Last month we looked at Marconi and his pioneering work in the advancement of wireless communications. In the early days of radio, prior to government regulation, anyone with the knowledge could build a transmitter and go on the air. Even after the first attempts at regulation, one could still do this, the only rules being a mandate to yield to commercial traffic and to remain silent for a five minute period at the top of the hour to allow for distress traffic from ships at sea. In the days before what we now think of as “broadcasting,” commercial traffic was considered to be the handling of messages between ship and shore stations, or between areas not connected with wires, such as overseas. Everyone else was considered an “amateur,” even if they were a professor at a university, or an engineer trying to develop a new system. World War I brought further regulations prompted by the military, who realized the potential for this new form of communication. Eventually, licensing became the norm, with three types of licenses issued: commercial, for handling messages for hire, experimental, for research and development, and amateur, for others who wished to explore the art as a hobby or outside of what was specified by the other classes of licenses. Still, there were few limits as to what frequency to us…..READ MORE
CQ DATV Contents DATV News Editorial Reader review comments on DATVtalk11 Local Oscillator PLL for Digilite project DATV-Express Project – November up... Read more
Request for free an Azimuthal Map for any place in World: http://ns6t.net/azimuth/azimuth... Read more
“[Kevin] recently scored a Morse code keyer/sounder unit from the 1920s on eBay. While many hams would love to use an old keyer fo... Read more
[Updated 2016-07-29@1807 UTC] Hamvention® has announced that Hara Arena, the home of Hamvention since 1964, is closing, but Hamvention will continue.... Read more
INTERNATIONAL MARCONI DAY – 141st anniversary of the birth of Guglielmo Marconi The Lions Club in collaboration with the ARI Rapallo and the su... Read more
YAESU Catalog – The Radio The Yaesu brand is well known among ham radio aficionados and is synonymous with premium quality ham radios. From sta... Read more
Jan, PA2P, will visit Ethiopia for work from September 13th until September 24th2015. He will travel around the country. When work and time permits, h... Read more
The February 6 NCJ-sponsored North American Sprint (CW) and the March 13 RTTY Sprint will begin 1 hour earlier, at 2300 UTC instead of 0000 UTC. Both... Read more
“We got a great demonstration on how the FCC Enforcement team keeps unlicensed & wireless spectrum violators at bay. “ Read more
John, G4IRN informs that for CQWW CW this year he will be operating from the station of HR2J in Honduras, entry category yet to be decided. He arrives... Read more
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CQ DATV – Issue 19 – January 2015 ( Free )
Free Azimuthal Maps by NS6T
A WIRELESS WEB-CONNECTED MORSE CODE KEYER
Good-Bye, Hara Arena! Hamvention to Relocate in 2017!
INTERNATIONAL MARCONI DAY – 141st anniversary of the birth of Guglielmo Marconi
Yaesu Catalog – VHF and UHF
ET3AA Ethiopia
Upcoming NCJ CW and RTTY North American Sprints to Start 1 Hour Earlier
FCC Enforcement Team [ VIDEO ]
HR2J – Honduras