Search results

At LCWO you can learn Morse telegraphy (CW) online in your browser. You don't need to install a program on your computer, and you always have your personal settings available, from any computer on the globe with an internet connection. You can also easily track your progress by means of different statistical functions.

List of commnly used abbreviations in radio telegraphy communications

Managing extensive QSO data efficiently requires robust logging software capable of handling diverse operational needs, from casual ragchewing to competitive contesting. HAM OFFICE provides a comprehensive solution for amateur radio operators, integrating essential logging functionalities with advanced features for analysis and award tracking. It supports detailed QSO entry, offers various display and evaluation options, and includes helpful functions to guide users through its interface, ensuring a smooth workflow for both new and experienced hams. The software's design emphasizes user-friendliness while incorporating a wide array of functions, making it suitable for different screen sizes and operating preferences. It features innovative databases for enhanced data protection, improved handling despite increased functionality, and significant speed gains from new background calculations. The program runs stably on Windows XP through 11 (32 and 64 bit) and offers a mobile app for QSO entry and analysis on _tablet PCs_ and smartphones. HAM OFFICE is widely adopted, with an estimated **80%** of German contests logged using the software, and it is utilized by amateurs in **58** DXCC entities. The program supports various aspects of amateur radio, including contest logging, detailed evaluations, and integration with internet resources and shack equipment. It also provides specific support for new license classes like DN9 and actively supports initiatives such as the recognition of _Morse Telegraphy_ as a cultural heritage.

A freware book on learning morse-code. The Art & Skill of Radio-Telegraphy Third Revised Edition by William G. Pierpont N0HFF, online version available in multiple languages

qrq is an open source Morse telegraphy trainer which runs on several operating systems (Linux, Unix, OS X and Windows), similar to the classic DOS version of Rufz by DL4MM.

Association with free membership for telegraphy lovers across the world.

A Tribute to Morse telegraphy and resource for wire and wireless telegraph historians and key collectors

For those who are interested in telegraphy, for those who would like to learn it, for those who love it, and for those who want to improve their skills in it

New and used books on telegraphy, key collecting, antique radio and communication-related subjects, as well as vintage telegraph instruments

At LCWO you can learn Morse telegraphy (CW) online in your browser, use Koch Method, compare your results with others, speed practice and more

Telegraphy collection, telegraph, sounder, relay by F8JZR in french

A website for those who also enjoy Morse code telegraphy and the keys that make it.

High speed telegraphy without key clicks by SM5BSZ

Telegraph Key Collection, ham radio telegraphy, cw, radio telegraphy, ham radio key, morse code key collection, key collecting, El-Key, Nikey, Vibroplex Champion, Vibroplex Blue Racer 2000, Bug, J-38, J-47, Navy Flame Proof key, Bencher, CT 599 MB key, amateur radio, amateur radio history, cw history, morse code history

The New England Historical Radio Society Inc. is an organization dedicated to the preservation of commercial Morse Radiotelegraphy on medium and high frequency.

21st Century telegraphy paddles, software defined telegraphy paddles by 9A5N. Following global trends in the application of the latest technology, HAM 9a5n has made a significant technological breakthrough in the field of CW paddles

High Speed Telegraphy enthusiasts club established in 1952

High Speed CW page at wikipedia

Official page of the IARU High Speed Telegraphy Championships

An introduction to develpment of morse keys in radiotelegraphy history

Club dedicated to preservation and and encouragement the art of telegraphy communication.

The online Morse code translator and decoder provides functionality for converting plain text into Morse code and decoding Morse code back into text. Users can input text directly into a designated box for translation to Morse, with the tool ignoring characters that lack a Morse equivalent. Conversely, Morse code can be entered using periods for dots and minus signs for dashes, requiring a single space to separate letters and a forward slash to delineate words. The interface also supports direct Morse input via a button, where a half-second pause separates letters and a 1.5-second pause separates words. The resource details the historical context of Morse code, noting its invention by _Samuel F.B. Morse_ in the 1830s for telegraphy, and its continued use by amateur radio operators for recreational purposes and emergency signaling, such as the **SOS distress signal**. Guidance on learning Morse code suggests using online translators for practice and listening to amateur radio transmissions. The tool offers an audio playback feature for translated Morse, allowing users to hear the code at various words per minute (WPM) settings. It also includes a visual chart to aid in memorizing the dot and dash sequences for the alphabet.

An international non-profit organization dedicated to the perpetuation of the knowledge and traditions of telegraphy

Highspeed Telegraphy news, history and rankings of HST Championships

MorseKOB is a program for doing landline telegraphy and American Morse with the help of a computer. Can run on Mac OS and Linux, in addition to Windows.

The CW Projects and Resources of Mike Maynard, K4ICY. Includes a brief history and overview of Morse Code and many interesting resources on telegraph

Free PDF book to start learning morse code and to improve your proficiency, freely available in four languages english, german french and italian.

The recognition of telegraphy masked by noise at 40 and 80 signs/min telegraphy speed was studied in 10 normal-hearing subjects at different sound pressure levels (25-85 dB SPL in steps of 5 dB) as well as at different test frequencies (2000, 1000, 800, 630, 500 and 250 Hz). The ability to recognize the signs varied with varying SPL. Recognition for most of the subjects was best at an SPL close to 70 dB. All subjects improved their recognition as the frequency was lowered to 500 Hz, some even at 250 Hz. These facts should be taken into consideration when training telegraphy operators as well as in the construction of radio receivers to permit listening at low frequencies. Furthermore, the critical ratio was calculated at the different test frequencies.