HTC Imagio User Manual download pdf (Page 142)

142 Appendix

FCC Caution: Any changes or modifications not expressly approved by the party responsible for compliance

could void the user’s authority to operate this equipment.

This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This

device may not cause harmful interference, and (2) this device must accept any interference received, including

interference that may cause undesired operation.

IMPORTANT NOTE

Radiation Exposure Statement:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. End

users must follow the specific operating instructions for satisfying RF exposure compliance. To maintain

compliance with FCC RF exposure compliance requirements, please follow operation instruction as

documented in this manual.

This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter,

except the transmitters built-in with the device.

FCC Hearing-Aid Compatibility (HAC) Regulations for Wireless Devices

On July 10, 2003, the U.S. Federal Communications Commission (FCC) Report and Order in WT Docket 01-

309 modified the exception of wireless phones under the Hearing Aid Compatibility Act of 1988 (HAC Act)

to require digital wireless phones be compatible with hearing-aids. The intent of the HAC Act is to ensure

reasonable access to telecommunications services for persons with hearing disabilities. While some wireless

phones are used near some hearing devices (hearing aids and cochlear implants), users may detect a buzzing,

humming, or whining noise. Some hearing devices are more immune than others to this interference

noise, and phones also vary in the amount of interference they generate. The wireless telephone industry

has developed a rating system for wireless phones, to assist hearing device users find phones that may be

compatible with their hearing devices. Not all phones have been rated. Phones that are rated have the rating

on their box or a label located on the box. The ratings are not guarantees. Results will vary depending on the

user’s hearing device and hearing loss. If your hearing device happens to be vulnerable to interference, you

may not be able to use a rated phone successfully. Trying out the phone with your hearing device is the best

way to evaluate it for your personal needs.

M-Ratings: Phones rated M3 or M4 meet FCC requirements and are likely to generate less interference to

hearing devices than phones that are not rated. M4 is the better/higher of the two ratings.

T-Ratings: Phones rated T3 or T4 meet FCC requirements and are likely to be more usable with a hearing aid’s

telecoil than phones that are not rated. T4 is the better/higher of the two ratings.

WHIT100 complies with the FCC’s requirements for hearing aid compatibility when using the CDMA air

interface. The M rating in this mode is M3 and the T rating in this mode is T4.

Your hearing device manufacturer or hearing health professional may help you

find this rating. Higher ratings mean that the hearing device is relatively immune

to interference noise. The hearing aid and wireless phone rating values are then

added together. A sum of 5 is considered acceptable for normal use. A sum of 6 is

considered for better use. A sum of 8 is considered for best use.

In the above example, if a hearing aid meets the M2 level rating and the wireless phone meets the M3 level

rating, the sum of the two values equal M5. This should provide the hearing aid user with “normal usage” while

using their hearing aid with the particular wireless phone. “Normal usage” in this context is defined as a signal

quality that is acceptable for normal operation.

This methodology applies equally for T ratings. The M mark is intended to be synonymous with the U mark. The

T mark is intended to be synonymous with the UT mark. The M and T marks are recommended by the Alliance

for Telecommunications Industries Solutions (ATIS). The U and UT marks are referenced in Section 20.19 of the

FCC Rules. The HAC rating and measurement procedure are described in the American National Standards

Institute (ANSI) C63.19 standard.

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