A year-long operating event, “Science Milestones in the History of Radio,” is under way, sponsored by the Italian Amateur Radio Association (ARI) Fidenza Radio Club. Each month will highlight individuals who laid the foundations — theoretical and practical — for radio science. Awards are available for participating stations.
Each month, a commemorative station with a distinctive call sign will be on the air featuring an individual — some better known than others — with a role in the history of wireless communication. During January, II4MXW is active, honoring the contributions of James Clerk Maxwell.
Commemorative stations on the air for the remainder of 2018 are:
|February||II4HRZ||Heinrich Rudolf Hertz|
|March||II4CAO||Temistocle Calzecchi Onesti Calzecchi (He demonstrated in experiments from 1884 through 1886 that iron filings contained in an insulating tube will conduct an electric current under the action of an electromagnetic wave. This discovery was the operating principle behind the early RF detector known as a “coherer,” developed several years later by Oliver Lodge, Edouard Branly, and Guglielmo Marconi.)|
|June||II4AMP||Andre Marie Ampere|
|July||II4COU||Augustin de Coulomb|
|September||II4LNZ||Heinrich Lenz (Lenz’s law states that an induced electromotive force (EMF) always gives rise to a current whose magnetic field opposes the change in original magnetic flux.)|
|October||II4OER||Hans Christian Oersted|
|November||II4HNR||Joseph Henry (He studied induced currents and made electromagnets that led to the development of the telegraph. In 1832, simultaneously with Michael Faraday, he discovered the phenomenon of self induction, demonstrating that a magnet moving within a magnetic field produced an electric current.)|
Further details and award rules are available on the ARI-Fidenza website.
This app answers the two basic questions facing radio amateurs:- Which band shall I use ? Where shall I point my beam ? It will be of interest to an... Read more
Icom are pleased to announce details of the new IC-2730E dual band mobile transceiver which will be available in early 2015. This stunning new... Read more
Ampleon has released the first of a family of RF power devices based upon its Advanced Rugged Technology (ART) derivative of the proven 9th generation... Read more