Posts tagged as Hans van de Groenendaal

In conversation with Hans van de Groenendaal, amateur radio enthusiast: A lifelong passion

  Following his International Amateur Radio Union (IARU) Diamond Award in August 2016 (see EngineerIT August 2016, page 6) , I chatted to Hans about his life-long interest in amateur radio – where it started, and where it is today. Radio amateurs in the early days were in the frontier of communication and broadcasting development, […]

Lightning protection: leave it to the experts

  by Hans van de Groenendaal, EE Publishers Lightning protection is a serious, yet often underestimated issue, which requires professional equipment, installed professionally. Dehn Protection South Africa MD Alexis Barwise shares some strong views on the subject. Barwise says it is inadvisable to apply a rule of thumb and to think you and your property […]

SA digital laser a world first

  by Hans van de Groenendaal, EE Publishers South African researchers have developed the world’s first digital laser, creating many new applications for laser technology Conventional laser devices commonly consist of mirrors, energy (light) and a casing containing a medium, for example crystal or glass. The medium changes the frequency of the light to create […]

ICASA’s response to article on E-band

Dear Editor, The article published in The Daily Maverick (and EngineerIT July 2012) by Hans van de Groedendaal refers. The author alleges that ICASA (Independent Communications Authority of South Africa) is stifling broadband by not making available the E-Band. The ICASA would like to point out that the 71 – 76 and 81 – 86 […]