FEDERAL COMMUNICATIONS COMMISSION
ENFORCEMENT BUREAU
South Central Region
Houston Office
9597 Jones Road, #362
Houston, TX 77065
August 13, 2010
Via Certified Mail: 7009 3410 0000 1986 8732
NSN Wireless LP
Houston, Texas
NOTICE OF UNLICENSED OPERATION
Case Number:  EB-10-HU-0050
Document Number:  W201032540006
On June 17, 2010, while investigating interference to the Federal Aviation Administration 
(“FAA”) Terminal Doppler Weather Radar that serves the George Bush Intercontinental Airport, 
agents from the Houston Office met with several companies with radio transmitting equipment 
located on the rooftop of the San Felipe Plaza at 5847 San Felipe Road in Houston, TX, the 
source of the interfering signals.  During an inspection of your Unlicensed National Information 
Infrastructure (“U-NII) equipment, the agents, accompanied by a NSN radio technician, observed 
that the dynamic frequency selection (“DFS”) functionality of your equipment was disabled 
while operating on the frequencies 5.530 GHz and 5.540 GHz.  The DFS functionality was 
enabled by one of your technicians during the FCC’s inspection.
Radio stations must be licensed by the Federal Communications Commission (“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, 47 C.F.R. §§ 15.1 et seq.  
Nonlicensed operation pursuant to Part 15 of the FCC’s rules, however, is conditioned upon 
compliance with all applicable regulations in the subpart, 47 C.F.R. § 15.1(b).  U-NII devices are 
required to have DFS functionality enabled for any operation in the 5.25 GHz – 5.35 GHz and 
the 5.47 GHz – 5.725 GHz bands.  See 47 C.F.R. § 15.407(h)(2).   Accordingly, your operation 
on the frequencies 5.530 GHz and 5.540 GHz was not in compliance with the requirements of 
Part 15 of the FCC’s rules and should therefore be licensed by the FCC.  The FCC has no record 
of a license being issued to you to operate a transmitter on 5.530 GHz or 5.540 GHz from this 
location.  Thus, your operation was in violation of 47 U.S.C. § 301.
You are hereby warned that operation of radio transmitting equipment without a valid radio 
station authorization 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 OF A U-NII DEVICE ON 5.530 GHz OR 5.540 GHz MUST NOT 
RESUME.  NONLICENSED OPERATION OF A PART 15 DEVICE 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 concerning your operation of 
these Part 15 devices.  Please provide the makes and models of the U-NII devices in use by you 
on the rooftop of the San Felipe Plaza building rooftop on June 17, 2010.  Your response should 
also describe the steps you are taking to ensure that your operation does not interfere with the 
TDWR that serves the George Bush Intercontinental Airport, as well as any TDWR serving any 
other airport. Your response should be sent to the address in the letterhead and reference the 
listed case and document number. Under the Privacy Act of 1974, 5 U.S.C. § 552a(e)(3), we are 
informing you that the FCC'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.
Be advised that this warning does not preclude this office from pursuing additional sanctions 
based upon our investigation of this incident.
You may contact this office if you have any questions.
Stephen P. Lee
Resident Agent
Houston Office
Attachments:
Excerpts from the Communications Act of 1934, As Amended