Re: NEC-LIST: Insulator ratings on MF Mast Radiator

Good day,

> I tried two different methods to determine the voltage across isolators:
>
> 1) The currents in the structure were extracted from the NEC2 output to
> form a multiport admittance matrix. The matrix was inverted numerically
> to obtain the equivalent impedance matrix. It appears to me to be the
> simplest method, but I needed a check.

Please forgive my ingnorance, but as an none scientific educated nec2
user, I ask myself: couldn't one simply multiply the segment current
(for those containing the load) with the load impedance to get the
voltage across the load ?

Or is this just the thing 'inverting a multiport impedance matrix' does ?

After loading the attached nec example file, setting an input power of 1W
and looking at the load voltages listed on the Main form (use show->EX/LD
info) of my home-brew 4nec2 program (http://home.ict.nl/~arivoors/),
I get almost but not exactly the same voltage values. Most of them agree,
but some are different.

I would like to know of this is a valid way of looking at the nec2 output
data.

Thanks in advance,

Arie Voors.

p.s. thanks also for this nice and interesting posting.

-- 
(Please ignore the advertisements below)GMX DSL-Flatrate 0,- Euro* - Überall, wo DSL verfügbar ist!
NEU: Jetzt bis zu 16.000 kBit/s! http://www.gmx.net/de/go/dsl
-- 
The NEC-List mailing list
NEC-List_at_robomod.net
http://www.robomod.net/mailman/listinfo/nec-list