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   September 17, 2013

   (Name withheld)

   (Address withheld)

   Munford, TN 38058

   RE:  Radio frequency interference


   Dear (Name withheld):

   The Federal Communications Commission has received a complaint that a
   device in your residence is causing harmful radio interference to an
   operator in the Amateur Radio Service. This interference has been reported
   by a licensed operator in the Amateur Radio Service. The complainant is:

   (Name withheld)

   (Address withheld)

   Munford, TN 38058

   The 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 Part 15 of the FCC rules, certain equipment is
   classified as an "unintentional radiator." 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." This type of equipment
   does not intentionally generate any radio-frequency energy, but that may
   create such energy 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

   Please be advised that these devices must not cause harmful interference
   under FCC rules. If and when interference does occur, the burden falls on
   the device operator to correct it, and if necessary, cease operation of
   the device whenever such interference occurs. Some types of common
   consumer devices may also operate under Part 18 of the Commission's rules.
   In either case, however, the rules with regard to interference are the

   Please also be advised that some of these devices are imported and do not
   comply with Commission certification standards, and thereby result in
   interference to other radio services. You may have one of those devices.
   If an unintentional radiator 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 FCC rules, here
   are the most important rules relating to radio interference caused by
   unintentional and 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 15.15 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 FCC prefers
   that those responsible for the proper operation of equipment assume their
   responsibilities fairly. This means that you should resolve the
   interference caused by the device 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.

   Please advise both this office and (name withheld) as to 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. Please feel free to call me at 717-338-2577 if you
   have any questions about this matter.


   Laura L. Smith, Esq.

   Special Counsel

   Enforcement Bureau

   cc: Atlanta Field Office

   South Central Regional Director