Rick wrote:
>>> 4NEC2 files have a .nec extension.  So if EZNEC can import them you would 
>>> be ok.
Well, not quite.  Yes, 4nec2 files have a .nec extension but they typically do 
not follow standard NEC conventions.  For example, Paul's posted file contains 
these lines:
SY len = 350    'Element Length
SY ang = 67     'Included Angle
SY hgt = 80     'Height AGL
SY x = len*sin(ang/2), y = len*cos(ang/2)       'Cartesian Angle Computation
GW      1       40      -x      y       hgt     -1      0       hgt     #14
"SY" is not a standard NEC card type and "GW" cards using non-numeric fields 
are not standard.  So EZNEC treats this .nec file as having an invalid format.
>>> The other way around works (4NEC2 imports .EZ files).
That also has a caution to it.  4nec2 will import simple .ez files but will not 
recognize some of the things found in newer .ez files such as wire insulation 
specs, transformers (baluns), or L-networks.
Dan, AC6LA
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