{"id":51062,"date":"2021-12-12T09:29:06","date_gmt":"2021-12-12T13:29:06","guid":{"rendered":"https:\/\/swling.com\/blog\/?p=51062"},"modified":"2021-12-12T09:29:06","modified_gmt":"2021-12-12T13:29:06","slug":"radio-waves-first-transatlantic-signal-120-years-today-100-years-of-german-radio-nasa-laser-communications-and-ham-transmitter-on-the-moon","status":"publish","type":"post","link":"https:\/\/swling.com\/blog\/2021\/12\/radio-waves-first-transatlantic-signal-120-years-today-100-years-of-german-radio-nasa-laser-communications-and-ham-transmitter-on-the-moon\/","title":{"rendered":"Radio Waves: First Transatlantic Signal 120 Years Today, 100 Years of German Radio, NASA Laser Communications, and Ham Transmitter on the Moon"},"content":{"rendered":"
\"\"<\/a>

Marconi watching associates raising the kite (a “Levitor” by B.F.S. Baden-Powell[47]) used to lift the antenna at St. John’s, Newfoundland, December 1901 (via Wikipedia)<\/p><\/div>\n

Radio Waves:\u00a0 Stories Making Waves in the World of Radio<\/h2>\n

Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest\u00a0SWLing Post<\/em>\u00a0readers.\u00a0 To that end:\u00a0Welcome to the\u00a0SWLing Post\u2019s<\/em> Radio Waves<\/em>, a collection of links to interesting stories making waves in the world of radio.\u00a0<\/strong>Enjoy!<\/strong><\/p>\n

Many thanks to\u00a0SWLing Post<\/em> contributors Trevor R, Andrea Bornino, Wilbur Forcier, and the Southgate ARC for the following tips:<\/p>\n

\n

First radio transmission sent across the Atlantic Ocean (History.com)<\/a><\/h2>\n

Italian physicist and radio pioneer Guglielmo Marconi succeeds in sending the first radio transmission across the Atlantic Ocean, disproving detractors who told him that the curvature of the earth would limit transmission to 200 miles or less. The message\u2013simply the Morse-code signal for the letter \u201cs\u201d\u2013traveled more than 2,000 miles from Poldhu in Cornwall, England, to Newfoundland, Canada.<\/p>\n

Born in Bologna, Italy, in 1874 to an Italian father and an Irish mother, Marconi studied physics and became interested in the transmission of radio waves after learning of the experiments of the German physicist Heinrich Hertz. He began his own experiments in Bologna beginning in 1894 and soon succeeded in sending a radio signal over a distance of 1.5 miles. Receiving little encouragement for his experiments in Italy, he went to England in 1896. He formed a wireless telegraph company and soon was sending transmissions from distances farther than 10 miles. In 1899, he succeeded in sending a transmission across the English Channel. That year, he also equipped two U.S. ships to report to New York newspapers on the progress of the America\u2019s Cup yacht race. That successful endeavor aroused widespread interest in Marconi and his wireless company.<\/p>\n

Marconi\u2019s greatest achievement came on December 12, 1901, when he received a message sent from England at St. John\u2019s, Newfoundland. The transatlantic transmission won him worldwide fame. Ironically, detractors of the project were correct when they declared that radio waves would not follow the curvature of the earth, as Marconi believed. In fact, Marconi\u2019s transatlantic radio signal had been headed into space when it was reflected off the ionosphere and bounced back down toward Canada. Much remained to be learned about the laws of the radio wave and the role of the atmosphere in radio transmissions, and Marconi would continue to play a leading role in radio discoveries and innovations during the next three decades. [Continue reading at History.com…<\/a>]<\/p>\n

How radio became a cult in its early years in Germany (DW)<\/a><\/h2>\n

A century ago, the age of radio began in Germany. Cultural broadcasts made radio popular before the Nazis appropriated it for their propaganda.<\/p>\n

On December 22, 1920, the first radio broadcast in Germany hit the airwaves. “Attention, attention \u2014 this is K\u00f6nigs Wusterhausen on radio wave 2700.” This was how a Christmas concert by the employees of the German Reichspost was announced. Featuring a clarinet, reed organ, string instruments and piano, they played in the broadcasting building of the city of K\u00f6nigs Wusterhausen.<\/p>\n

Modest sound quality<\/strong>
\nTransmission quality was poor: static and crackling accompanied the musical performance. Only official agents of the German Reichspost could listen to this transmission since in accordance with the Treaty of Versailles, private citizens in Germany were forbidden from listening to radio signals.<\/p>\n

Society on the move<\/strong>
\nNonetheless, radio in Germany was born. Society at the time of the Weimar Republic was in transition. Painters were no longer merely depicting the natural worlds \u2014 Cubism, Dadaism and abstract art were unearthing new dimensions of the imagination that had no direct reference to reality. Musicians and composers were creating hitherto unheard-of sounds with jazz and twelve-tone techniques joining familiar rhythms and keys. Writers and poets were creating parallel plots and stories. Consumer products were being mass-produced. Aviation was connecting people over thousands of kilometers \u2014 and radio was booming.<\/p>\n

The first official radio entertainment program in Germany was broadcast on October 29, 1923. The Allies had by then lifted the ban on listening to radio waves. The fact that we even have an acoustic record of it today is due to a coincidence: a few months after it was broadcast, the program was re-enacted and preserved on disc. [Continue reading…<\/a>]<\/p>\n

NASA\u2019s Laser Communications Tech, Science Experiment Safely in Space (NASA)<\/a><\/h2>\n

NASA’s Laser Communications Relay Demonstration (LCRD<\/a>) and a NASA-U.S. Naval Research Laboratory space weather payload to study the Sun\u2019s radiation lifted off at 5:19 a.m. EST on Tuesday, Dec. 7.<\/p>\n

The payloads launched aboard the Space Test Program Satellite-6 on a United Launch Alliance Atlas V rocket\u00a0from Cape Canaveral Space Force Station in Florida as part of the U.S. Space Force’s Space Test Program 3 mission.<\/p>\n

LCRD will demonstrate NASA’s first two-way laser relay communications system, sending and receiving\u00a0data over invisible infrared lasers, which can enable data rates 10 to 100 times greater than radio frequency systems traditionally used by spacecraft.<\/p>\n

“This launch introduces an exciting new technology for space missions,” said Jim Reuter, associate administrator for NASA’s Space Technology Mission Directorate at NASA Headquarters in Washington. “Demonstrating this innovative way of communicating with spacecraft will open the door for this technology to expand the horizons of future space missions.”<\/p>\n

The other NASA science payload that launched aboard the satellite was the Ultraviolet Spectro-Coronagraph Pathfinder (UVSC Pathfinder<\/a>), a joint experiment with the Naval Research Lab that studies the origins of solar energetic particles, the Sun\u2019s most dangerous form of radiation.<\/p>\n

\u201cWe\u2019re thrilled to welcome UVSC Pathfinder to the heliophysics observatory fleet,\u201d said Daniel Moses, chief technologist in the Heliophysics Division at NASA Headquarters. \u201cThis collaboration has the potential to develop a new, high-impact tool with predictive capability for energetic solar particle storms that will enable future space missions, helping us explore farther and travel safer.\u201d<\/p>\n

NASA’s LCRD will demonstrate the\u00a0benefits<\/a>\u00a0of space-to-ground laser communications, also called optical communications. LCRD will send and receive data\u00a0at a rate of 1.2 gigabits per second from geosynchronous orbit to Earth. At that speed, you could download a movie in under a minute. Laser communications systems are smaller, lighter, and use less power than radio frequency systems. These advantages, combined with laser communications’ higher bandwidth, can advance robotic and human exploration across the solar system.<\/p>\n

“LCRD is NASA\u2019s key milestone for the buildup of the \u2018Decade of Light\u2019 initiative, which involves the infusion of optical technology into space communications and navigation,” said Badri Younes, deputy associate administrator for NASA\u2019s Space Communications and Navigation program at NASA Headquarters. “By the 2030s, we expect optical technology to play a critical role in enabling an interoperable, reliable, and robust space communications infrastructure, providing seamless operations and roaming capability between government and commercial users and providers.”<\/p>\n

After launch and confirmation that the payload is working well in space, LCRD will begin to transmit and receive data from its location in geosynchronous orbit \u2013 about 22,000 miles above Earth \u2013 with\u00a0ground stations<\/a>\u00a0in California and Hawaii using infrared lasers.<\/p>\n

LCRD will spend two years\u00a0conducting experiments<\/a>, assessing how weather and other changes in Earth’s atmosphere can impact laser communications, and measuring link performance to refine its operational capabilities and processes. Some experiments will simulate relay scenarios between the Moon and Earth to inform how laser communications could one day be used in NASA\u2019s\u00a0Artemis<\/a>\u00a0missions. The experiments and simulations will inform the development of future NASA and commercial missions hoping to utilize optical communications in Earth orbit and for exploration of the Moon, Mars, and beyond.<\/p>\n

Later in its mission, LCRD will serve as a relay between an optical communications terminal on the International Space Station and ground stations on Earth. NASA\u2019s Integrated LCRD Low-Earth Orbit User Modem and Amplifier Terminal will allow for the\u00a0first demonstration<\/a>\u00a0of a fully operational end-to-end laser communications system from the space station.<\/p>\n

LCRD’s mission, vision, design, and development will be covered in depth in the new season of NASA’s\u00a0The Invisible Network<\/a>\u00a0podcast. Over the course of five episodes beginning on Dec. 7 and each Wednesday thereafter, the podcast will highlight the future of the laser communications technologies this mission is proving in space and the people that are making it happen.<\/p>\n

LCRD is led by NASA’s Goddard Space Flight Center in Greenbelt, Maryland, in partnership with NASA’s Jet Propulsion Laboratory in Southern California and the MIT Lincoln Laboratory. LCRD is funded and managed through NASA’s Technology Demonstration Missions program, part of the Space Technology Mission Directorate, and the Space Communications and Navigation program at NASA Headquarters.<\/p>\n

UVSC Pathfinder was designed and built at the U.S. Naval Research Laboratory. It was funded through NASA\u2019s Heliophysics Program and the Office of Naval Research. It is managed by the Heliophysics Technology and Instrument Development for Science program office at NASA Headquarters.<\/p>\n

STP is operated by the United States Space Force\u2019s\u00a0Space\u00a0Systems Command. STPSat-6 was built by Northrop Grumman.<\/p>\n

To learn more about LCRD and laser communications, visit:<\/p>\n

https:\/\/www.nasa.gov\/lasercomms<\/strong><\/a><\/p>\n

World\u2019s smallest moon lander from Japan will put ham radio transmitter on the moon (ARRL via Southgate ARC)<\/a><\/h2>\n
\n

The ARRL reports Japan\u2019s\u00a0OMOTENASHI<\/a>, the world\u2019s smallest moon lander, will have an X-band and UHF communication system, although it will not carry an amateur band transponder.<\/p>\n

OMOTENASHI is a 6U CubeSat set for launch via a NASA SLS rocket as early as February 2022. It will have a mission period of from 4 to 5 days. The name is an acronym for Outstanding Moon Exploration Technologies demonstrated by Nano Semi-Hard Impactor.\u00a0Wataru Torii<\/a>\u00a0of the Japan Aerospace Exploration Agency (JAXA) Ham Radio Club, JQ1ZVI, said radio amateurs can play a role in gathering data from the spacecraft.<\/p>\n

The spacecraft is made up of two separable components, both having independent communication systems \u2014 an orbiting module and a surface probe. The orbiting module will take the surface probe to the moon. It will transmit beacon or digital telemetry data on UHF (437.31 MHz). The surface probe \u2014 the moon lander \u2014 will transmit digital telemetry or three-axis acceleration analog-wave with FM modulation on UHF (437.41 MHz). Transmitter power will be 1 W in both cases.<\/p>\n

\u201cIf we succeed in receiving the UHF signal from the surface probe, we could know the acceleration data on the impact on the moon and the success of the landing sequence,\u201d Torii explained.<\/p>\n

\u201cWe already have a station for uplink and downlink at Wakayama in Japan \u2014 used as an EME [moonbounce] station. However, if the satellite is invisible from Japan, we cannot receive the downlink signal. So, we need a lot of help from ham radio stations worldwide.\u201d Torii noted that the RF system on the lander only operates on UHF.<\/p>\n

The orbiting module beacon will transmit on 437.31 MHz using PSK31. The surface probe beacon will transmit on 437.41 MHz using FM, PSK31, and PCM-PSK\/PM.<\/p>\n

Contact<\/a>\u00a0Torii for more information<\/p>\n<\/div>\n

\n

Do you enjoy the SWLing Post?<\/em><\/strong><\/span><\/h1>\n

Please consider supporting us via\u00a0Patreon<\/span><\/a>\u00a0or our\u00a0Coffee<\/span>\u00a0Fund<\/span><\/a>! <\/em><\/strong><\/p>\n

Your support makes articles like this one possible. Thank you!<\/em><\/p>\n

\"\"<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Radio Waves:\u00a0 Stories Making Waves in the World of Radio Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest\u00a0SWLing Post\u00a0readers.\u00a0 To that end:\u00a0Welcome to the\u00a0SWLing Post\u2019s Radio Waves, a collection of links to interesting […]<\/p>\n","protected":false},"author":15,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[3,288,43],"tags":[8552,328,1547,1314,4274,9575,1672,9576,8259,580,9565],"class_list":["post-51062","post","type-post","status-publish","format-standard","hentry","category-news","category-radio-history","category-shortwave-radio","tag-arrl-news","tag-deutsche-welle","tag-germany","tag-guglielmo-marconi","tag-japan","tag-laser-communications","tag-nasa","tag-omotenashi","tag-radio-waves","tag-southgate-arc","tag-transatlantic-tests"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_shortlink":"https:\/\/wp.me\/pn3uc-dhA","jetpack-related-posts":[{"id":60955,"url":"https:\/\/swling.com\/blog\/2024\/11\/radio-waves-rti-receives-top-rank-vatican-radio-interview-and-the-complications-communicating-with-voyager-i\/","url_meta":{"origin":51062,"position":0},"title":"Radio Waves: RTI Receives Top-Rank, Vatican Radio interview, and the Complications Communicating with Voyager I","author":"Thomas","date":"November 5, 2024","format":false,"excerpt":"Radio Waves:\u00a0 Stories Making Waves in the World of Radio Welcome to the\u00a0SWLing Post\u2019s Radio Waves, a collection of links to interesting stories making waves in the world of radio.\u00a0Enjoy! Many thanks to SWLing Post contributors David Iurescia and Mike Robinson for the following tips: Rti secures top ranking in\u2026","rel":"","context":"In "International Broadcasting"","block_context":{"text":"International Broadcasting","link":"https:\/\/swling.com\/blog\/category\/international-broadcasting\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/Voyager-e1503227452640.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/Voyager-e1503227452640.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/Voyager-e1503227452640.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/08\/Voyager-e1503227452640.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":48680,"url":"https:\/\/swling.com\/blog\/2021\/04\/radio-waves-radio-survivor-covers-pirates-pt-2-radio-scatter-and-theoretical-wspr-rip-bob-fass-and-vatican-radio-celebrates-marconi-day\/","url_meta":{"origin":51062,"position":1},"title":"Radio Waves: Radio Survivor Covers Pirates Pt. 2, Radio Scatter and Theoretical WSPR, RIP Bob Fass, and Vatican Radio Celebrates Marconi Day","author":"Thomas","date":"April 27, 2021","format":false,"excerpt":"Radio Waves:\u00a0 Stories Making Waves in the World of Radio Because I keep my ear to the waves, as well as receive many tips from others who do the same, I find myself privy to radio-related stories that might interest\u00a0SWLing Post\u00a0readers.\u00a0 To that end:\u00a0Welcome to the\u00a0SWLing Post\u2019s Radio Waves, a\u2026","rel":"","context":"In "AM"","block_context":{"text":"AM","link":"https:\/\/swling.com\/blog\/category\/am\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/03\/Kenwood-R-2000-Dial.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/03\/Kenwood-R-2000-Dial.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/03\/Kenwood-R-2000-Dial.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/swling.com\/blog\/wp-content\/uploads\/2017\/03\/Kenwood-R-2000-Dial.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":52798,"url":"https:\/\/swling.com\/blog\/2022\/05\/radio-waves-broadcast-tower-climbers-sony-icf-sw1-repair-franken-fm-status-and-marconi-in-a-van\/","url_meta":{"origin":51062,"position":2},"title":"Radio Waves: Broadcast Tower Climbers, Sony ICF-SW1 Repair, Franken-FM Status, and Marconi in a Van","author":"Thomas","date":"May 24, 2022","format":false,"excerpt":"Radio Waves:\u00a0 Stories Making Waves in the World of Radio Welcome to the\u00a0SWLing Post\u2019s Radio Waves, a collection of links to interesting stories making waves in the world of radio.\u00a0Enjoy! 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