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Re: the nature of parabolic reflectors

Subject: Re: the nature of parabolic reflectors
From: "Rich Peet" <>
Date: Wed, 25 Feb 2004 22:38:43 -0000
Same here, e-mail me your shipping address and I will send a Greg
Clark parabolic for a compare.  You can return it COD for your
postage expense.  It would be nice to see it come home again before
5/20 but I will not hold hard to that as I understand volunteer work.

Rich Peet

--- In  Klas Strandberg
<> wrote:
> Eric,
>
> no problem, I will supply what you need. Please get in touch with
my private
> e-mail, and we'll make some planning.
>
> Klas.
>
> At 12:47 2004-02-25 -0800, you wrote:
> >Walter,
> >
> >I have an instrumentation microphone with a diameter of  0.10",
and the
> ability to make quasi-anechoic measurements at essentially any
range.  At
> least I should be able to do 100 meters.  Now if only I had a
parabolic
> microphone.  I'm on the wrong (left) coast relative to you.=20
Perhaps I will
> build one up.  But there are a lot of projects in the queue ahead
of that.
> I can also do polar patterns in increments as small as 1 degree,
although
> it's a lot of work.
> >
> >Is there anyone in the area of Pacifica, California, who would
like to get
> their parabolic microphone measured?
> >
> >Walter Knapp <> wrote:
> >From: "Rich Peet" <>
> >> 4. How would one measure the pressure difference and size at
focus at
> >> various frequencies and at various different origination points?
> >
> >It's going to come down to close to impossible. Unless you have a
very
> >long soundproof room and a good measurement mic with a very tiny
diameter.
> >
> >
> >[Non-text portions of this message have been removed]
> >
> >
> >
> >"Microphones are not ears,
> >Loudspeakers are not birds,
> >A listening room is not nature."
> >Klas Strandberg
> >Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> Telinga Microphones, Botarbo,
> S-748 96 Tobo, Sweden.
> Phone & fax int + 295 310 01
> email: 
>        



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