Amazon KINDLE Manual page 152

STEPS TO MINIMIZE INTERFERENCE
If your Kindle does cause harmful interference to radio or television reception
(which you can determine by turning your Kindle off and on), you can try to correct
the interference by one or more of the following measures: reorient or relocate the
receiving antenna for the radio or television; increase the separation between the
radio or television and your Kindle; connect equipment and receivers to different
outlets; or consult the radio or television manufacturer or an experienced radio/TV
technician for help.
WATCH FOR SIGNS
There are some places where RF signals could constitute a hazard, such as health care
facilities, and construction sites. If you are not sure, look around for signs indicating
that two-way radios or cell phones should be turned off.
FCC COMPLIANCE STATEMENT FOR MODEL NUMBER D00511, FCC ID: WI5-1210
AND MODEL NUMBER D00701, FCC ID: W82-0725
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.
This device has been tested and found to comply with the limits for a Class B digital
device, pursuant to part 15 of the FCC rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation.
However, there is no guarantee that interference will not occur in a particular
installation.
This device meets the FCC Radio Frequency Emission Guidelines and is certified with
the FCC as the FCC ID number found on the back of the device.
KINDLE USER'S GUIDE 5 EDITION
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Appendix · 152