobby, enjoy the world around us and bring a bit of history into our lives.
    [ Hits: 125 | Votes: 0 | Rating: 0 ]
DX Resources : IOTA
  • Islands on the Air - IOTA - The official IOTA web site, designed by the IOTA IT Team to meet the specific needs of those participating in the IOTA programme includes IOTA directory, IOTA spots and all the IOTA programme information.
    [ Hits: 167 | Votes: 0 | Rating: 0 ]
Ham Radio : Demographics
  • Ham Census - What do amateur radio operators worldwide, think of their passion? What do we wish for? What are we frustrated about? How many of us are active, versus those that are taking a break? Do we have favorite radios, antennas, or even favorite cw paddles? Do we prefer one contest over another? The best way to find out is if we all participate in Ham Census. Join in and let all amateur radio operators know your thoughts "share your views" then you can find out what everyone else is thinking, in real time. Help shape the future of ham radio by participating in the world's most complete survey of amateur radio.
    [ Hits: 106 | Votes: 2 | Rating: 8 ]
Internet and Radio : Directories
  • World of Receivers and Transmitters - A searchable database of online websdr receivers, lists OpenWebRX, KiWi SDR and WebSDR from all over the world, providing a web interface to search and filter links to websdr
    [ Hits: 307 | Votes: 3 | Rating: 4 ]
Operating Aids : Beginner's Guides
  • Welcome to Amateur Radio for Newcomers - A complete guide for newcomers edited by the Radio Amateur Society of Australia Inc. This free PDF includes several basic articles for new hams, with particular reference to Australian regulations, but is however a good guide for those who are aproaching the hobby worldwide.
    [ Hits: 430 | Votes: 0 | Rating: 0 ]
Operating Aids : History
  • An Overview of US Amateur Call Signs - Past and Present - QST article from May 1994 about history of call signs from the very beginning to present system. Article explains call sign allocations, call areas, prefixes for novices and prefixes like K WA WB WD, callsigns during and after the world war II and other curiosities on US Call signs.
    [ Hits: 429 | Votes: 0 | Rating: 0 ]
Operating Aids : Maps
  • World Grid Square Map PDF - This free PDF file contains two Worldwide grid square maps. The first map displays the fields (first two letters of a maidenhead locator) while the second includes also squares (third and fourth digit) and it can be useful to determine what is your ham radio grid square. PDF file can be enlarged and scaled to A3 and higher dimensions.
    [ Hits: 3313 | Votes: 14 | Rating: 7.15 ]
Operating Modes : Internet Linking : AllStarLink
  • AllStarLink Wiki - Guide to AllStarLink the world wide network of Amateur Radio repeaters, remote base stations and hot spots accessible to each other via the Internet and/or private IP networks.
    [ Hits: 138 | Votes: 0 | Rating: 0 ]
Operating Modes : Morse code : Learning Morse Code
  • CW QSO Trainer - This online web application allows you to train the decoding of Morse code by copying random QSO sentences that can be looped or even mixed.
    [ Hits: 173 | Votes: 7 | Rating: 6.5 ]
Propagation : Observatories
  • Global Ionosphere Radio Observatory - In cooperation with the URSI Ionosonde Network Advisory Group (INAG), the LGDC promotes cooperative agreements with the ionosonde observatories of the world to accept and process real-time data of HF radio monitoring of the ionosphere, and to promote a variety of investigations that benefit from the global-scale, prompt, detailed, and accurate descriptions of the ionospheric variability.
    [ Hits: 125 | Votes: 0 | Rating: 0 ]
Shopping and Services : Accessories
  • SDRGadgets - A gtowing website dedicated to bringing you great accessories to use along with SDR, without breaking the bank. Worldwide shipping and fast dispatch
    [ Hits: 263 | Votes: 2 | Rating: 9.5 ]
Shortwave Radio : Numbers stations
  • How to Listen to Real Spy Broadcasts - Encrypted messages, fancy technology, spies use them all to communicate, but sometimes the best way to hide is in plain sight. Right now, broadcasting across the airwaves around the world, are automated, anonymous shortwave AM radio stations that most governments won't acknowledge even exist, much less explain
    [ Hits: 243 | Votes: 1 | Rating: 1 ]
Software : Time
  • Gray line map for Windows - Gray line map is a windows application for your desktop that show the gray line map of the world. Easy resizable and draggable anywhere in your windows desktop updates the gray line status every 10 minutes
    [ Hits: 1534 | Votes: 3 | Rating: 7.67 ]
  • JTSync - JTSync is a simple utility that provides the ability to synchronize your computer clock over a network with world-wide NTP servers. When the Internet connection is not available, JTSync allows you to make time adjustments based on decoded QSOs within the WSJT-X application.
    [ Hits: 2614 | Votes: 5 | Rating: 7.8 ]
Technical Reference : Sound Card Radio Interfacing
  • Soundcard Interfacing - The sudden explosion of new digital modes has taken the Amateur Radio world by storm. New modes such as PSK31 FT8 JT65 FSK441, ISCAT as well as established modes such as RTTY, SSTV, Hellschreiber and others have rocketed in popularity. In order to use these modes all that is required is a simple computer-to-radio interface which couples the computer soundcard to the radio
    [ Hits: 190 | Votes: 0 | Rating: 0 ]

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