Spectrum Bridge Is First of 10 To Test White Space Database
WASHINGTON: Spectrum Bridge is on a
roll. The company has won approval from the Federal Communications Commission
to test its TV white spaces database. The news came a day after the Lake Mary,
Fla., company scored $8.8 million in second-round funding.
The FCC gave Spectrum Bridge the go-ahead for a 45-day trial beginning Sept.
19. Its database will be used by unlicensed devices designed to operate in the
TV bands. The devices, which are not yet commercially available, will have to
ping the database to find empty frequencies. These frequencies were
traditionally left unoccupied to prevent interference among analog TV signals.
Digital signals are considered less vulnerable, thus the FCC is opening those unoccupied
channels for personal devices.
The commission notes that its rules “require that unlicensed TV band devices
contact an authorized database system to obtain a list of channels that are
available for their operation…. 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
The purpose of the trial is to see if Spectrum Bridge’s technology accurately
identifies both occupied and unoccupied channels, as well as facilities
afforded protection by the FCC. Those include licensed TV stations, translators
and receive sites, fixed broadcast auxiliary service links, cable headends,
private land-mobile radio, offshore radio telephone, certain radio astronomy
and wireless microphone sites. Since Spectrum Bridge will rely on commission
data to prevent interference, all incumbent operations must be accurately
registered with the commission.
The FCC said that parties may participate in the trial by going to an
test facility set up by
Spectrum Bridge, set to become active Sept. 19. The commission encouraged
participants 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.”
Inaccuracies and errors are to be reported to Spectrum Bridge on the trial
website. The trial will conclude Nov. 2 unless the FCC’s Office of Engineering
and Technology decides to extend it. Once the trial is complete, Spectrum
Bridge will compile a report for the FCC
Spectrum Bridge was one of nine companies conditionally approved by the FCC in
January to provide white-space database management services, and the first to
have its technology go to trial. A tenth—Microsoft—applied late and won
approval in July. The other eight include Mountain View, Calif search giant Google,
Comsearch of Ashburn, Va.; Neustar of Sterling Va.; Key Bridge Global of
McLean, Va.; KB Enterprises of Washington, D.C.; Frequency Finder of Toccoa,
Ga.; Telecordia Technologies of Piscataway, N.J. and WSdB LLC, which listed no
headquarters. The company’s listed website also appears inoperable.
The FCC first put out its call for database managers in November 2009. It
revealed the nine applicants a year later and granted them conditional approval
this past January because final rules were issued after the proposals were
The designees are expected to file supplemental information on their original
proposals, but the FCC said each had sufficient “technical expertise” for the
task, as well as viable five-year business plans. The companies will be allowed
to charge fees for “fixed TVBDs and temporary broadcast auxiliary fixed links.
Spectrum Bridge, founded in 2007, came to the table with white-space
experience. The company participated in the creation of a white-space broadband
network launched in Claudville, Va., in late 2009. It has since been involved
in white-space network launches in Wilmington, N.C., Plumas County, Calif.,
Logan, Ohio and Lake Mary. It also offers a couple online spectrum database
platforms--SpecEx enables a search of existing licensees; Show My White Space generates a list of empty TV channels in
a designated area.
Previous investors True Ventures of Palo Alto, Calif., whose partners
include Om Malik, founder of tech news site GigaOm; Telecommunications
Development Fund of
Chevy Chase, Md., and Espírito Santo Ventures of Lisbon, Portugal, provided the recent $8.8 million round
to help Spectrum Bridge commercialize its software, the company said. Milcom
Venture Partners of Winter
Park, Fla., is also an investor.
Along with the funding round yesterday, Spectrum Bridge also announced the
appointment of Rod Dir as president and CEO. Dir previously was chief operating
officer of Firethorn LLC, a mobile commerce company acquired by Qualcomm. He
was also a COO of Cincinnati Bell and Powertel.
~ Deborah D. McAdams, Television Broadcast
See also . . .
September 27, 2010: “Special Report: FCC
White Space Rules”
The FCC’s latest ruling on unlicensed devices operating in the TV spectrum
modifies the original 2008 order in four areas. . .
Part II: “Geo-location Databases Become Primary Means of
Geo-locational TVBDs will
have the means to communicate their latitude and longitude to designated
databases tracking open and occupied TV channels.
Part III: “Nine Vie to Manage White Space Database”
The devices will have to
reference the databases to locate open and occupied spectrum.
Part IV: “Wireless Mics Afforded Two Exclusive Channels”
The biggest change to
the 2008 rules in last Thursday’s FCC order is the reservation of two channels
between 14 and 51 for their exclusive use. Those two channels will accommodate
at least 16 wireless mics operating at 220 kHz. Wireless mics will also still
be allowed to share TV channels, or in some cases, register in the TVDB
Part V: “Commissioners React to Final Rulemaking
FCC Chairman Julius
Genachowski called Thursday’s white space order “another implementation of an
important recommendation of the National Broadband Plan.”
September 15, 2010: “Ohio Hospital Launches
White Space Broadband Trial”
The Hocking Valley Community Hospital in this Midwestern town has deployed
a medical white-space broadband network. The hospital was aided by Google and
Spectrum Bridge on the project.
June 23, 2010: “Google Supports White
Space Smart Grid Trial”
Google is backing the test of a wireless smart-grid power system that uses
TV white spaces.
October 22, 2009 :
Town Exemplifies White Space Usage”
The community of Claudville, Va., is quintessentially “unserved,” an archetype
for using TV spectrum for wireless broadband.