And, one needs to consider the VERY difficult zoning/land use/historic/RFR/federal land issues in the Santa Barbara market that make it virtually impossible to add new sticks to existing transmitter sites. John Willkie > -----Original Message----- > From: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] > On Behalf Of Dale Kelly > Sent: Tuesday, December 26, 2006 1:48 PM > To: opendtv@xxxxxxxxxxxxx > Subject: [opendtv] Re: Fewer than 2 Million have OTA DTV in US > > Craig wrote: > > > Now here's the question Bert. Dale seems to think you have a pretty > > good handle on the technology, so let's see you apply it to a real > > world problem. Since you believe that the distance between the main > > sticks in the Santa Barbara market is too great to build a viable > > COFDM SFN, why don't you design it so that it will work. > > IMO, Bert does indeed have a grasp of signal and receiver dynamics which > impact DTV reception and does also generally understand issues related to > SFNs. However, he nor you have ever dealt with the practical and financial > aspects of designing an RF system that is FCC compliant and which can > overcome such difficult coverage problems. However, if your maps had the > necessary information, he could likely give it a good start. > > Your maps lack: > 1. Transmitter site locations and FCC antenna pattern and field > intensities. > 2. Longley-Rice predicted coverage maps, which are very important for > determining underserved/unserved DTV areas and how they might best be > covered. > > You also espouse the position that all broadcaster should multiplex from > the > same sites and use the example of how that is commonly done in Europe. In > every case that I'm aware of in Europe, such sites were developed by the > state operated networks and were made available (regulatory) to others as > they came along. The U.S. broadcast system's development did not occur in > such a manner and in fact, cooperation between broadcaster was not > encouraged; therefore this is a rather poor analogy on your part - even > though it makes good sense from an operational perspective. > > 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.