antenna question

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john cena
Posts: 1
Joined: Sat Jan 24, 2015 3:17 pm

antenna question

Post by john cena » Sat Jan 24, 2015 3:48 pm

so i built a half-assed antenna for am radio that consists of a telephone cord wrapped around an old hard drive
this is the signal i get with everything plugged in properly
http://puu.sh/eXyIr/d36da0a09f.jpg

i was fiddling around with the antenna cable connection and noticed if i touch the outer ring of the connector to the inner ring my reception is amplified to a huge amount
http://puu.sh/eXyLT/c10eb87d85.jpg
even if i unplug the actual antenna and just use a ~1 metre length of cable i can still get amazing reception if i try this

any reason for this to happen?
sorry if it's some obvious thing and i'm an idiot

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