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Is the US Ready For the Switch To DTV?
tonsofpcs writes "On Monday, September 8, Wilmington, NC will be the first television market (#135) to make the switch to DTV by shutting off their analog transmitters. This forum will be posting updates throughout the coming months to keep everyone updated on how the transition works so that we are all prepared come February 17, 2009. So far, it seems Wilmington will still be going ahead as planned, despite Tropical Storm Hanna's proximity."
DTV also provides fewer stations than analog.
Get a different tuner/antenna.
My experience was quite the opposite. Using my original crappy bunny ears, I was able to receive around 5 channels in analog. Switching to digital brought these fuzzy/static channels to full 1080i. Add in a mid-sized powered antenna, pointed the right way and that number goes up to 32 (counting the spanish and shopping channels).
From the suburbs west of Boston I get: Boston, Providence and Manchester. All in far better quality than analog could have possibly provided.
If you want to blame the FCC for something, blame them for selecting ATSC. Why on earth they chose MPEG2 when everyone else gets MPEG4 or H.264 is anyone's guess (greed from patent holders maybe?).
My experience with digital TV in the UK is going from analogue at 4.5 channels (5 was not available in about half the places I went) to digital with far too many to count. The signal strength, picture and sound quality went through the roof with the transition too. Plus, no messing around with tuning at all, it just pulls channels, names and schedules out of the ether.
If your experience is typical, the FCC has managed a frak-up of truly epic proportions.
Of course, with all the new channels there's still nothing on worth watching, but that's a problem with the culture, not the technology.
All intents and purposes. Not intensive purposes.
The US has similar restrictions, however even after the changeover is complete, many stations will still be operating at 1/10 of their original power (or less). You can find information on specific station licenses via FCC's TV Query
Video Production Support
I live in a valley...
next to an HD-only transmitter.
Needless to say, analog *anything* has been an issue. Last spring, sensing there may a be rush later, I got our two coupons from Uncle Sam, and cashed 'em in. A few points on my experience:
o Direction and gain are definitely more of an issue. Since we barely got anything analog clearly on bunny ear/loop, we got next to nothing with digital.
o With digital, it's all or nothing. Either you have clear signal, maybe with some artifacts, or you have black screen.
o *The* most annoying thing is that sounds cuts first.
o So, I did what any self-respecting tinkerer would do. I build a grey-hoverman antenna out of foam board, packing tape, tin foil, and picture hanging wire - all from from Walgreens (U.S. pharmacy) :-D. http://www.digitalhome.ca/ota/superantenna/
o Obviously, with such rarefied materials I have a less-than-precise design - that works... really well.
o The GH antenna is highly directional. Since digital is crystal-clear, we put up with adjusting the thing in the bay window.
o We get 9-12 clear channels now, instead of 4-5 distorted ones.
o It's best to put it in an attic, or outside. Be sure to ground it, etc. The higher, the better - generally.
o Note that there are two ranges for VHF DTV, high channels and low channels. The Grey-Hoverman seems to do well with UHF DTV and high VHF. Most DTV seems to be UHF.
o Only some DTV is HD. Stations were given sub-channels. Some use only the main channel and switch back and forth between HD. Others put SD on one and HD on the other. Others use all for HD, with different content. The public television stations, strangely enough, seem to be making the best use of the sub-channels.
o The other prominent build-able design is called a Yagi. It consists of connected bow-ties, rather than zig-zag elements. The Yagi design is nice, because its gain is roughly even across UHF. The Grey-Hoverman seems to have better gain than the Yagi on some ranges, but cuts out in others. Check the frequencies of your local stations and compare them to the two antennas' gain charts before deciding.
o Why the range of channels for me? Well, in a valley the signal has echoes. Some echoes are stronger than others. Sometimes the amp makes the two echoes the same strength. In that case the converter box cannot lock in. Thus, if your location is subject to echoes (hills, valley, etc.), design your wiring to allow the easy removal of your amplifier.
o Also, atmospheric conditions seem to have an effect. On clear dry days we don't do so well; on wet or humid days, I think we could get New York City, if we wanted (we're in southern N.E.).
o Finally, going digital with a converter has one interesting benefit for you OSS fans. Since the Neuros OSD is still SD, converted DTV works nicely with it. I don't have one yet, but they are now on Amazon, and I am strongly considering getting one.
Computer Science is all about trying to find the right wrench to bang in the right screw. -T.Cumbo?
Absolutely correct. This has been sold to broadcasters as a way to save money while transmitting the same content. They can cut power, theoretically, save a ton of money and still get the same advertising revenue.
Unfortunately, as the previous posting observed, the public will pay the price in quality and quantity of stations available to their antenna.