FM Systems

What are FM Systems?

An FM system is one that uses Frequency Modulation to transmit sound.  It is a wireless transmission of a radio signal from a transmitter to a receiver.

Why Use an FM System?

Less expensive than a Hearing Loop (initially) – Hearing Loops take more labor and equipment to install a proper system initially.

Easy to install – An FM system is easily installed by connecting a transmitter to an audio output.

Disadvantages of an FM System?

There are some issues with using an FM system.

Signal loss – FM’s suffer from loss of signal and privacy issues as the signal can travel significant distances and through walls.

Headset required – there is no option to directly send a FM signal from a transmitter directly to a hearing aid or cochlear implant. A different frequency is used at each venue requiring the syncing of a receiver to a venues transmitter. Due to the use of a headset it is obvious that a person is having trouble and many people are uncomfortable putting their hearing disability out there for everyone to know. Most people would prefer to not use the system at all.

How do you know if a FM System is installed?

FM systems are used throughout the world and there is an internationally recognizable symbol that is used to indicate to the general public that a FM system is installed. The color may vary, occasionally found in green, blue, red, and yellow, but always the basic ear shape usually with something going through it like an arrow, sound wave, and etc. is used.

Listen Technology FM LS-53

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