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Spectrum Bridge's TV Band Database System

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Released: September 14, 2011


Federal Communications Commission

News Media Information 202 / 418-0500

445 12th St., S.W.


Washington, D.C. 20554

TTY: 1-888-835-5322

DA 11-1534

Released: September 14, 2011

Office of Engineering and Technology Announces the Opening of Public Testing for

Spectrum Bridge's TV Band Database System

ET Docket No. 04-186

The Commission's Office of Engineering and Technology (OET) announces that on September
19, 2011, it will commence a 45-day public trial of Spectrum Bridge Inc.'s TV band database system.
This is a limited trial that is intended principally to allow the public to access and test Spectrum Bridge's
database system to ensure that it correctly identifies channels that are available for unlicensed TV band
devices, properly registers those facilities entitled to protection, and provides protection to authorized
services and registered facilities as specified in the rules. We encourage all interested parties to test the
database and provide appropriate feedback to Spectrum Bridge.
The Commission's Part 15 rules (47 C.F.R. 15.701 et seq.) require that unlicensed TV band
devices contact an authorized database system to obtain a list of channels that are available for their
operation (i.e., channels not occupied by authorized radio services) at their individual locations and must
operate only on those channels. Such devices are required to provide their geographic location, by means
of a secure Internet connection, to a TV band database system authorized by the Commission. The
database will then return a list of the channels available for operation by the device for its reported
As part of its authorization process for TV band database systems, the Commission stated that each
database will be subject to a public trial period of not less than 45 days to ensure that the database is
providing accurate results before it is allowed to be made available for regular public use. OET has
examined Spectrum Bridge's channel availability calculator and finds that it is ready for trial testing by
the public.

Trial Access and Details

Parties may participate in the trial by accessing Spectrum Bridge's TV band database test facility
at: This website provides a description of the trial,
instructions for participation, details on use of the database system, access to the database's various
capabilities, and a link for providing feedback to Spectrum Bridge. Note that the test facility will not be
active before the date the trial is scheduled to commence.

During this trial, participants are encouraged to test

the channel availability calculator;

the cable headend and broadcast auxiliary temporary receive site registration utilities; and

the wireless microphone registration utility
to ensure that each of these elements of the database system is working properly and providing the
interference protection required under our rules.
In addition, participants are encouraged to report any inaccuracies or other issues with any aspect
of the database system to Spectrum Bridge through the response facility on the trial's website. Spectrum
Bridge will respond, as appropriate, to such reports with an explanation and notification of any responsive
actions it may take, as appropriate. During the trial, Spectrum Bridge may apply any corrective measures
it determines are needed and will advise participants of such measures through the trial's website.
As indicated above, the trial of the Spectrum Bridge database system is currently scheduled to last
for 45 days and will end on November 2, 2011. However, if the results of the trial indicate that additional
testing is necessary, OET may extend the trial period.
After the close of the trial, Spectrum Bridge will provide a summary report to OET that identifies:
(1) problems reported and their disposition; and (2) descriptions of changes made to the channel
availability calculator or registration systems. Once Spectrum Bridge submits its report, we will provide
a short period of time for interested parties to submit comments on the report. Note that 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 band database systems are set forth in 47
C.F.R. 15.701 et seq. and OET's January 26, 2011 Order on TV band database administrators (see Order
in ET Docket No. 04-186, DA 11-131). OET would grant final approval for Spectrum Bridge to operate
its database system with certified TV band 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
The FCC rules require that TV band database systems protect the following radio services: (1)
broadcast television stations (including full power, TV translator, low power TV, and Class A stations);
(2) fixed broadcast auxiliary service links; (3) receive sites (and received channels) of TV translator, low
power TV and Class A TV stations and multichannel video programming distributors (MVPDs); (4)
private land mobile radio service and commercial mobile radio service operations; (5) offshore radio
telephone service operations; (6) radio astronomy operations at specific sites; and (7) low power auxiliary
service operations (principally licensed and certain approved unlicensed wireless microphone venue
sites). Except for MVPD receive sites, sites where licensed wireless microphones are used, and approved
unlicensed wireless microphone venues, the necessary protection data will either be extracted by
Spectrum Bridge from the Commission's databases or are specified in the rules. Operators of facilities
for which information is contained in the Commission's records or provided in the rules do not need to
take any action to obtain protection from TV band devices.

Operators of MVPD receive sites and wireless microphones users must specifically register their
sites to receive protection from TV band devices. As required under the rules, Spectrum Bridge is
providing a registration capability for these facilities. These registration capabilities are available through
the database test facility at: The rules also provide
that responsible parties may request that the Commission approve registrations for protection of venues
where large numbers of unlicensed wireless microphones are used. Such requests for registration will
first be made available for public comment, and the Commission will subsequently review them for
approval. However, the Commission has not yet completed the development of its process for acceptance
and approval of registrations for these venues. In the interim and for purposes of this trial, Spectrum
Bridge, with OET's approval, has implemented a test registration capability for registration of venues
where unlicensed wireless microphones are used; this test registration capability is also available through
Spectrum Bridge's the database test facility.
Registrations for MVPD receive sites, sites where licensed wireless microphones are used, and
venues where large numbers of wireless microphones are used that are made during the trial period will
be deleted by Spectrum Bridge after the trial. Parties will be able to register their MVPD receive sites and
sites where licensed wireless microphones are used in the database once general operation of the database
for use by TV band devices is approved and implemented. Parties responsible for venues where large
numbers of wireless microphones are used will need to request registration approval by the Commission
once the Commission's process for that function is activated. We encourage parties responsible for
MVPD receive sites and licensed wireless microphone operations to enter trial registrations and make use
of these capabilities in their testing of Spectrum Bridge's database. OET will provide notice of, and time
for, affected parties to enter active registrations into Spectrum Bridge's database during the process for
final approval of the Spectrum Bridge database system for full operation. We also note that once one or
more additional database systems are approved and active, all registrations entered with a given database
will be communicated to the other database(s) so that registrations will not need to be entered with
multiple databases.
The TV bands database systems are the subject of a docketed proceeding,

ET Docket No. 04-

186, and responses to the trial of Spectrum Bridge's database system conducted pursuant to this public
notice may be filed with the Commission at any time using the FCC's Electronic Comment Filing System
(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
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 on the trial of Spectrum Bridge's database
system at any time during and after the trial period. Comments may be filed using the Commission's
Electronic Comment Filing System (ECFS). See Electronic Filing of Documents in Rulemaking
, 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. Van Tuyl, 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) 418-2470 or
Hugh L. Van Tuyl at (202) 418-7506.
By the Chief, Office of Engineering and Technology.

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