- on RF (radio)
- Published in issue 7/2011 on page 59
Wideband Receiver for Spark Transmissions
In the early years of radio technology spark transmissions ruled the (air) waves. They occupied a relatively wide bandwidth, in what came to be known as the long waveband. The receivers used had a corresponding bandwidth, as ‘wide open’ as the proverbial ‘barn door’. Most were simple detectors without an amplifier stage.