Not quite true. The 2dB advantage was the nominal value attributed to ideal "edge of coverage contour" that was quantitatively collected and measured. Even in the "best" real world conditions we never found a 4dB differential which could be identified in ideal laboratory conditions. The same holds largely true today. Those 1st (and 2nd and 3rd and 4th and...) WERE bad. We simply acknowledged with the LG 5th generation that as a subjective matter, the many, many, many shortcomings of earlier devices had been largely overcome. There is always a penalty for multipath in a single carrier system. It needs to be managed. The impact is ALWAYS negative.
NUF said... On 9/30/2010 4:21 PM, Manfredi, Albert E wrote:
John Shutt wrote:Given DVB-T's reception in the UK with such miniscule power levels,That is misleading to the point of being disingenuous, John. The UK and Italy, each of which is the size of one small state in the US, deploy 2000 towers each to cover their population. France uses 3000 towers. In the US, we have a total to about 6000, counting the big sticks and the low powered translators. That is a difference you seem to ignore. And not just that, but it only takes a few dozen transmitters to cover the majority of the population here, as we discovered during the debate about how many O&Os exist today. Also, I'll remind you that this miniscule power you're talking about is translating into very tenuous indoor reception in those Euro countries. Even at close range.the proven far field performance of DVB-T compared to ATSC during the Sinclair Baltimore Summer of Love in 1999, I doubt that your reception would be any worse than it is today, and probably better.Sinclair found a 2 dB difference in favor of ATSC, but they also couched that with an acknowledgment of how bad those 1st gen receivers were. Bert ---------------------------------------------------------------------- You can UNSUBSCRIBE from the OpenDTV list in two ways: - Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.
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