In article , says...

"Antonio" wrote in message
...
American stations use at most 50,000 watts and they are forced to
lower their power at night,

depends on what class AM station they are, for example 700WLW is a class A
AM station with unlimited hrs of operation, so they are 50kw 24/7.

while at the same time, one station, I
think is in Mexico City, goes from 5,000 to 150,000 at nights.
Any explanation would be appreciated and one question,
Is there any pros and cons of running that much power?

at night the station would carry real far, and could possibly interfear with
other stations real far away, and I guess you could say another con would
be you could have less stations on that same frequency.

How about other countries, whats the most power a station can have?

I saw in the FCC's database a station in cuba that was at 500kw, this link
will show you all the stations in the western hemisphere.
http://www.fcc.gov/fcc-bin/amq?state...=&EW=W&size=10

geoff















Nobody has mentioned that for 5-years of so back in the 1930's WLW
was licensed for 500,000 watts. The signal was so strong that
florescent bulbs within a few miles of the transmitter would glow, and
the station had to cut daytime power to 50,000 watts until "directional
suppressor towers" because the signal interfered with a station in
Toronto.
The whole story is on Jim Hawkin's WLW page, including other
interesting facts, pictures and schematics of the WLW transmitter site.
( http://www.hawkins.pair.com/wlw.shtml )
It doesn't mention it on this site, but I believe the station had
daytime listeners through most of the 48-states, and was heard in Hawaii
and Europe at night.


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