Gain (antenna) - Wikipedia

File:E-plane gain plots of J antenna variations.png - Wikipedia

Antenna (radio) - Wikipedia

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Effective radiated power - Wikipedia

What is the reason why an omnidirectional antenna has a low gain compared to other antennas even though it has a large area in comparison to other antennas? - Quora

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Antenna - Satellite Wiki

Third-party Antennas - Teltonika Networks Wiki

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