Shure Adds to Call for Brakes on White Space Decision
Shure Inc., maker of wireless mics, has joined broadcasters
in a call for the FCC to allow public comment on the trove of data it released
in conjunction with Chairman Kevin Martin’s plan for white space rules.
NAB and others filed an emergency petition against the
planned Nov. 4 vote, arguing that data from the FCC Office of Engineering and
Technology doesn’t support Martin’s move to approve unlicensed white space
activity at levels broadcasters say would interfere with DTV.
In particular, Shure says the OET failed to make a case that
the future white space devices would not interfere with wireless mic use.
“Test data from microphone tests is less favorable to
sensing than the DTV data, but gets buried at the back of the report,” Shure
told the FCC in its filing in support of a fresh comment period on the data.
“It is also heavily redacted. Individual tests are not published.”
The request for more public participation comes just as a major advocate of white space devices let slip that his allies seek not to coexist with free over-the-air DTV but to destroy it. Michael Calabrese of the New America Foundation said this week that the white space industry would like to "take TV off the air" within a few years. The New America Foundation (whose board members include Google CEO Eric Schmidt), in a Friday filing with the FCC, blasted the NAB for making note of that statement and claimed it had been taken out of context. But in the four-page filing, which repeatedly attacks the NAB for its alleged hogging of bandwidth, the foundation does not deny making that statement or attempt to explain the correct context in which it was made.
Shure has offered its own plan for protecting wireless mics.
It would like “minimally sufficient protected channels” centered around Channel
37 and Channel 11, with all new white space devices managed by a geolocation
database that would reflect events, such as sports, that involve abundant mic
use. The Shure plan also calls for six protected UHF channels (reduced to four
channels after three years) and two protected VHF channels.
Those channels would provide bandwidth for smaller
operations (churches, for example) that use wireless mics but don’t have the
professional coordination and means to enter their data into the proposed
geolocation database the way a large event would.
But relying on spectrum-sensing alone—as envisioned by the
Martin proposal—would be a non-starter, said Ahren Hartman, director of
platform engineering for Shure. Imagine the Rolling Stones playing in front of
tens of thousands of people, all holding personal white space devices, Hartman
suggested. Mick and Keith would have to hope that all the devices detect mic
activity before transmitting on those channels—and the OET data, despite its
declaration of the “proof of concept,” indicates enormous work yet to be done
to make that technology reliable.
“The stuff doesn’t work, for any host of technical reasons,”
said Hartman. “The failure rates were just abysmally high. It’s unbelievable
that they can come to that conclusion [that spectrum-sensing will be adequate] when
they stood there and watched the tests.”
The Shure plan for reserved channels for wireless mics,
along with a geolocation database, would work “if and only if there is no such
thing as a spectrum-sensing-only device,” Hartman said.
He also rejected white space advocates’ claims that the
years of FCC testing and the open testing process has given incumbents all the
chance they need to comment on the data.
“Everyone was there watching the tests, but the commission’s
conclusions aren’t supported by the actual test results,” he said. “That’s why
we want to get the data processing out for public comment.”
Meanwhile, lobbying continues. Bill Gates himself spoke on
the phone Oct. 20 wioth Martin and Commissioner Michael Copps, urging them to
get the rules done by Nov. 4 so industry can get cranking on the new products.
NAB has enlisted upward of 70 members of Congress to urge
caution on the rules, inclusing several who spoke up in favor of the request to
delay the vote and allow public comment. Those included Sen. Mel Martinez,
R-Fla., and Reps. Carolyn Maloney, D-N.Y.,
Shelley Berkley, D-Nev, Mark Steven Kirk, R-Ill, Bobby Rush, D-Ill., Jon Porter,
R-Nev, Jerrold Nadler, D-N.Y., William Lacy Clay, D-Mo., Jim Cooper, D-Tenn and
Robert Brady, D-Pa.
On Friday, 46 state
broadcasters associations added their support to the broadcasters’ position.