Bert wrote: > But I think now, in the UK and in Italy, vertical and horizontal are > used to help in frequency planning. Especially because mountainous > regions require so many translators. I guess you can reuse the frequency > channel somewhat sooner if you change the polarization. That's as it was when I lived in the UK, many years ago, and still is today, afaik. Cross polarization provides up to 20 db of isolation, depending upon transmission conditions. Dale ---------------------------------------------------------------------- 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.