Translations:Fernbedienungen/5/en

The Siemens Bildmeister with ultrasonic remote control (Source: BSH Corporate Archives, C02-0114).

In the 1970s, Siemens remote controls and televisions were fitted with new ultrasonic technology. The Siemens Bildmeister FC 386 teletronic with ultrasonic remote control, which was launched on the market in 1973, was advertised as a luxury item: Viewers could choose between eight programs “like from a command center”. Ultrasonic remote controls emit an audio signal to the TV, which is not audible to the human ear. Up to ten commands could be transmitted to the TV: on/off, volume up/down, picture darker/brighter, enhanced/reduced color, back/forward program.