An accurate data bases of the transponder frequencies used in each market? As in satellite transponder frequencies? Not only is that notion implausible, it is utterly impossible to predict every single transponder, on which satellites, any one earth station will use in a particular market at some future point, let alone the aggregate of the entire market.
In addition to the regular network feeds, that can be easily identified and cataloged, there are many one time wild feeds such as, news feeds, sports feeds, and teleconference feeds, that are booked ad hoc and therefore cannot be made into a database a year in advance.
Trying to make an accurate database of the transponder frequencies used by any particular station is like making a database of telephone numbers you will call in the coming year. You can probably predict 90% of the numbers, but have no way to even know the last 10%, unless you say "all numbers from 000-000-0000 to 999-999-9999." (And that doesn't even address international calls...)
Likewise, all transponder frequencies must be protected in all markets. John----- Original Message ----- From: "Craig Birkmaier" <craig@xxxxxxxxx>
He noted, as have others, the need for accurate data bases of the transponder frequencies being used in each market. If this information is available and the FCC rules are followed there should be no interference. This seems plausible given the reality that there have not be any reports of interference in the markets where "legal" devices were being tested.
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