why did VHF TV need a huge Yagi antenna and FM radio didn’t?

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When the TV was analog and broadcasted on VHF band, you needed a huge yagi antenna. With “bunny ears”, reception was terrible.

But FM radio, more or less on the same frecuency, can be listened with a little single monopole antenna. Why?

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4 Answers

Anonymous 0 Comments

An FM radio signal has a bandwidth of 270kH while TV is between 6-8MHz. If you assume both are broadcast with the same power the TV signal has the same amount of power spread over more of the spectrum which means that it is more difficult to pick up.

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