On 13 Jul 2005 13:21:56 -0700, wrote:

Hi, all --

Looking for guidance: I want to do some virtual experimenting
with small transmitting loops before I start welding up a few of
the real things. Questions:

* Is NEC, or one of its children, good for this sort of work?

* Do I need NEC/4, or will NEC/2 do?

* Can models handle curved conductors? If I have to enter a
zillion straight segments, OK, but I'd rather not.

* Will the model handle lumped impedances, e.g. the matching
capacitor at the far side of the loop?

* Does NEC take Q issues (conductor resistance, capacitor
leakage) into account?

* Can I usefully model over ground (ideal and real)? I have read
claims that STLs aren't affected by height-above-terrain, and I
rather suspect that it simply hasn't been convenient to hang the
contraptions half a lambda in the air, and the writers are just
whistling past the antenna range.

...I guess that's about enough topics to start a thread. Thanks.

-- Dai N7DAI

By your questions it seems that you've no experience modeling (that's
meant to be decretory). There is a wealth of information on antenna
modeling using NEC at: http://www.cebik.com/radio.html

I suggest you explore that site as you should be able for find answers
to all or most of your questions above.

73
Danny, K6MHE

email: k6mheatarrldotnet
http://users.adelphia.net/~k6mhe/