Is there any kind of program that makes the calculations a bit easier? If
I knew how to do the calculations, I could throw the formula into a
spreadsheet. What I need to do is calculate the inductance with the
parameters of cross sectional area, length, position on the ferrite rod,
number of turns, and permeability of the ferrite material itself.
I would like to throw these parameters into the spreadsheet/program, and
let the software calculate the inductance for me.

Pete

GM Pete. Sorry I had to be short on the telephone call, I had a doctors
appointment and was running late already. WRT your "antenna problem or
opportunity". I made an antenna for WWVB, and also use it for NAA at 24 KHz
by adding an additional cap across it for resonance down there. It's better
heads and shoulders than any ferrite antenna I ever made. 24 inch bicycle
wheel, spokes removed and a space made in the wheel continuity by sawing it
apart and adding a small block of wood. This also serves to hold an old ARCO
tuning cap of high value, and an instrumentation amplifier made from three
LM833 op amps.

A layer of shipping plastic foam between the rim and 120 turns of HPT wire
(#26 is a good number), then wrap it all up with a bit of squeezed on
aluminum wrap. (Also not continuous, and grounded at the spacer.)

With the inst, amp set for 60 dB of gain, I receive WWVB at about -40 dBm
into the 50 Ohm input to a HP selective Voltmeter. Best ever ferrite was
around 30 dB worse than this. I use it almost continuously for NAA
monitoring of SIDs, and they never go out of detection even in the basement
workshop.

Regards and happy New Year.
W4ZCB