Imagine the excitement radio amateurs in the Netherlands and England must have felt when they didn't hear the customary morse signals, but music through their headphones! They witnessed an event that would shape the 20th Century: the first radio broadcast in the Netherlands.
It was a historical moment and people present - including the Dutch Queen could hardly believe it - thinking there must have been a hidden wire. But independent radio amateurs in the rest of the country soon reported they also had received Idzerdas' signal from his stand located at the Lucas Bolwerk.
Historic footage from the Trade Fair at the Jaarbeurs Utrecht in 1918-1919
Idzerda is a passionate and talented engineer with a passion for radio, but he is not commercial enough. The business model for his company N.V. Netherlands Radio Industry is unrealistic. The quality of his radios and technical equipment is so high that only well to do customers can afford to buy his products. Moreover, the special FM modulation technique with which he transmits does not work well with the cheaper recipients of competitors. These are more suitable for an AM signal. His listeners express their dissatisfaction in the radio magazines Radio News and Radio Expres.
When the Daily mail ends the contract with Idzerda in 1923 and his partner Philips joins forces with his rival NSF for manufacturing lamps and receivers, all things turn sour. Idzerda closes a deal with the Netherlands Society for Radiotelegraphy and they agree to start with broadcasting on Idzerda's station PCGG from February 8 1923. But a little later on Idzerda loses his broadcasting permit due to his financial problems and his company the N.V. Netherlands Radio Industry goes bankrupt in 1924.
Production: Carlien Booij, Erik van Tuijn
Research: Pieter Bakker, Jette Pellemans, Carlien Booij, Erik van Tuijn
Art direction: Ruben Steeman, buro RuSt
Camera and video editing: Elmar Kroezen, Videofabrique
Animations: Kirsten Schuil, Ruben Steeman
With special thanks to: Tobias Idzerda, grandson of Hans Idzerda, Pieter Bakker and everyone involved at Sound and Vision
Sources of quotations:
Letter from Herman de Man to Idzerda's widow (Eindhoven, 1946);
Letter from Idzerda's eldest daughter M.C. de Brey-Schotanus à Steringa Idzerda to mr. Van Beek (Driehuis,1979);
Letter from Idzerda's eldest daughter M.C. de Brey-Schotanus à Steringa Idzerda to N.T.J. Swierstra (Haarlem, 1969);
Article in newspaper De Telegraaf, 1939-02-24.
Adv. IDEEZET: Radio Nieuws 1918
Het draadloos ontvangstation handboek voor den amateur, J. Corver, Uitgeversmaatschappij Rembrandt (1915)
Portrait J. Corver, NISV
Panorama, A.W. Sijthoff's uitgevers maatschappij (1913)
Portret Idzerda: Schimmelpenningh
Wolfgang Amadeus Mozart. Divertimento No.17 In D Major, K 334. Menuetto
Sonate en sol mineur op. 2 Haendel, comp. ; Ars Rediviva
Perfumes of the Past - Savoy Orphans