Calculation of "line of sight" is bit more complex then that.
Agreed. But I didn't want to bomabard all forum readers with heavy mathmetics for the heck of it. I just wanted to give a rough idea.
As for the links above, those calculations are based on theory of LoS. LoS cannot be calculated using those methods as it exists in real life. Those methods assume trasmission in an area where there is nothing between the transmitter and the receiver. It also assumes that the earth's surface would be in a perfect plane. It also does not take into account the refracting/bouncing waves. None of those assumptions is true. Going by those assumptions it would be impossible to receive the transmission right under the transmitting tower if there is an obstruction inbetween the transmitter and the receiver. But that is not the case in real life. In real life, the definition of LoS doesn't work that well. Due to their very nature, Radio Wawes tend to refract, making the transmission multidimensional rather than unidirectional, as the theories above would suggest. Calculating LoS coverage area based on what college text-books or some page on Internet suggests is kiddish, as those are only for illustrative purposes.
In real life, LoS is a lot more than just that. The coverage area of a transmission is strengthened or weekend by the medium it travels thru and obstructing/reinforcing energies present in it. Practically, a transmission would be available in a wider coverage area than a calculation will tell you it will.
Standard FM broadcast equipment is "Stereo Enabled"
Standard AM broadcast equipment is NOT "Stereo Enabled"
Is that specific enough?
Of course it is, the only problem is that, that is about the broadcast equipment, not FM, the broadcast technology. There is a difference.
~ Ranjeet Rain
Agreed. But I didn't want to bomabard all forum readers with heavy mathmetics for the heck of it. I just wanted to give a rough idea.
As for the links above, those calculations are based on theory of LoS. LoS cannot be calculated using those methods as it exists in real life. Those methods assume trasmission in an area where there is nothing between the transmitter and the receiver. It also assumes that the earth's surface would be in a perfect plane. It also does not take into account the refracting/bouncing waves. None of those assumptions is true. Going by those assumptions it would be impossible to receive the transmission right under the transmitting tower if there is an obstruction inbetween the transmitter and the receiver. But that is not the case in real life. In real life, the definition of LoS doesn't work that well. Due to their very nature, Radio Wawes tend to refract, making the transmission multidimensional rather than unidirectional, as the theories above would suggest. Calculating LoS coverage area based on what college text-books or some page on Internet suggests is kiddish, as those are only for illustrative purposes.
In real life, LoS is a lot more than just that. The coverage area of a transmission is strengthened or weekend by the medium it travels thru and obstructing/reinforcing energies present in it. Practically, a transmission would be available in a wider coverage area than a calculation will tell you it will.
Standard FM broadcast equipment is "Stereo Enabled"
Standard AM broadcast equipment is NOT "Stereo Enabled"
Is that specific enough?
Of course it is, the only problem is that, that is about the broadcast equipment, not FM, the broadcast technology. There is a difference.
~ Ranjeet Rain
