2006-12-27 06:26:54 · 4 answers · asked by focusedmind 2 in Science & Mathematics ➔ Engineering
A radio receives it signal from the station via the carrier waves (am – Amplitude modulation, FM is frequency modulation). The carrier waves energize the antenna by passing by it. The antenna does not actually reduce the amount of energy carried by the waves. So no the number of radios do not effect the coverage area.
The one main item that may affect radio coverage is the weather. Cloud cover usually helps but rain will hinder the reception. The temperature of the air also has some slight impact to the coverage area.
2006-12-27 07:00:48 · answer #1 · answered by Wazupy 1 · 0⤊ 0⤋
Hi. Not as you might think. For years I wondered how a crystal radio got it's power. I gets it from the energy of the radio wave. This MUST have a slight effect on the energy in the line of sight of the antenna, but at the power level that most commercial radios use the decrease is insignificant.
2006-12-27 15:04:55 · answer #2 · answered by Cirric 7 · 0⤊ 0⤋
Yes to a small degree. A radio receives a signal by tuning your antenna to that frequency (ie. vibrating it at same frequency) then it picks up the same frequency and the amplifier measues the peaks and troughs to give you the music... so if you have lots of radios tuned into a channel, you will have more positive reinforcement of that frequency and the signal should be stronger.
2006-12-27 15:34:51 · answer #3 · answered by John B 1 · 0⤊ 0⤋
No in the physical sense. Sponsored radio stations may change their coverage areas if they do not get the response they need.
2006-12-27 14:31:46 · answer #4 · answered by kellenraid 6 · 0⤊ 0⤋