"dxAce" wrote in message
...


David Eduardo wrote:

"dxAce" wrote in message
...


David Eduardo wrote:

Because the others are not usable by the average listener. Mexico, and
many
other Hemisphere countries, license MW every 20 kHz in the local
market.

What does that have to do with us, gringa?

If you want to discuss, cut out the stupid efforts to offend. They are
merely distractions.

What it has to do with the USA is that the AM rules were mostly written
in
the 30's when night AM reception was where most tune-ins occured. Today,
most AM listening is in daytime hours, on receivers that are musch more
selective. So the adjacent channel rules are simply 50 years out of date,
and do not reflect current analog technology or the use of radio.

Who says? You, gringa? You need to take your little dog and pony show back
across the border.

Except for some changes in the skywave protection rules and the breakdown of
the (useless) clears, the exiting rules are based on the 1934 ones. So the
source there, fella, is the FCC.

As to listening. I refer you to any library that has a full collection of
Broadcasting Yearbooks through the late 50's. All those show the usage of
radio, and one can see the post-lift of the freeze effect on night radio,
where in a matter of 30 months, night listening to radio declined to very
low levels. As to the later history of AM and night listening, Arbitron
started measuring in 1965 and you can track AM shares at night to the
present very tiny levels.

All this data is independently verifiable. But admitting that would be tough
for you.