Aiphone JK-DA Manuel D'installation page 23

This equipment 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. This equipment generates, uses, and can radiate radio frequency energy, and if not installed and
used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged
to try to correct the interference by one or more of the following measures: ・ Reorient or relocate the receiving antenna ・ Connect the equipment into an outlet on a circuit different
from that to which the receiver is connected. Increase the separation between the equipment and receiver. ・ Consult the dealer or an experienced radio/TV technician for help.
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