In Reply # 56 (Jan. 30, 7:57 PM Central Time), ve3jf wrote,
If this [ David Eduardo’s claim that “a third or less of listening takes place in the car” ] is the case, isn't it remarkable that the NPR study concentrated completely on mobile reception? They went out of their way to show that impairments due to IBOC interference can be masked by the ambient noise in vehicles, by putting their test subjects in cars, and playing back previously recorded audio samples as they drove around in traffic. Reception in quiet listening environments simply wasn't considered at all.
And then there's the magic calculator they came up with to show the allowable digital power that a given station should get. It's based on the estimated D/U ratios on the protected contours of 1st adjacent stations - just like the previous calculator that they came up with – remember, that one that showed virtually no stations should get a power increase? [Emphasis supplied.] The new one is essentially identical, except that they threw in an 8 dB fudge factor that now permits big increases in most cases. The reasoning behind the 8 dB tweak is fuzzy, to say the least.
Under pressure, the NPR folks have resorted to some really bad science here. And the FCC has once again thrown the public interest out the window by not subjecting their report to any serious scrutiny - in fact, not requesting any comments at all.
Oh well, I won't waste any more time writing about this stuff. Let 'em stew in their own juices.
Thank you, ve3jf, for pointing out how much weight NPR gave to mobile reception in their study. And thanks even more for reminding me of the original version of the NPR Calculator.
That original version agreed with my own calculations for the handful of stations for which I had previously tried to do my own calculations. The new one is way off!
There’s something much worse than resorting to “some really bad science” here. When they removed the original NPR Calculator from their web site, they were actively suppressing good science.
If they were practicing real science, rather than just serving as a propaganda tool for their corporate bosses (and yes, non-profits can be just as ruthless in advancing their own agendas as business interests), they would make the original version available, perhaps with some caveats (and I really like to see how they’d spin the differences!).
But of course, the technically ignorant business school grads running NPR won’t let them.
And I stand by “technically ignorant.” In order to support Iniquity’s utterly daft technology, it isn’t absolutely necessary to be technically ignorant—not if you (1) have a financial interest in promoting it, (2) have already invested a lot of your own prestige in promoting it , and thus think that admitting that it was a mistake would lead to what the Chinese call “losing face,” or (3) have a good use for the technology, even if it doesn’t work very well.
NPR as an organization, having developed the protocols for “HD” multicasting, clearly qualifies for number 3, and because of the way they’ve been promoting it, for number 2 as well. As for number 1, I’m not alleging that NPR has a financial stake in Iniquity, only that—CPB matching grants notwithstanding—they’ve spent so much of their own money on those transmitters that they can’t just write it off so easily.
And if the NPR suits aren’t actually “technically ignorant”—if they do in fact understand just how bad the interference problems will be—and support the power increase anyway for the three reasons above, I think they have to be labeled psychopathic. Here’s the dictionary definition of a psychopathic personality:
“psychopathic personality 1: an emotionally and behaviorally disordered state characterized by clear perception of reality except for the individual’s social and moral obligations, and by pursuit of immediate personal gratification...” (From Webster’s Ninth New Collegiate Dictionary, 1991 ed.)
But it’s not just individuals. Organizations, too, can exhibit psychopathic behavior—even non-profit ones! And if blatantly reckless disregard for other users of the spectrum doesn’t qualify as psychopathic behavior, what does?