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258 Appendix
• Consult the dealer or an experienced radio or television technician for help.
Modifications
The FCC requires the user to be notified that any changes or modifications made to
the device that are not expressly approved by HTC Corporation may void the user’s
authority to operate the equipment.
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 labeled. M4
is the better/higher of the two ratings. RHOD300 is rated M3.