Most Popular Articles
Something to celebrate
At this time of year it is customary to look back at the events of the past and look ahead to the possible future. Like most industries, radio has had its share of setbacks and successes, from a near stifling of Internet radio (thanks to the DMCA and the RIAA and AFTRA actions) to the inspiration of renewed spirit with IBOC and satellite radio. As we look to what is ahead, we need to stop and look at where this all started.
Radio today is a result of the early wireless tests of the late 19
Marconi first began experimenting with radio wave transmissions in 1894 in Bologna, Italy. His early tests were over a range of about two miles and consisted of transmitting the Morse Code for the letter “S.” In 1896 Marconi moved to London, where he filed a patent for his work. In July 1897, the Wireless Telegraph Trading Signal Company was formed, with its first factory started in 1898.
By the end of 1901, Marconi erected a transmitting station at Poldhu in Cornwall, on a peninsula in the Atlantic Ocean. His first North American receiving station was built in Cape Cod. This receiving station was damaged during a storm, and a newer station was built at Signal Hill in St. John's, Newfoundland. This is when Marconi began testing reception of signals across the Atlantic Ocean by experimenting with various antennas, all of which were suspended from kites.
The daily transmission tests were conducted from 1:00am to 3:00am and from noon to 1:00pm. Again, the Morse Code letter “S” was used for the test. The transmitter operator was John Ambrose Fleming, who, in 1904, would invent the thermionic diode tube.
A triumph came on December 12, 1901, just after 12:00pm, when the signal was received across the distance of more than 2,000 miles. Marconi showed that radio waves could be used to cover great distances by receiving a signal transmitted across the Atlantic Ocean. Previously, most transmissions were made over short ranges of a few miles at most. This test set the path for radio to be accepted as a viable means of communication over great distances, and the event spurred a great interest in the further development of radio's capabilities.
These early radio efforts led to significant advances, including the work of such pioneers as Deforest, Sarnoff, Armstrong and others. Radio continues to grow and develop today, and while some changes are more dramatic than others, the work of radio's modern pioneers continues the spirit of innovation and ingenuity that was seen 100 years ago in radio's infancy.
Take a moment and consider how far radio has advanced from the spark-gap transmitters to the enhanced version of terrestrial, Internet and satellite radio we have today. When you celebrate the New Year, toast the innovators, like Marconi, who made our industry possible. Since technology advances on a curved scale, who knows what radio will be like in the next 100 years. Undoubtedly, it will change and adapt to serve the needs of the listeners.
Today in Radio History
The history of radio broadcasting extends beyond the work of a few famous inventors.
EAS Information More on EAS
The feed provides feeds for all US states and territories.
Need a calendar for your computer desktop? Use one of ours.
Information from manufacturers and associations about industry news, products, technology and business announcements.
Browse Back Issues[an error occurred while processing this directive]
Also in the March Issue
- The "And More" of Automation
- FCC Enforcement Items to Watch
- Testing AM Antennas
- New Products
- Field Report: Cloud Microphones Cloudlifter CL-1
- New Products at the 2014 NAB Show
- Side by Side: IP Codecs