David Eduardo wrote:
"RHF" wrote in message
oups.com...
For One and All,

IBOC - Redefining AM Radio As We Know It :

To properly implement IBOC in the AM Radio Band
both Day and Night would require that AM Radio
Station Service in the USA be reclassified as a
"Local Voice Media Service".

Which, for all practical purposes, it is. Night listening to AM is less than
2% of the population to start with. Night listening beyond the groundwave
contour is restricted to a handful of stations as most US AMs have vastly
reduced night coverage compared ot day coverage. So, there are very few
listening to AM at night and very few stations capable of getting a skywave
outside the local coverage area that is consistently listenable.

I think you should define this "2% of the population" statistic a bit.
Many people have clock radios by their beds and tune into AM at night.
Ever hear of "Coast to Coast AM?".




The FCC has considered stations to be exclusively local for nearly 5
decades.

Reduced - The Power of all Major Market AM Radio
Stations down to 25 KW Day and 10 KW Night

Wrong. In many larger cities, 50 kw is a minimu on anything but the lowest
frequencies to cover the market and overcome the interference level of
computers, dimmers, flourescents, and all manner of other man made
interference.

Your idea neglects the fact that different parts of the AM band have
different coverage for the same power: 50 kw on 1600 covers less than 1 kw
on 540. And it neglects the fact that different parts of the US have vastly
different ground conductivity. 500 watts in Iowa covers better than 50 kw on
Long Island.

Fix - Regional AM Radio Stations at 10 KW Day
and 5 KW Nights

In LA, all but one 5 kw station (KLAC) does not cover the entire market day
or night.

Allow - Local AM Radio Stations to be rated at
2.5 KW Day and 1 KW Nights.

Not enough to cover much of anything at the high end of the dial.

Low Power - Educational, Community and Translator
AM Radio Stations limited to 250 Watts Day and
100 Watts Night.

100 watts today is not usable 2 miles from the transmitter in, let's say,
Florida, above 1200 on the dial.

ok - so it's another stupid idea ~ RHF

Agreed.