[Towertalk] EZNEC 3.0 question

[Jan Erik Holm]

Problem with YO is that the calculating engine is far too simple,
you really have to be carefull with what you are doing.
In any case, I would not trust YO alone, I would confirm
my design on a program using the NEC calculating engine.

73 Jim SM2EKM
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Jiri Sanda wrote:

> Can someone tell me what is the improvement from YO 6.55 to YO 7.0.
>
> Is it already able to model OWA type Yagis - i.e. would it model 
> correctly the close elements ? What impedance you get if you model 
> NW3Z design. 6.55 gives you something like 35 Ohms while 
> mathematically excellent but user unfriendly EM-broadcast professional 
> gives you 48 Ohms which is the reality.
>
> 73 !
>
> Jiri
> OK1RI
>
> Bill Tippett wrote:
>
>> VE6WZ wrote:
>>
>>> I want to plot preformance curves on one plot vs frequency: eg:  
>>> SWR, F/B and forward gain.
>>>
>>
>>         Steve, if you plan on doing anything with Yagi's, I would
>> highly recommend K6STI's Yagi Optimizer (YO7) over EZNEC 3.0.  I have
>> both and YO7 is light-years ahead of EZNEC for modeling Yagi's.  
>> EZNEC is more versatile for wire antennnas, etc. but don't even think 
>> twice about it if you are mainly interested in Yagi's!  K6STI can be 
>> contacted at k6sti@n2.net and I believe YO7 is now around $100.  It 
>> will do exactly
>> what you described above!  Here are a couple of screens which gives 
>> you an idea what it will do:
>>
>>        http://users.vnet.net/btippett/yagi_optimizer_7_0.htm
>>
>>                                                 73,  Bill  W4ZV
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