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                       FEDERAL COMMUNICATIONS COMMISSION
                              ENFORCEMENT BUREAU
                                   Region 2

                                 Miami Office
                                P.O. Box 266468
                               Weston, FL 33326

                                 July 13, 2016


Wide Cloud Communications
Hialeah, Florida

                    NOTIFICATION OF HARMFUL INTERFERENCE

	Case Number:  EB-FIELDSCR-16-00021831
	Document Number: W201632600019


The Miami Office, in response to a complaint from the Federal Aviation
Administration (FAA) that its Terminal Doppler Weather Radar (TDWR)
serving the Fort Lauderdale-Hollywood International Airport (FLL) was
experiencing harmful interference from radio emissions on or adjacent to
the TDWR frequency of 5645 MHz, conducted an investigation in the area.
On July 6, 2016, an agent from this office confirmed by direction finding
techniques that radio emissions on the frequency band 5655 - 5675 MHz were
emanating from one of your wireless transmitters located on the roof of
1840 W. 49[th] St, Hialeah, FL 33012.  Wide Cloud Communications personnel
confirmed that it was operating a Ubiquiti Rocket M5 Unlicensed National
Information Infrastructure (U-NII) device on the frequency band 5655  -
5675 MHz, and agreed to change the operating frequency when notified of
the interference.  The interference to the TDWR then ceased.

Nonlicensed operation of a U-NII device is subject to the condition
that it must not cause harmful interference and, if harmful interference
occurs, operation of the device must cease.  See 47 C.F.R. §§ 15.5(c),
15.405.   Harmful interference is defined as "[a]ny emission, radiation
or induction that endangers the functioning of a radio navigation service
or of other safety services or seriously degrades, obstructs or repeatedly
interrupts a radio communications service."  47 C.F.R. § 15.3(m).

Your operation of a U-NII device on 5655  -  5675 MHz caused harmful
interference to the TDWR serving Fort Lauderdale-Hollywood International
Airport and your operation of this device on these frequencies
must not resume.  You are also warned that operation of otherwise
authorized equipment that continues to cause harmful interference after
your receipt of this warning, constitutes a violation of Federal law
and could subject the operator to severe penalties, including, but not
limited to, substantial monetary fines, in rem arrest action against the
offending radio equipment, and criminal sanctions including imprisonment.
(see 47 U.S.C. §§ 301, 401, 501, 503 and 510).

NONLICENSED OPERATION OF U-NII DEVICES, AT ANY SITE, THAT CAUSE
INTERFERENCE TO ANY TDWR OR OTHER LICENSED RADIO COMMUNCIATIONS SERVICE
MUST NOT RESUME.  NONLICENSED OPERATION OF U-NII DEVICES MAY NOT RESUME
UNLESS YOU ARE IN FULL COMPLIANCE WITH PART 15 OF THE FCC'S RULES.

You have ten (10) days from the date of this notice to respond with any
evidence that your transmitters were not the source of the interference
to the FLL TDWR.  Your response should also describe the steps you
are taking to ensure that none of your U-NII devices interfere with
the TDWRs serving the Fort Lauderdale-Hollywood and Miami International
Airports.  Your response should be sent to the address in the letterhead
and reference the listed case number and document number.  Under the
Privacy Act of 1974, 5 U.S.C. § 552a(e)(3), 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.  This will include any information that
you disclose in your reply.

You may contact this office if you have any questions.



Ronald Ramage
Regional Director




Attachments:

      Excerpts from the Communications Act of 1934, As Amended
	Enforcement Bureau, "Inspection Fact Sheet," March 2005
      Joint OET and EB Memo dated July 27, 2010 regarding interference
      to Terminal Doppler Weather Radars
      FCC Enforcement Advisory, "TDWR and U-NII Devices" dated September
      27, 2012, DA 12-459