BRENT said:
I am going there in late October, and was just curious if anyone knows what the AM band sounds like at night?
Of course I am in Atlanta and the AM band like everywhere else in tye USA, is alot of garble with thousands of station's bouncing off each other.
Both cities are enormously noisy (RF noise) with all manner of computer interference, power line leakage, improperly shielded electrical boxes ranging from stoplights to wiring that is put in under the cover of night to steal electricity.
I worked with Mega 98.3 and Radio 10 in Buenos Aires. When the AM was built in the mid 90's, the 100 kw transmitter on 710 had to be made directional to get a usable signal over downtown from only about 45 km away... effectively putting 130 kw over downtown.
If you are in the hotel areas of either city, forget it. The noise will be very high, and the high powered (lots of 50's in Bs. As. and many 100's in Rio) preclude a lot of DX, and any you hear will be in the immediate area. Montevideo for Bs. As. or Sao Paulo for Rio... and a few surrounding stations. Getting Chile or Bolivia is very, very hard.
Suggestion, though. Spend the $20 bucks or so and get this year's World Radio TV Handbook from Amazon so you have a reasonable list of stations in the Southern Cone.
Remember, both nations have much more lax broadcasting laws and also don't control interference on much of anything. Also, call letters are seldom known or used... I never knew the calls of the 2 stations I worked for. The station name is the identitfier, not the calls.