Kirkland Signature KS 9.0 Demo, Руководство пользователя, Страница: 73 / 84

73
19. Important information: Cellphones
Some hearing aid users have reported a buzzing sound in their
hearing aids when they are using cellphones. According to the ANSI
63.19 (American National Standard Methods of Measurement of
Compatibility between Wireless Communications Devices and
Hearing Instruments) standard, the compatibility of a particular
hearing aid and cellphone can be predicted by adding the rating for
the hearing aid immunity to the rating for the cellphone emissions.
The sum of the hearing aid rating (e.g., M2/T2=2) and the telephone
rating (e.g., M3/T3=3) is 5, and any combination that equals 5 will
provide “normal use”; a sum of 6 or greater would indicate “excellent
performance.” The equipment performance measurements,