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Reply To: How to calculate anteena height….???

#46785
Pix
Guest

Hi Yash,

It is not about the antenna, but rather the frequency band of the antenna ! You can find the formula here :
en.wikipedia.org/wiki/Free-space_loss
relation : Free space loss

you’ll see that 900MHz provides twice more rx power at the same distance (twice the power = +3dB).

Furthermore, 900MHz tends to get less attenuation from obstacles (such as buildings, windows, trees, etc.), so it covers further away.
en.wikipedia.org/wiki/Hata_Model_for_Urban_Areas
relation : Okumura Hata, Radio propagation, etc…