My Two Cents.

Author:SERAFINI, DOM
Position::Digital television and Internet television - Brief Article - Statistical Data Included
 
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Make note: ATSC and DVB standards were born obsolete! Television via Internet is now the key to the future.

In 1993, in the midst of the battle to standardize digital HDTV former FCC chairman Richard E. Wiley (then chairman of the Advisory Committee on Advanced Television Service), in an attempt to keep the computer industry at bay, remarked, "I have to remind my friends in the computer industry that this is a broadcast standard."

Fast forward to March 1999. "What we can't tolerate at the FCC is strategic delaying tactics, "stated FCC chairman William E. Kennard, warning that the implementation of DTV could result in the FCC mandating a business plan outlining the evolution of the new technology.

What's happening here was predicted in 1993 by station group president Philip Lombardo, "Nobody's saying how we're going to make money at this. "As a result, some top-market TV stations have filed for extensions (mostly over tower issues), while those that already broadcast in HDTV claim their signals are received by some 40,000 TVHHs nationwide, even though the DTV signal from 69 stations now reaches 40 percent of the nation.

Today, by using line-doubling technology at the receiving end, there is no need to transmit HDTV, which takes up all 6MHz of TV bandwidth (19.39 Megabits per second in digital terms) and gets the same HDTV results. At this point, stations can use DTV to multicast up to four programs using its 6 MHz channel (as recently demonstrated by public TV station WETA). But this fix is resisted by the cable industry, which refuses to carry more than one 5 Mbps channel per station. On the other hand, with 67.4 percent of the 99.4 million U.S. TV households on cable, multicast DTV must-carry is a necessity for broadcasters.

In addition, as shown at NAB '99, reception of the 8-VSB DTV signal (the single-carrier ATSC characteristic) still poses problems, especially with multipath (creating a ghost effect on analog sets and loss of signal for DTV). In Europe, the DVB-T standard utilizes the so-called COFDM, or multiple carriers per channel, eliminating ghosts. COFDM is now used in the U.S. for digital satellite news gathering (D-ENG). For this reason, Sinclair, one of the U.S. major station group owners, is calling on the industry to abandon the ATSC standard that took 10 years and $500 million to develop, and switch to the European DVB-TV standard To this, the NAB answered the problem is not with ATSC but rather in the expensive new TV...

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