[Lowfer] modeling (fwd)

Sat, 8 Mar 2003 09:03:17 -0600 (CST)

I won't actually be able to wind it _today_ because I have to build the 
form 
first.  My plan is something similar to what MP (and probably many of you) 
are using:  plywood top and bottom and dowel rod perimeter for 
basket-weave winding.

But I know how big it needs to be now and can get started!

Thanks!

Eric

On Sat, 8 Mar 2003, WE0H wrote:

> Taps definitely. You can always pull turns off but to add them is a pain in
> the behind. Happy winding and hope you have strong hands and arms today!!!
> 
> Mike>WE0H
> http://www.we0h.us/lf
> 
> -----Original Message-----
> From: [email protected] [mailto:[email protected]]
> On Behalf Of Eric Smith
> Sent: Saturday, March 08, 2003 8:47 AM
> To: [email protected]
> Subject: RE: [Lowfer] modeling (fwd)
> 
> Ok, THANK YOU!
> 
> Unless this is not a good idea, I'll wind the coil to 2.5 millihenries but
> add a few extra turns with taps.  Also, I'm including a variometer.
> 
> Thanks a bunch,
> Eric
> 
> 
> On Sat, 8 Mar 2003, WE0H wrote:
> 
> > And my little birdie says 2.5mh and you should be right in the ballpark. I
> > think Lyle is out of town or he would have gotten back to you with the
> exact
> > figure.
> >
> > Mike>WE0H
> > http://www.we0h.us/lf
> >
> > -----Original Message-----
> > From: [email protected] [mailto:[email protected]]
> > On Behalf Of Eric Smith
> > Sent: Saturday, March 08, 2003 8:38 AM
> > To: [email protected]
> > Subject: [Lowfer] modeling (fwd)
> >
> > Seriously, guys, I need some help!
> >
> > All I need to know is (approx) the amount of induction I need -- then I
> > can use AWG-COIL to figure out the physical properties of the coil
> > (length, width, # of turns, etc) myself.
> >
> > I'm just having trouble figuring out how much inductance I need for my
> > antenna.  Please see antenna details below.
> >
> > I appreciate your help in advance!
> > Regards,
> > Eric
> >
> > ---------- Forwarded message ----------
> > Date: Fri, 7 Mar 2003 11:23:31 -0600 (CST)
> > From: Eric Smith <[email protected]>
> > To: [email protected]
> > Subject: modeling
> >
> > Help!
> >
> > I'm having trouble figuring out how much of a loading coil I need using
> > NF.  Could one of you run these numbers for me?
> >
> > My antenna is 30' from the ground to the top -- 22 gauge.
> > My tophat has 4 x 4' radials (5/16" dia) with a 4 x 22 gauge skirts at 1',
> > 2', 3', and 4' radius.
> > Target frequency is 185 kHz.
> >
> > I was successful modeling this thing before I built it -- now I don't know
> > what I'm doing wrong.  I want to build the loading coil, but I can't
> > figure out how much inductance I need.
> >
> > Thanks in advance for your help,
> > Eric
> 
> 
> 
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