[Lowfer] modeling (fwd)

[Eric Smith]

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 <eric@willow.nutstreet.net>
To: lowfer@mailman.qth.net
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