Cliff Benham wrote: >Uh, Bert, look what you just said. You said you can't >get WETA-DT from their lower tower but you did >receive their analog signal from that tower when >thay had to transmit it from there. > >To me this means that NTSC analog works better >than ATSC digital, But again, "compared to what?" Everyone knows that analog degrades more gracefully. There's no need to beat that dead horse, unless you want to stay with analog and trash the whole digital thing. When WETA used that digital transmitter for its analog programming, I did not watch it. It was way too grainy and ugly a signal. But even more interesting is that I tuned in the actual Channel 27, on whch WETA-DT is supposed to be, and the Accurian shows no signal. So it must be quite weak, considering how strong some of the Baltimore non-full-power stations come in (46.6 miles away). The same holds for UPN 20. I tuned in the actual frequency, and virtually no signal there. By the way, the Accurian tunes in a station whether you use the actual channel or the virtual channel. (Maybe they all do.) >Good enough for emergency warnings and >weather forecasts? You bet. ATSC loses this one >big time. Sorry, I just can't get all worked up about this "emergency" service. And by the way, for that, E8-VSB would be quite effective, since it lowers the C/N margin required by something like 8 dB. E8-VSB seems like a really simple way to gain a few dB of margin while staying totally compatible with existing receivers. No unlike COFDM, if you diddle with the FEC only and keep the same constellation (which is a totally legit thing to do). Bert _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today - it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/ ---------------------------------------------------------------------- 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.