Wireless telegraphy (English Wikipedia)

Edwards, Steven A. (2012-10-12). "Heinrich Hertz and electromagnetic radiation". American Association for the Advancement of Science. Retrieved 2024-05-22.

antiquewireless.org

"Heterodyne receiver" (PDF). The AWA Review. 22. The Antique Wireless Association, Inc.: 287–289 2009. ISBN 978-0-9741994-1-2.

archive.org

Merriam-Webster's Collegiate Dictionary: 11th Ed. Mirriam-Webster Co. 2004. p. 1437. ISBN 0877798095. wireless telegraphy.
Maver, William Jr. (1903). American Telegraphy and Encyclopedia of the Telegraph: Systems, Apparatus, Operation. New York: Maver Publishing Co. p. 333. wireless telegraphy.
Howeth, L. S. (1963). The History of Communications - Electronics in the U.S. Navy. U.S. Navy. p. 509.

arrl.org

"ARRL Letter, FT8 Accounts for Nearly Two-Thirds of HF Activity". www.arrl.org. 2021-04-01. Retrieved 2021-05-08.

atlantic-cable.com

"History of the Atlantic Cable & Submarine Telegraphy - Frank Leslie's Illustrated Newspaper 1858 Cable News". atlantic-cable.com. Retrieved 2024-05-22.

atlasobscura.com

Spencer, Luke (2015-06-02). "Technology You Didn't Know Still Existed: The Telegram". Atlas Obscura. Retrieved 2024-05-17.

books.google.com

Hawkins, Nehemiah (1910). Hawkins' Electrical Dictionary: A cyclopedia of words, terms, phrases and data used in the electric arts, trades and sciences. Theodore Audel and Co. p. 498.
Steuart, William Mott; et al. (1906). Special Reports: Telephones and Telegraphs 1902. Washington D.C.: U.S. Bureau of the Census. pp. 118–119.
Schroeder, Peter B. (1967). Contact at Sea: A History of Maritime Radio Communications. The Gregg Press. pp. 26–30.
Krishnamurthy, K. A.; Raghuveer, M. R. (2007). Electrical, Electronics and Computer Engineering for Scientists and Engineers. New Age International. p. 375. ISBN 9788122413397.
Poole, Ian (1998). Basic Radio: Principles and Technology. Newnes. p. 134. ISBN 9780750626323.
Godse, Atul P.; Bakshi, U. A. (2009). Basic Electronics. Technical Publications. p. 12.55. ISBN 9788184312829.^{[permanent dead link]}
Icons of Invention: The Makers of the Modern World from Gutenberg to Gates. ABC-CLIO. 2009. p. 162. ISBN 978-0-313-34743-6.
Mulvihill, Mary (2003). Ingenious Ireland: A County-by-County Exploration of the Mysteries and Marvels of the Ingenious Irish. Simon and Schuster. p. 313. ISBN 978-0-684-02094-5.
Icons of the invention: the makers of the modern world from Gutenberg to Gates. ABC-CLIO. 2009. ISBN 9780313347436. Retrieved July 8, 2011.
Siwiak, Kazimierz; McKeown, Debra (2004-06-07). Ultra-wideband Radio Technology. Wiley. pp. 1–20. ISBN 978-0-470-85931-5.
Poulsen, Valdemar (1905). "System for producing continuous electric oscillations". Transactions of the International Electrical Congress, St. Louis, 1904. Vol. 2. J.B. Lyon Company. pp. 963–971.

britannica.com

"Zimmermann Telegram | Facts, Text, & Outcome | Britannica". www.britannica.com. 2024-04-12. Retrieved 2024-05-17.
"Superheterodyne reception | Radio waves, Frequency, Amplification | Britannica". www.britannica.com. Retrieved 2024-05-23.
"Broadcasting | Definition, History, Types, Systems, Examples, & Facts | Britannica". www.britannica.com. 2024-05-15. Retrieved 2024-05-23.

cept.org

docdb.cept.org

"CEPT Radio Amateur Licence Recommendation T/R 61-01" (PDF). 2020-10-23.

comreg.ie

"Amateur Station Licence Guidelines". 2018-04-16. pp. 17, 32.

doi.org

Bondyopadhyay, Prebir K. (1995). "Guglielmo Marconi – The father of long distance radio communication – An engineer's tribute". 25th European Microwave Conference, 1995. p. 879. doi:10.1109/EUMA.1995.337090. S2CID 6928472.

earlyradiohistory.us

earlyradiohistory.us, United States Early Radio History, Thomas H. White, section 22, Word Origins-Radio
"13. Radio During World War One (1914-1919)". earlyradiohistory.us. Retrieved 2024-05-21.

ecfr.gov

Title 47 –Telecommunication Chapter I – Federal Communications Commission Subchapter A – General Part 13 – Commercial Radio Operators

elon.edu

"1830s – 1860s: Telegraph | Imagining the Internet | Elon University". www.elon.edu. Retrieved 2024-05-22.

engineering.com

Maxey, Kyle (17 July 2017). "Why the Navy Sees Morse Code as the Future of Communication". Engineering. com website. Retrieved 19 November 2021.

ethw.org

"Milestones:Alexanderson Radio Alternator, 1904". IEEE Global History Network. 2015-12-31. Retrieved 2024-05-23.

fccid.io

ID, FCC. "Emissions Designator A1A". FCCID.io. Retrieved 2024-05-21.

freeuk.net

home.freeuk.net

"Spark Transmitter Basics". home.freeuk.net. Retrieved 2024-05-21.

g7vjr.org

Wells, Michael (27 March 2021). "Club Log activity report – 2021 update | G7VJR's Blog". Retrieved 2021-05-08.^{[permanent dead link]}

gpo.gov

Individual nations enforce this prohibition in their communication laws. In the United States, this is the Federal Communications Commission (FCC) regulations: "Section 2.201: Emission, modulation, and transmission characteristics, footnote (f)". Code of Federal Regulations, Title 47, Chapter I, Subchapter A, Part 2, Subpart C. US Government Publishing Office website. 1 October 2007. Retrieved 16 March 2018.

grfc.ru

"Условия использования выделенных полос радиочастот" (PDF). General Radio Frequency Centre (in Russian). 2015-10-16.

icao.int

ICAO and the International Telecommunication Union Archived 2018-11-06 at the Wayback Machine – ICAO official website

imo.org

"Radiocommunications". International Maritime Organization.
"Introduction/History". International Maritime Organization.

itu.int

"Requirements for Telex and Gentex operation to be met by synchronous multiplex equipment described in recommendation R.44". International Telecommunication Union. 1968.

mizenhead.net

"Marconi at Mizen Head Visitor Centre Ireland Visitor Attractions". Mizenhead.net. Retrieved 2012-04-15.

nationalmaglab.org

Laboratory, National High Magnetic Field. "Morse Telegraph – 1844 - Magnet Academy". nationalmaglab.org. Retrieved 2024-05-22.

nytimes.com

timesmachine.nytimes.com

"Typing in Airplane Received by Radio" (PDF). The New York Times. 1922-08-10.

radiomarine.org

Coast Station KSM

samhallas.co.uk

"BT Museum Memorial Pages - Telegraphy 2". www.samhallas.co.uk. Retrieved 2024-05-23.

semanticscholar.org

api.semanticscholar.org

Bondyopadhyay, Prebir K. (1995). "Guglielmo Marconi – The father of long distance radio communication – An engineer's tribute". 25th European Microwave Conference, 1995. p. 879. doi:10.1109/EUMA.1995.337090. S2CID 6928472.

swling.com

Morse code training in the Air Force

thefreedictionary.com

encyclopedia2.thefreedictionary.com

"continuous wave". TheFreeDictionary.com. Retrieved 2024-05-21.

utexas.edu

"Carrier wave with no modulation transports no information". University of Texas. Archived from the original on 2008-04-14.

web.archive.org

"Carrier wave with no modulation transports no information". University of Texas. Archived from the original on 2008-04-14.
ICAO and the International Telecommunication Union Archived 2018-11-06 at the Wayback Machine – ICAO official website

wellpcb.com

Lu, Emma (2022-02-25). "Beat Frequency Oscillator- Principle and Applications". Circuit Board Fabrication and PCB Assembly Turnkey Services - WellPCB. Retrieved 2024-05-21.

wired.com

"Maritime Morse Is Tapped Out". Wired website. 6 July 1998. Retrieved 19 November 2021.

worldcat.org

Kieve, Jeffrey L., The Electric Telegraph: A Social and Economic History, David and Charles, 1973 OCLC 655205099.