IR Systems

Audio transmission using infrared (an electromagnetic wave with a wavelength fa between visible light and radio waves) is often used in simultaneous interpretation and assistive listening systems. The main difference from radio transmission is that a signal transmitted in this way can only be received if the transmitter and receiver can 'see' each other (even if it is visibility through reflection from the surface of a wall). This is an important advantage - because systems installed in adjacent rooms do not interfere with each other.

For the user, the operation of an IR system is no different to FM - they have a receiver and headphones (or an induction loop) connected to it, choose the audio channel they want to listen to and use the system - the receiver should not be hidden in a pocket or under a table to receive the signal. Bodypack receivers and a set of accessories are available - chargers, cases, lanyards, headphones and induction loops.

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IR Systems
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Single Bay Infrared Receiver / Hearing Loop Listener Charger

Catalogue index: Contacta000288

PLN714.00 net PLN878.22 gross incl. 23% VAT / szt.


Inductive Loop

Catalogue index: Contacta000156

14 days
PLN248.00 net PLN305.04 gross incl. 23% VAT / szt.



Catalogue index: Contacta000154

14 days
PLN106.00 net PLN130.38 gross incl. 23% VAT / szt.


5 Bay Charging Station

Catalogue index: Contacta000152

14 days
PLN2,320.00 net PLN2,853.60 gross incl. 23% VAT / szt.


Large Area Infrared Transmitter with Modulator

Catalogue index: Contacta000151

14 days
PLN11,140.00 net PLN13,702.20 gross incl. 23% VAT / szt.


Medium Area Infrared Transmitter with Modulator

Catalogue index: Contacta000150

14 days
PLN4,032.00 net PLN4,959.36 gross incl. 23% VAT / szt.


Portable Infrared Receiver

Catalogue index: Contacta000148

14 days
PLN1,782.00 net PLN2,191.86 gross incl. 23% VAT / szt.