On 8/27/2014 7:58 AM, Jim Hulbert wrote:
A sidebar here. FCC Rules also exempt "A digital device utilized exclusively in an
appliance, e.g., microwave oven, dishwasher, clothes dryer, air conditioner (central or
window), etc.". These devices not only can be operated but are expected to be
operated in residential areas.
Rules don't always make sense.
Jim Hulbert
More accurately and completely,
/§ 15.103 Exempted devices.//
//The following devices are subject only to the general conditions of
operation in §§ 15.5 and 15.29 and are exempt from the specific
technical standards //and other requirements contained in this part. The
operator of the exempted device shall be required to stop operating the
device upon a finding by the //Commission or its representative that ... //
§ 15.5 General conditions of operation.
(b) Operation of an intentional, unintentional, or incidental radiator
is subject to the conditions that no harmful interference is caused and
that interference must be accepted...
/
/§ 15.21 Information to user.//
//... caution the user that changes or modifications not expressly
approved by the party responsible for compliance could void the user's
authority to operate the equipment./
"The Commission or its representative" may sometimes be less than easy
to get to make the finding, however.
http://www.arrl.org/arrlletter%3Fissue%3D2006-04-07
FWIW department: telco's exempt so long as equipment was inside central
offices or on telephone company property found themselves having to
scramble some years ago, when they moved it into residential-area
cabinets and pedestals, or onto poles and messenger-wires. They did
learn, eventually. I don't have a T-shirt, exactly, but I remember
having to convince my then-employer that our gear had to meet FCC Class
B even if WAS outside a dwelling. Lawyering loses to physics!
Cortland
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