Radio waves

[matt_london]

Would a large amount of radios, placed between my radio and a transmitter - and all tuned to the same station - make my signal weaker if I tried to tune to the same station?

[mibn2cweus]

Once electro-magnetic energy is coupled to space from a broadcast antenna, it behaves much as the light radiated by a light bulb except that it not of a visible frequency of light. The wavelengths of radio-frequency energy are longer than those of visible light and so can pass around larger obstacles. Antennas and other obstacles that lie in the path of the broadcast will shade the energy between your antenna and the broadcast antenna with varying degrees of transparency. The effectiveness of inline obstacles will depend on their size, conductivity and the wavelength of the radio frequency in question and on this basis should be avoided.

Ideal antenna placement considerations from land based transmissions can approach the mystical in proportions. Interaction between direct and reflected broadcast emissions can have a profound effect on the quality of the received signal. Often a little experimentation with direction, position and angle of the antenna, antenna leads and the receiver itself can produce marked improvements in reception.

[dawkins]

No matt the radios will not reduce the quality of the signal as if they were a sponge but they would probably cause a great deal of electromagnetic interference.

[Gef]

I can still pick up Radio 2 even though there are several million others tuned in to it.