One comment Dan, you have defined a finite Sommerfeld/Norton ground. In
NEC2 the antenna cannot touch the ground unless it is perfect (Unlike EZnec,
with its "Minninec" ground). 2.2204e-16 is, from NEC's point of view, zero.
At the moment I don't know how to address the other problems, but may play
with it later. I have also noticed the problem with the frequencies.

There are instructions provided with the program, but are buried as "Word",
and text, documents in the 4Nec2 folder,and in the sub-folder "exe". The
NEC user manual is also useful, but will only help with NEC code structure.

Frank


"dansawyeror" wrote in message
...
All,

I am experimenting with 4nec2 and these are an elementary questions. I
have been able to create a 'new' model, see below, using the geometry
editor. Here are few questions:

1. when the model loads it shows 4 MHz instead of 144.

2. ground has been set but does not show in the display

3. I am trying to make the middle segment a coil. How is a coil created?
When inserting a helix 4nec2 errors with a divide by zero error? The steps
would be helpful.

4. Adding a source does not seem to take. I am not sure how how to add a
source? How to determine where it is placed?

These are basic, but any help would be appreciated.

Thanks - Dan

CE
GW 1 3 0.05 0 2.2204e-16 0.05 0
0.1 1.29409e-3
GW 2 3 0.05 0 0.225 0.05 0 0.125
1.29409e-3
GW 3 1 0.05 0 0.125 0.05 0 0.1
1.29409e-3
GE 1
EK
GN 2 0 0 0 13 6.e-3
FR 0 1 0 0 144 0
EN