"PocketRadio" wrote in message
...

How do you know this? �How do you define listening? �PPMs that pick up
the
radio behind the counter when you buy a pack of smokes? �The radio in
the
taxi?

We know it after several different parties analyzed literally millions of
Arbitron diaries over a multi-year period. Diaries include the home and
work
ZIP code, and since 70% of listening occurs in those two locations, it's a
perfect base. Diary ZIP code returns by station were laid over maps of
coverage and the results tabulated... and we got the figures cited.

This analysis, also done separately by Arbitron internally, resulted in
both
the AM and FM signal based crediting system for stations or shows
available
on more than one station in a general area; Arbitron's ascription process
first uses best signal to make a decision, and if neither station
available
has a good signal, a random number generator determines who gets credit.
But
the base here is the same study... where is each station listenable under
normal circumstances.- Hide quoted text -

- Show quoted text -

I thought that you said it wasn't worth disussing HD Radio, except if
it was against the FM-HD power increase?

What in the above two paragraphs has to do with HD?