Large Area Infrared Infrared broadcasting systems can cover large areas. Infrared is secure, so it is the technology of choice for courtrooms or other areas where confidentiality is important. The signals from room inductive loop systems or radio frequency broadcast systems can be received outside the room whereas the infrared carrier is blocked by walls.
Because the installed profile is quite low, infrared is suitable for installations where running a loop antenna cable is impractical or not visually appropriate.
Infrared systems transmit an infrared primary carrier which is modulated by a sub-carrier frequency which is then, in turn, modulated by audio.
The use of different sub-carrier frequencies allows multiple channel transmission in the same area without interference.
M400 IR Emitter/Modulator for areas up to 400 sq.m.
M400 IR Emitter/Modulator rear view
M110 IR Emitter/Modulator for areas up to 120 sq.m.
M110 IR Emitter/Modulator rear view
PR-200 Master Emitter/Modulator for areas up to: Master only - 186 sq.m.
PR-200 Master and PR-201 Slave Emitter/Modulator for areas up to: Master + 1 Slave - 372 sq.m.
PR-200 Master and PR-201 Slave Emitter/Modulators for areas up to: Master + 2 Slaves - 560 sq.m.
An Infrared Receiver is required to receive the broadcast and deliver the audio to the user. This may be directly (acoustically) by using headphones or earbuds, or by using a neckloop or silhouette coupler(s) when using a hearing aid or implant with a telecoil function. The transmission range of a personal neckloop or silhouette coupler is very limited, so the transmission is still secure from eavesdropping outside the room.
We also supply smaller versions of Infrared systems that are commonly used for the TV.