【国外标准】 American National Standard -- Methods of Measurement of Compatibility Between Wireless Communications Devices and Hearing Aids

This standard applies to both wireless communications devices (WDs) and hearing aids. It sets forth uniform methods of measurement and parametric requirements for the electromagnetic and operational compatibility of hearing aids and WDs, including cellular phones, personal communications service (PCS), and voice-over-Internet-protocol (VoIP) devices, operating in the range of 614 MHz to 6 GHz. TIA-1083, Telecommunications Communications Products Handset Magnetic Measurement Procedures and… read more Performance Requirements [B87], has become the recognized standard for measurement procedures and performance requirements for handset-generated audio band magnetic noise of wireline communications devices, including cordless telephones (cordless handsets with wireline-connected base units). Ongoing communications between the TIA TR-41.3.14 accessibility working group and ANSI C63.19 working group have been maintained with the objective of harmonizing the two standards to the maximum extent possible. This standard is intended to apply to all types of hearing aids with acoustic output, including, as examples, behind-the-ear (BTE), in-the-ear (ITE), in-the-canal (ITC), completely-in-the-canal (CIC) types, and receiver-in-the-canal (RIC). Test methods are provided for acoustic (microphone input) mode and tele-coil (T-Coil) hearing aid modes of operation. Users of this standard are cautioned to maintain the field strength called for in various places in the document within the limits for radio-frequency (RF) safety specified in IEEE Std C95.1(TM) [B65]. read less