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Fenestration Testing Laboratory, Inc., Medley, FL

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Released: December 11, 2009

FEDERAL COMMUNICATIONS COMMISSION

ENFORCEMENT BUREAU

SOUTH CENTRAL REGION

Miami Office

P.O. Box 520617
Miami, FL 33152

December 11, 2009
Fenestration Testing Laboratory, Inc.
Medley, FL

NOTICE OF UNAUTHORIZED OPERATION AND

INTERFERENCE TO LICENSED RADIO STATIONS

Case Number: EB-09-MA-0212
Document Number: W201032600019
On December 10, 2009, in response to a complaint of interference from U.S. Cellular, agents from the
Commission’s Miami Office of the Enforcement Bureau confirmed by direction finding techniques that
radio signals on the 824-849 and 869-894 MHz frequency bands, as well as other licensed frequency
bands, were emanating from your business located at 8148 N.W. 74th Ave., Medley, FL. U.S. Cellular has
a license to provide cellular communications in the 824-849 and 869-894 MHz frequency bands. During
an inspection, your operations manager admitted that a “cell phone jamming device” had been in operation
and stated he would power down the unit immediately. After the unit was powered down, the interfering
signals ceased.
Persons operating or using radio transmitters must be licensed or authorized by the Commission, pursuant
to Section 301 of the Communications Act of 1934, as amended (“Act”).1 In addition, radio transmitting
equipment must comply with the Commission’s Rules (“Rules”).2 Section 333 of the Act prohibits willful
or malicious interference with any radio communications of any station licensed or authorized by or under
the Act or operated by the United States Government.3 In addition, Section 302(b) of the Act, and Section
2.803(a) of the Rules prohibit the manufacture, importation, marketing, sale or operation of devices
deliberately designed to jam or disrupt wireless communications.4 The Commission has issued two Public
Notices specifically stating that the sale and use of transmitters designed to prevent, jam or interfere with


1 47 U.S.C. § 301. The only exception to this licensing requirement is for certain transmitters using or operating at a
power level that complies with the standards established in Part 15 of the Commission's rules. 47 C.F.R. §§ 15.1 et
seq.

2 47 C.F.R. Part 2, Subpart J.
3 47 U.S.C. § 333.
4 47 U.S.C. § 302a(b); 47 C.F.R. § 2.803(a).

the operation of cellular and personal communications service (“PCS”) telephones is unlawful.5 Section
303(n) of the Act also authorizes agents of the Commission to inspect all radio installations to determine
compliance with Commission rules.6
The operation of the devices utilized by you constitutes a violation of Sections 333, 302(b), and 301 of the
Act, as described above.7 Such operation may subject you to substantial monetary forfeitures, in rem arrest
action against the offending radio equipment, and criminal sanctions including imprisonment.8 Because
unauthorized operation creates a danger of interference to important radio communications services, and
may subject the operator to severe penalties, this notice emphasizes the importance of complying strictly
with these legal requirements.

OPERATION OF THIS PROHIBITED RADIO TRANSMITTING DEVICE

MUST NOT RESUME.

You may respond with any information you believe relevant to this warning within (10) days from the date
of this warning. Your response should be sent to the address in the letterhead and reference the listed case
number. Under the Privacy Act of 1974, we are informing you that the Commission’s staff will use all
relevant material information before it to determine what, if any, enforcement action is required to ensure
your compliance with FCC Rules.9 This will include any information that you disclose in your reply.
Sincerely,
Michael Mattern
Resident Agent
Miami Office
South Central Region
Attachments:
Excerpts from the Communications Act of 1934, As Amended
Enforcement Bureau, "Inspection Fact Sheet", March 2005


5 See Office of Engineering and Technology and Compliance and Information Bureau Warn Against the
Manufacture, Importation, Marketing or Operation of Transmitters Designed to Prevent or Otherwise Interfere with
Cellular Radio Communications
. DA 99-2150, released October 12, 1999; Sale or Use of Transmitters Designed to
Prevent, Jam or Interfere with Cell Phone Communications is Prohibited in the United States
. DA 05-1776,
released June 27, 2005.
6 47 U.S.C. § 303(n).
7 47 U.S.C. §§ 301, 302a(b), 333.
8 See 47 U.S.C. §§ 401, 501, 503, 510.
9 5 U.S.C. § 552a(e)(3).

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