Static on FM reception

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bry_456
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Static on FM reception

Post by bry_456 » Fri Jul 15, 2005 5:04 pm

Hi everybody,<p>Why is it when you are picking up a lot of interference on a radio and whenever you touch the anteanna the signal clears right up? I am thinking that the impedance of the anteanna does not match up with that of the anteanna input. <p>Thanks <p>Bryon

positronicle
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Re: Static on FM reception

Post by positronicle » Fri Jul 15, 2005 5:51 pm

--Edited by Positronicle--

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Chris Smith
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Re: Static on FM reception

Post by Chris Smith » Fri Jul 15, 2005 6:40 pm

Touching the antenna changes the impedance of it, and you being a large body of water and now a large mass of antenna and all, .....Static is like little BBs against Goliath, .....they hit your large water mass and don’t affect it much.<p>Meaning you absorb the static and it doesn’t move you at all unlike the lightweight antenna, and heterodyne circuitry which is ultra sensitive.

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