"Telamon" wrote in message
...

Actually, you live in your own self created universe where you dictate
what people hear on their radios based on some imaginary or
misconstrued information.

Nope... every major broadcaster does the same analysis, generally to
determine where to do promotion and where not to. The source data comes from
Arbitron, so every significant broadcaster in the nation has it.

All subscribed stations do ZIP code analysis to determine where listeners
are... and where they are not. From that, we can form general rules based on
necessary signal strength to get ratings.

As I said, it's part of the formula everyone uses to optimize ratings. Some
do it better than others, but the base fact is the constant on minimum AM
and FM signal strength. Just a few weeks ago, for a limited signal FM, we
used this data to determine where inside a market to place billboards...
even which way on highways and freeways the boards should face... based on
the borders of the usable signal.

Arbitron ZIP code mapping of listenership is quite real, and has been for
over a decade. And there is no way of misconstruing the signal strength in
ZIPs with listenership and those without.