2006-06-12 04:50:17 · 4 answers · asked by margie 1 in Science & Mathematics ➔ Geography
During the daytime, radiation from the sun does two things that block those stations:
1. It increases the overall radio signal noise level. This buries the weaker signal from far away stations.
2. It changes the ionosphere so that radio waves do not bounce off as well. This is how radio travels very long distances, by bouncing off the ionosphere (in the upper atmosphere) and the earth to reach you.
2006-06-12 04:58:40 · answer #1 · answered by davidmi711 7 · 0⤊ 0⤋
Some AM stations those which are not clear channel, are forced to reduce their signal strenth at night. This enables you to get 50,000 watt clear channel stations (who do not have to reduce their signal) from a greater distance as their signal does not have to fight a stronger signal that is close to you..
2006-06-12 11:52:37 · answer #2 · answered by Coupe60 5 · 0⤊ 0⤋
It's time to get satellite radio.
2006-06-12 11:54:21 · answer #3 · answered by Rayne 3 · 0⤊ 0⤋
sun light has lots of interference, ultraviolet, infrared, etc.
2006-06-12 11:57:06 · answer #4 · answered by jimbob92065 5 · 0⤊ 0⤋