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                       FEDERAL COMMUNICATIONS COMMISSION
                              ENFORCEMENT BUREAU
                                   Region 2

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

                                 June 13, 2016

Aptech Networks Corp.
Doral, Florida

                      NOTICE OF UNLICENSED OPERATION AND
                     NOTIFICATION OF HARMFUL INTERFERENCE

					  Case Number:
					  EB-FIELDSCR-16-00021849
	Document Number:  W201632600014


The Miami Office, in response to information received from the Federal
Aviation Administration (FAA) that the Terminal Doppler Weather Radar
(TDWR) serving the Miami International Airport was receiving interference
on or adjacent to 5.605 GHz, conducted an investigation in the area. On
June 3, 2016, agents from this office confirmed by direction finding
techniques and through an inspection that radio emissions on frequency
5.605 GHz were emanating from the tower at 8180 NW 36[th] St. Doral,
Florida.  Your system was using a Ubiquiti Networks NanoBeam NBE-M5-400
Unlicensed National Information Infrastructure ("U-NII") device. One
of these devices was programmed to operate on 5.605 GHz. You changed
the operating frequency of the system and the interference to the FAA
radar ceased.

Radio stations operating on many frequencies must be authorized by the
FCC pursuant to 47 U.S.C. § 301.  The only exception to this licensing
requirement is for certain transmitters using or operating at a power
level or mode of operation that complies with the standards established
in Part 15 of the Commission's rules.  Non-licensed operation pursuant to
Part 15 of the Commission's rules, however, is conditioned upon compliance
with all applicable regulations in the subpart, 47 C.F.R. § 15.1(b).
All intentional radiators operating pursuant to Part 15 of the FCC's rules
must be certified for use as a Part 15 device, 47 C.F.R. § 15.201(b)
and failure to operate such device consistent with its authorization
violates Part 15 of the Commission's rules.

You operated Ubiquiti NanoBeam NBE-M5-400 devices on the frequency
5.605 GHz.  The Ubiquiti NBE-M5-400 with FCC ID SWX-NBEM5 is not
authorized for use in the 5.45 GHz through 5.725 GHz frequency band.
The FCC has no record of a license being issued to you to operate a
transmitter on 5605 MHz from 8180 NW 36[th] St. Doral, Florida.  Thus,
your operation was in violation of 47 U.S.C. § 301.

Non-licensed operation of a U-NII device is also 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).

You are notified that your Ubiquiti device operating on 5.605 GHz was
causing harmful interference to the TDWR at the Miami International
Airport and that your operation of this device must not resume until
the interference can be resolved.  You are also warned that operation of
radio transmitting equipment without a valid radio station authorization,
including non-certified equipment or modified equipment which voids
the certification, and/or operation of otherwise authorized equipment
that continues to cause harmful interference after your receipt of
this warning, constitutes a violation of the Federal laws cited above
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. §§ 401, 501, 503 and 510.)

UNLICENSED OPERATION ON FREQUENCY 5.605 GHZ MUST NOT RESUME.  NONLICENSED
OPERATION OF A U-NII DEVICE MAY NOT RESUME UNLESS YOU ARE IN FULL
COMPLIANCE WITH PART 15 OF THE FCC'S RULES AND UNTIL YOU RESOLVE THE
HARMFUL INTERFERENCE.

You have ten (10) days from the date of this notice to respond with any
evidence that your transmitter is not the source of the interference
to the TDWR.  Your response should describe the steps you are planning
to take to eliminate future interference to the TDWR of the Miami
International Airport.	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