Infrared interpreter system
This plant consists of the basic elements of a Infrared system, namely a transmitter unit and a receiver unit.
The transmitter unit consists of a multi-channel transmitter which can transmit on different channels with different frequencies (from 95 kHz to 250 kHz). The transmitter has several inputs to which, for example, the different languages (one language per channel) can be applied. The individual languages usually come from a control unit to which the interpreter consoles with microphones and headphones are connected in the corresponding Interpreting booth are connected. In the transmitter, the low-frequency input signal is now converted into an RF signal.
This signal is transmitted via BNC cable to a radiator (consisting of IR transmitting diodes). The emitter emits a frequency modulated subcarrier with amplitude modulated signal (amplitude and frequency modulation) in the range of the IR light, which is then received by a suitable Receiver unit can be implemented.
Depending on the selection of the channel (i.e. the frequency), the IR simulcast receiver converts the information of the IR light from an RF signal into an AF signal, which then reaches the ear of the subscriber by means of a headset or earphone.
