Antenna reception affected by person.

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Antenna reception can be significantly impacted by the presence and movement of a person in the room. This effect occurs because the wavelengths of TV signals are similar in size to the human body and limbs. UHF frequencies range from 10 cm to 1 m, while VHF frequencies range from 1 to 10 m, making the human body a potential obstacle or interference source. Even slight movements, such as swaying an arm, can disrupt the signal. Understanding this interaction can help optimize antenna placement for better reception.
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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