John Golitsis wrote: > This brings to mind a similar experience I've had in the past, but never > really thought to mention. When I had my store, my tiny outdoor Terk yagi - > which was pointing straight at a metal hydro tower, which was in front of a > mid-rise apartment building - picked up Buffalo PBS best, but often times > during inclement weather, the main HD channel would fall to pieces, while > that station's SD sub-channels would be largely unaffected. Before you > mentioned this, I suppose I thought a phenomenon like this would be largely > known, but perhpas not? > Bert's comment was the first I'd heard about it anything like that. I can offer no sensible explanation since they are both in the same data stream. I don't believe sub-channels offer any special redundancy but maybe just having a frame take fewer packets is some sort of an advantage. - Tom > BTW...neither that channel's analog signal, nor any other Buffalo station's > analog signal were even remotely watchable with the same antenna. > > ----- Original Message ----- > From: "Albert Manfredi" <bert22306@xxxxxxxxxxx> > >>Even more interesting is that the SD weather multicast >>on 11-2 is quite solid. Only a very occasional dropout or >>slight pixellation. I suppose that if more packets per >>unit time are required for the HD 11-1, and if the >>corrupted packets are evenly spread out, maybe that's >>why the SD subchannel appears more solid. Interesting >>phenomenon. Perhaps you do gain from SD after all, >>even without changing the RF coding. >> > > > > > ---------------------------------------------------------------------- > 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. > > ---------------------------------------------------------------------- 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.