Telamon wrote:
In article ,
"David Eduardo" wrote:

"Telamon" wrote in message
...
But about 95% of measured listening occurs inside the 64 dbu contour, and
80% is inside the 70 dbu contour.
As defined by the ability of HD to perform at all. A self fulfilling
outcome.

I should have been clearer... 95% of analog FM listening is inside the 64
dbu contour.

The last time I looked the FM radio in my car didn't have the ability to
differentiate which side of the 64 dBu coverage line it was on.


I remember 64 dBu as a TV term. In radio it was 60 dBu (aka 1 mV/m; aka
Grade B Contour). Perhaps it has since been modified, as I retired from
radio about 20 years ago (when people stopped "listening").