[bct] Build a budget parabolic mic

  • From: Tim Cross <tcross@xxxxxxxxxxxxxxx>
  • To: blindcooltech@xxxxxxxxxxxxx
  • Date: Tue, 28 Feb 2006 23:10:18 +1100

I use to use one of these about 20 years ago when working in radio.
You would be amazed at the number of times I've seen people using them
incorrectly. Many people, when placing the microphone in the parabolic
dish make the error of pointing the microphone outwards. However, the
objective of a parabolic microphone is that the parabolic dish
collects the sound wave and redirects it to a focus point near the
center of the dish. So, with a parabolic microphone, you are supposed
to attach the microphone so that its pickup is pointing into the dish,
rather than out of it.

Tim

Debee Norling writes:
 > http://www.bambooturtle.us/ParabolicMicrophone.html
 > 
 > shows how to use dollar store items to build a parabolic mic. The parabolic
 > dish is an umbrella hat -- Ed Potter used to sell them. Bet he never thought
 > of turning one into a parabolic mic.
 > 
 > You'll want to have someone on hand to describe the pictures but the
 > construction looks very easy.
 > 
 > --Debee
 > 
 > 
 > 

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