Antenna reception affected by person.

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SUMMARY

The reception of TV signals via antennas is significantly affected by the presence and movement of a person in the vicinity. This phenomenon occurs because the wavelengths of UHF (10 cm to 1 m) and VHF (1 to 10 m) frequencies are comparable to the size of the human body and its movements. As a result, even minor movements, such as swaying an arm, can disrupt the signal reception. This explanation is supported by the principles of electromagnetic wave propagation and interference.

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Dav333
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I have a antenna in my room & it runs to my tv tuner.

Just curious why the reception of the signal is affected by a person moving around the room? Even swaying your arm slightly affects it.

thanks.
 
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because the wavelength of tv antenna is in the same order of magnitude with your hand.
A UHF frequency have wavelength between 10 cm to 1m while VHF frequency have wavelength between 1 to 10 m. [data taken from Wikipedia]

Hope it explains
 

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