As folks may recall, the primary opponents of opening the broadcast white spaces for use, the broadcasters and the wireless microphone manufacturers — notably our good friend and radio pirate Shure, Inc. (official slogan:“We get to break the law ’cause we sound so good”) — insisted that the FCC conduct field tests on the white spaces prototypes. Of course, because these are concept prototypes and not functioning devices certified to some actual standard, everyone knew this would leave lots of leeway for the broadcasters and the wireless microphone folks to declare the “tests” a “failure” regardless of the actual results. Which, of course, they did. Needless to say, Phillips (which makes one of the prototypes) said the opposite, and it all depends on whether you mean “the device functioned perfectly as if there were actually some standards for building a functioning device” or “the device proved it could detect occupied channels at whatever sensitivity the FCC decides is necessary.” The FCC engineers, wisely, made no comment and went back to their labs to analyze the actual data.
But one of the nice things about field testing is that you learn the most amazing things that you can never learn in a lab, as demonstrated by this ex parte filed by Ed Thomas for the White Spaces Coalition, the industry group that backs opening the white spaces. Apparently, in front of eye witnesses (including the FCC’s engineers), both broadcasters and unauthorized wireless microphone users in the Broadway field test operated wireless microphones on active television channels, at power levels well above what white spaces advocates propose for mobile devices. All apparently without interfering with anybody’s television reception or even — in the case of the unauthorized Broadway users — screwing up the hundreds of other illegal wireless microphones in the neighboring theaters.
A few rather important take aways here: (1) the danger of interference claims by broadcasters and Shure are utterly bogus, as the wireless microphones do not screw up either television reception or each other; (b) the broadcasters and Shure know their interference claims are bogus. If they actually cared on iota about possible interference, they would not casually operate high power wireless microphones on the same channel as active television broadcasts and as each other. Instead, they are so unconcerned about interference that they can’t even remember to pretend to care about basic interference concerns when they are conducting a field test in front of the FCC’s own engineers.
A bit more elaboration on these points below . . . .