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CERTIFIED MAIL-RETURN RECEIPT REQUESTED
March 7, 2011
(Name withheld)
(Address withheld)
(Address withheld)
Re: EB-11-GB-0017
Dear Mr. (Name Withheld):
The Federal Communications Commission has received complaints that a
pellet stove currently being used at your residence may be causing harmful
radio interference to an operator in the Amateur Radio Service. The
complainant is:
(Name withheld)
(Address withheld)
(Address withheld)
The Federal Communications Commission has the responsibility to require
that such problems be rectified within a reasonable time if the
interference is caused by faulty consumer equipment. Under Commission
rules, certain types of equipment are classified as "unintentional
radiators." These devices generate radio frequency energy but do not
intentionally radiate it. Examples include computers, radio receivers and
television sets. Other types of consumer devices are classified as
"incidental radiators." These devices do not intentionally generate any
radio-frequency energy but may create it as an incidental part of its
intended operation. Common examples are aquarium heaters, certain portable
telephones, alarm control panels, fluorescent light ballasts, doorbell
control circuits and so forth. Some of those devices are imported and do
not comply with Commission certification standards, and thereby result in
interference to other radio services. If the device is an approved one, it
should have a silver FCC label on the unit showing a certification number.
Even an approved device, however, can only be operated legally if it is
not causing harmful interference to a licensed radio service. The device
can also be defective resulting in a shock or fire hazard.
To help you better understand your responsibilities under Commission
rules, here are the most important rules relating to radio and television
interference from incidental radiators:
Title 47, CFR Section 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 that may be caused by the operation of an
authorized radio station, by another intentional or unintentional
radiator, by industrial, scientific and medical (ISM) equipment, or by an
incidental radiator.
(c) The operator of the radio frequency device shall be required to cease
operating the device upon notification by a Commission representative that
the device is causing harmful interference. Operation shall not resume
until the condition causing the harmful interference has been corrected.
Title 47, CFR Section 15.13 Incidental radiators.
Manufacturers of these devices shall employ good engineering practices to
minimize the risk of harmful interference.
Title 47, CFR Section 15.15 General technical requirements.
(c) Parties responsible for equipment compliance should note that the
limits specified in this part will not prevent harmful interference under
all circumstances. Since the operators of Part 15 devices are required to
cease operation should harmful interference occur to authorized users of
the radio frequency spectrum, the parties responsible for equipment
compliance are encouraged to employ the minimum field strength necessary
for communications, to provide greater attenuation of unwanted emissions
than required by these regulations, and to advise the user as to how to
resolve harmful interference problems (for example, see Sec. 15.105(b)).
The complainant has attempted unsuccessfully to resolve this problem and
as a result the matter has been referred to our office. The Commission
prefers that those responsible for the proper operation of equipment
assume their responsibilities fairly. This means that you should resolve
the interference caused by these devices and make necessary corrections
within a reasonable time.
While the Commission has confidence that most people are able to resolve
these issues voluntarily, the Commission wants to make you aware that this
unresolved problem may be a violation of FCC rules and could result in a
monetary forfeiture (fine) for each occurrence. At this stage, the
Commission encourages the parties to resolve this problem without
Commission intervention; but if necessary to facilitate resolution, the
Commission may investigate possible rules violations and address
appropriate remedies.
The American Radio Relay League, a national organization of Amateur Radio
operators, may be able to offer help and guidance about radio interference
that involves Amateur Radio operators.
American Radio Relay League
Radio Frequency Interference Desk
225 Main Street
Newington, CT 06111
Tel: (860) 594-0200
E-mail: rfi@arrl.org
Please advise the complainant and this office what steps you are taking to
correct this reported interference problem. The Commission expects that
most cases can be resolved within 30 days of the time they are first
reported. If you are unable to resolve this within 30 days, please advise
this office about the nature of the problem, the steps you are taking to
resolve it and the estimated time in which those steps can be
accomplished.
If you have any questions about this matter, please contact me in writing
at 1270 Fairfield Road, Gettysburg, Pennsylvania 17325 or via telephone at
717-338-2577. Thank you for your cooperation.
Sincerely,
Laura L. Smith, Esq.
Special Counsel
Enforcement Bureau
cc: Seattle Field Office
Western Regional Director