Some excerpts from:
The Multipath To Clarity
Receiving HDTV Over The Air Takes Luck And Lots Of Patience
By Philip Yam
Scientific American, June 2005, pp104-107
Keep the antenna level. Rotate it 90 degrees. Move it a few inches to the left. Stand to the right. Hold it a bit higher... there-nope. Try again. That has been my high-definition television (HDTV) experience. I plunged into the alphabet-soup world of digital television (DTV) in 2003....
[RJ: He's in a Manhattan apartment on the 11th floor. Used Samsung SIR-T351. Lots of "No Signal" messages with bow tie antenna. Discusses 8-VSB and COFDM. His experiences similar to Sinclair's findings. Gives 8-VSB another shot with Silver Sensor. Still sporadic.]
In sticking with 8-VSB, the FCC gambled that improving technology would save the day. It is shaping up to be a smart bet, as receivers get better: New circuitry made by LG Zenith ... performance convinced Sinclair to drop its objections to 8-VSB. As of this past March, however, LG had not offered these units for sale.www.sciam.com
[RJ: I hope he's right that improving reception technology will save the day. But when LG won't bring it to market, what is one to think? That it's too expensive to build for a reasonable end user price? Anything to do with changes for the broadcast flag? Or for E-8VSB?
I have had similar, though not quite as bad, experiences in downtown Chicago with an LG 3100A and a Silver Sensor. Antenna positioning is critical and one position does not work for all channels.
There IS a need for better ATSC receivers. And WHY are these devices rarely advertised? In most of Marc Schubin's recent weekly newsletters, there are NONE being advertised.]