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                    CERTIFIED MAIL-RETURN RECEIPT REQUESTED

   December 10, 2012

   (Name withheld)

   (Address withheld)

   (Address withheld)

   Re: EB-FIELDNER-12-00004937

   Radio frequency interference

   Dear Mr.  (name withheld):

   The Federal Communications Commission has received a complaint of harmful
   radio interference that is apparently caused by an unknown electronic
   device being operated at (address withheld). This interference has been
   reported by a licensed operator in the Amateur Radio Service. The
   complainant is:

   (Name withheld)

   (Address withheld)

   (Address withheld)

   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 FCC rules, such equipment is classified as an
   "intentional radiator." These devices intentionally generate
   radio-frequency energy and but do intentionally radiate the energy as part
   of their normal intended operation. Under RFF rules, however, such devices
   must not cause harmful interference. 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 same.

   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 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 FCC 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 15.15 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)).

   Harmful interference to a licensed radio service from a Part 15 device is
   a violation of FCC Rules. Specifically, the manufacturer is responsible
   for device certification. The device owner however is responsible for
   operating the device in such a manner that it does not cause interference.
   Manufacturers will often bear some of this responsibility as a courtesy to
   their customers. The manufacturer or retail seller of the device may be
   willing to allow you to return the device and exchange it for one that
   will not cause interference.

   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 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 be advised that continued operation of the device is not legal
   under FCC rules if it is causing harmful interference. The interference
   must be corrected before its operation may continue. You have 30 days from
   the date of this letter to resolve the interference to Mr. (name withheld)
   amateur station and report back to this office. Please direct your
   response to the following address: 1270 Fairfield Road, Gettysburg,
   Pennsylvania 17325.

   If you have any questions about this matter, please contact me 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