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Comment Re:What intelligence? (Score 1) 681

I was wondering when someone else would notice this and point it out. If it had been an actual hostage situation, in which the suspect's sibling was present, why would you not at least verify the identity of the person before you start shooting? Guy possibly sends a hostage out and the police shoot the hostage? At least the hostage-taker wants the people to stay alive! What exactly did the police want?

Comment Alternative Medicine Vs. Chiropractors (Score 4, Insightful) 328

This article spends almost its entire length going on and on about things like alternative medicine, but almost nothing about the actual resolution of back pain, except with respect to children (which, the article acknowledges, is not something all chiropractors endorse).

I don't buy into any of the nonsense, and my chiropractor doesn't either, but he uses the Impulse tool which doesn't hurt when it makes adjustments and I leave feeling much better than when I arrived. Before making any adjustment, he massages the back muscle to loosen it up and prevent damage. He's given me exercises to strengthen my back muscles to help keep things in alignment--and they work to the point that I go back about once per year when I do something really stupid and throw something completely out of alignment. He specifically said in my first appointment that if I'm coming back twice a week for years, he's not done his job properly.

Several years ago when I popped my scapula out of place while stretching and pinched a nerve (8-9 on the pain scale, didn't sleep a wink that night), the chiropractor put it back in place and the sharp stab instantly became a dull ache that went away after a few days.

I fully accept the idea that there are con artists out there who do the things mentioned in this article. I do not accept that it is universal or that chiropractors are incapable of providing any benefit whatsoever.

Comment Re:Digital would be less "twitchy", but... (Score 1) 80

Analog power was measured as peak power while digital power is measured as average power. If you measured analog power in average, that 100 kW would become about 25 kW (less than the 45 kW ceiling). A similar difference arises between 316 kW becoming about 80 kW (less than the 160 kW ceiling). On UHF, the power difference is 5000 kW for analog versus about 1250 kW for digital, slightly more than the 1000 kW ceiling, but only by about 1 dB.

On top of that, about 50 dB SNR was needed for a clear picture with an analog signal, while a digital signal requires only 16 dB for a perfect decode. So the difference in required SNR is more than 30 dB, but the power change, even if it actually was 5000 kW to 1000 kW, is only 7 dB.

Comment Re:Of course they don't need the full spectrum (Score 3, Informative) 80

Analog power was measured as peak power while digital power is measured as average power. If you measured analog power in RMS, that 100 kW would become about 25 kW (less than the 45 kW ceiling). A similar difference arises between 316 kW becoming about 80 kW (less than the 160 kW ceiling). On UHF, the power difference is 5000 kW for analog versus about 1250 kW for digital, slightly more than the 1000 kW ceiling, but only by about 1 dB.

On top of that, about 50 dB SNR was needed for a clear picture with an analog signal, while a digital signal requires only 16 dB for a perfect decode. So the difference in required SNR is more than 30 dB, but the power change, even if it actually was 5000 kW to 1000 kW, is only 7 dB.

Comment Re:Use an antenna. (Score 1) 578

FCC rules only allow for stations in the DMA to be provided, but the stations and DMAs are actually assigned by Nielsen. Don't ask me, I think it's stupid too. In certain, select cases, the FCC has overridden Nielsen and assigned certain stations to other markets, for example where a station can't compete in the market it's located in due to poor coverage of that market, but as a general rule, it's up to Nielsen who is assigned where.

So are you in New Hampshire but in the Portland or Burlington DMA then? The law was changed not too long ago to require the carriage of statewide PBS networks for all customers in a state, but if they don't carry a good news or affairs type program, that doesn't really help. And, of course, NHPTV is now run out of the WGBH studios anyway.

Comment Re:Use an antenna. (Score 1) 578

Sounds like you're in that part of southern Vermont that's part of the Boston market. Am I in the right ballpark?

In your case, you're right. There was a time, probably in or before the 1970's, when people either invested in huge antennas to get what they could get or invested in CATV, but those people watched Boston, and thus that area is now considered to be in the Boston DMA. In fact, that area used to have a full-power repeater station, WRLP-32, which rebroadcasted the signal of WWLP-22 in Springfield, MA. But everyone watched Boston, they made no money on it, and they shut it down in 1978. And so now it's almost impossible to get more than one or two stations in that area. (I think WEKW in Keene, NH might be doable for PBS without too huge an investment, depending on specific location, but that's basically it.)

Many other rural areas do still have translators, like rural Utah and much of the west. Even in urban areas, I've spoken with plenty of people who either don't know OTA TV exists anymore, or who assume it won't work for them, and in large part it's because of buying crap equipment that's sold at Walmart.

(For the record, the FCC does not assign the DMAs, private company Nielsen does. There are many people, myself included, who hate this and wish it was done differently. I need to write a white paper about the market ranking and assignment system I use on my website, and then see if I can get the FCC to adopt it.)

Comment Re:Use an antenna. (Score 1) 578

Very large parts? There are definitely areas that don't, particularly in Alaska, but I would argue that more than 99% of the population has access to OTA HD signals. But, those people have to invest in the right equipment to do so and not expect to plug in an antenna that would be outperformed by a paper clip and still get good reception. (Misinformation from the Walmarts of the world is responsible for a lot of that.)

Disclaimer: I work for the FCC on matters of OTA digital TV signal propagation and interference. I also run a website about OTA TV.

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