pi R squared? No, pi R round, Cornbread is square.....
I just measure one of the loops, fudge just a bit, and
times it times the number of loops on the spool. Gets
me close everytime.
----- Original Message -----
From: "Reicher, James" <JReicher@hrblock.com>
To: <towertalk@contesting.com>
Sent: Thursday, October 06, 2005 2:56 PM
Subject: Re: [TowerTalk] Cable on a reel using a formula?
> Actually, pi are juicy and cornbread are dry. :)
>
>
> The formula is (2(pi*r) * t where r = radius and t = # of turns.
> To get the correct length, you'll have to measure the radius of the core
> of the wire for each layer.
>
> You might also try looking up the specs and get the weight of the cable
> per foot and the weight of the spool. Weigh the loaded spool; subtract
> the weight of the spool, leaving the weight of the cable. Divide the
> total weight of the cable by the weight per foot and, voila! You have
> the number of feet on the spool.
>
> 73 de N8AU, Jim in Raymore, MO
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