still under construction ...

The hearing aid telecoil is the invisible link between the hearing aid and the audio loop system.  Like any system that looks like it works by magic, proper setup is essential.  So, what's needed?

1.  The telecoil should be oriented in the vertical direction.
2.  The hearing aid wearer must be able to turn on the telecoil manually.
3.  The telecoil performance should be measured via an HFA-SPLIV test such that a 31.6mA/m input to the telecoil provides the same output as the microphone provides with a 60dB SPL input.

A more detailed description of the setup procedure can be found at http://www.audiologyonline.com/articles/article_detail.asp?article_id=2388 - especially points 11 - 15.