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Public Trial of Comsearch's TV Bands Database System

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Released: June 23, 2014


Federal Communications Commission

News Media Information 202 / 418-0500


TTY: 1-888-835-5322

445 12th St., S.W.

Washington, D.C. 20554

DA 14-862

Released: June 23, 2014

Office of Engineering and Technology Requests Comment on the Public Trial

of Comsearch’s TV Bands Database System

ET Docket No. 04-186

Comments Date: July 8, 2014

Reply comments Date: July 15, 2014

The Commission’s Office of Engineering and Technology (OET) is requesting comment on the

45-day public trial of Comsearch’s TV bands database system that was completed on April 9, 2014. This

database system is designed and intended to support the operation of low power unlicensed transmitting

devices on unoccupied spectrum within the broadcast television bands (TV bands). This unoccupied

spectrum is commonly known as the TV “White Spaces.”

In a Public Notice released February 19, 2014, DA 14-210, OET announced that, beginning

February 24, 2014, it was conducting a 45-day public trial of Comsearch’s TV bands database system.

This trial allowed the public to access and participate in the testing of the Comsearch database system to

ensure that it correctly identifies channels that are available for unlicensed TV bands devices, properly

registers facilities entitled to protection, and provides protection to authorized services and registered

facilities as specified in the rules. Participants were encouraged to report any inaccuracies or other issues

with any aspect of the database system to Comsearch.

Comsearch has provided a summary report on the trial of its TV bands database system to OET.

This summary report identifies: 1) problems/concerns reported and their disposition and 2) descriptions of

changes made by Comsearch to the channel availability calculator or registration systems during the trial

period. We are requesting that interested parties submit comments on the trial and this report. A copy of

Comsearch’s summary report and its three attachments is available on the Commission’s Electronic

Comment Filing System (ECFS) at

Summary Report:

The successful performance of the database system through this trial is only one element in the

Commission’s evaluation of a system for approval to operate. Other requirements for TV bands database

systems are set forth in 47 C.F.R. 15.701 et seq. and OET’s January 26, 2011, Order on TV bands

database administrators (see Order in ET Docket No. 04-186, DA 11-131). OET will grant final approval

for Comsearch to operate its database system with certified TV bands devices once it determines that the


system complies with all of the applicable rules and requirements. The public will be informed of such

decision through a Public Notice.

The TV bands database systems are the subject of a docketed proceeding, ET Docket No. 04-

186, and comments and reply comments addressing the trial of Comsearch’s database system must be

filed in that proceeding using the FCC’s ECFS as described below. A simplified interface for ECFS has

been implemented to facilitate consumer comment. Documents filed on ECFS may be accessed and

reviewed on that system, which contains copies of written submissions and summaries of oral

submissions regarding the white spaces proceeding.

Pursuant to sections 1.415 and 1.419 of the Commission’s rules, 47 CFR §§ 1.415, 1.419,

interested parties may file comments and reply comments addressing the trial of Comsearch’s database

system and its report on the trial by July 8, 2014 and July 15, 2014, respectively. As indicated above,

comments and reply comments must be filed using the Commission’s Electronic Comment Filing System.

See Electronic Filing of Documents in Rulemaking Proceedings, 63 FR 24121 (1998).

Electronic Filers: Comments may be filed electronically using the Internet by accessing the


Paper Filers: Parties that choose to file by paper must file an original and one copy of each filing.

If more than one docket or rulemaking number appears in the caption of this proceeding, filers

must submit two additional copies for each additional docket or rulemaking number.

Filings can be sent by hand or messenger delivery, by commercial overnight courier, or by first-

class or overnight U.S. Postal Service mail. All filings must be addressed to the Commission’s

Secretary, Office of the Secretary, Federal Communications Commission.

All hand-delivered or messenger-delivered paper filings for the Commission’s Secretary

must be delivered to FCC Headquarters at 445 12th St., SW, Room TW-A325,

Washington, DC 20554. The filing hours are 8:00 a.m. to 7:00 p.m. All hand deliveries

must be held together with rubber bands or fasteners. Any envelopes and boxes must be

disposed of before entering the building.

Commercial overnight mail (other than U.S. Postal Service Express Mail and Priority

Mail) must be sent to 9300 East Hampton Drive, Capitol Heights, MD 20743.

U.S. Postal Service first-class, Express, and Priority mail must be addressed to 445 12th

Street, SW, Washington DC 20554.

People with Disabilities: To request materials in accessible formats for people with disabilities

(Braille, large print, electronic files, audio format), send an e-mail to or call the

Consumer & Governmental Affairs Bureau at 202-418-0530 (voice), 202-418-0432 (tty).

All filings must be addressed to the Commission’s Secretary, Marlene H. Dortch, Office of the

Secretary, Federal Communications Commission, 445 12th Street, SW, Washington, DC 20554. Parties

should also send a copy of their filings to Hugh L. VanTuyl, Office of Engineering and Technology,

Federal Communications Commission, Room 7-A162, 445 12th Street, SW, Washington, DC 20554, or

by e-mail to Parties must also serve one copy with the Commission’s copy

contractor, Best Copy and Printing, Inc. (BCPI), Portals II, 445 12th Street, SW, Room CY-B402,

Washington, DC 20554, (202) 488-5300, or via e-mail to



Documents in ET Docket No. 04-186 are available for public inspection and copying during

business hours at the FCC Reference Information Center, Portals II, 445 12th Street, SW, Room

CY-A257, Washington, DC 20554. The documents may also be purchased from BCPI, telephone (202)

488-5300, facsimile (202) 488-5563, TTY (202) 488-5562, e-mail

Questions regarding this Public Notice may be directed to Alan Stillwell at (202) 418-2925 or

Hugh L. Van Tuyl at (202) 418-7506.

By the Chief, Office of Engineering and Technology.



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