"David" wrote in message
...
David Eduardo wrote:
"D Peter Maus" wrote in message
...

And using technology designed primarly for cell phone reception, the
FM in my Nokia allows some pretty impressive reception, using nothing
more than the earphone cord as an antenna, as far out of town as
Marengo, well outside of Chicago ADI.

There is no Chicago ADI.
Radio

Arbitron...maintains...areas for radio stations; each is called an area of
dominant influence (ADI). There are 286 ADI's in the United States.
-wikipedia

Nope. Wikidud data.

Arbitron does not use ADIs any more, and has not for about 15 to 18 years.
They use DMAs, same as Nielsen. Nobody uses ADIs any more, particularly
since Arbitron does not do TV surveys. Arbitron reports are based on MSA, or
metro survey areas, and twice a year you can also get, if you pay for it,
DMA data... it is not released to the trades, ever. And buyers never ask for
it. The PPM apparently will not use DMA data at all.