>> The most amazing thing was the obvious superiority of the simple loop >> and rectangular antennas. >Indeed. I suspect two problems. First, I wonder if the active antennas >introduce some extra phase distortion, or other type of distortion, >that was imperceptible with analog TV? Second, the more directional >indoor antennas probably do work better at pulling in weak stations, >but obviously not without being re-aimed. If you're looking for an >antenna that mustn't be touched between stations, the less directional >the better. > >Bert If you want to constructively add multiple signals, then the less directional antenna is superior. It may be that the "principal ray," if there is one, does not have enough SNR to meet threshold, so a narrow beamwidth antenna that selects only this ray does not result in reception. But an omni or much less directional antenna like a loop can collect energy from a multitude of different signals, that when constructively added, exceed the threshold SNR with margin to spare. These less directional antennas have the added advantage that they don't need to be re-aimed, or at least require much less re-aiming, to receive all available broadcasts. This sounds like the familiar COFDM "trick" of using multipath to your advantage. Lynx demonstrated that it was also possible to do this with 8-VSB. Now perhaps LG is demonstrating this principle yet again. They are well-deserving of congratulations, not only for demonstrating that excellent 8-VSB reception is possible, but for actually building a real chip that can be used in actual consumer products. -- Frank ---------------------------------------------------------------------- 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.