Thanks' Zack. I can simulate the 40-2CD using AO. Bob says he has AO, YO,
and TA. So have I. Frankly, I don't think that it's as important to Bob to
optimize the antenna to a particular frequency or do any of the other stuff
that AO and YO are capable as it is to take the free-space ".pf" file
produced by the 40-2CD at, or near the optimum frequency, and then see what
kind of vertical lobe shape he can get out of it if he simulates moving it
around on his terrain profile in "TA". Then he'll just assemble the antenna
according to the instructions and mount it at some nearly optimum height per
TA.
----- Original Message -----
From: "Zack Widup" <w9sz@prairienet.org>
To: "CQ-Contest" <cq-contest@contesting.com>
Cc: "Robert Shohet" <kq2m@earthlink.net>
Sent: Tuesday, September 04, 2007 11:24 AM
Subject: Re: [CQ-Contest] Tower guying questions and Antennasoftware
questions
>I found the manual with dimensions for the 402BA on-line. I can make a YO
> file for that antenna based on the manual.
>
> The 402CD was an inductively-loaded "shorty" beam and as such can't be
> simulated with YO as far as I know. You could do it with MiniNEC or NEC,
> though.
>
> 73, Zack W9SZ
>
>
> On Mon, 3 Sep 2007, Leigh S. Jones, KR6X wrote:
>
>> I'm going to suggest that you are referring to the Hygain 402BA, as I
>> believe the model 402-CD is a Cushcraft product. I have YO and AO here
>> as
>> well as TA. I don't think I have a model for the Hygain 402BA or
>> Cushcraft
>> 402-CD antenna, however. I could model the radiation patterns using
>> known
>> element lengths and optimize the inductance for F/B. Would that help?
>>
>> ----- Original Message -----
>> From: "Robert Shohet" <kq2m@earthlink.net>
>>
>>> Hi,
>>>
>>> I would appreciate some help from the reflector as I
>>> locate items some items necessary for rebuilding my station.
>>>
>>> 2) Can someone please email me the YO antenna plot file
>>> for the Hygain 40-2CD? K6STI did not have that file and
>>> I need it for some antenna/terrain modeling.
>>>
> _______________________________________________
> CQ-Contest mailing list
> CQ-Contest@contesting.com
> http://lists.contesting.com/mailman/listinfo/cq-contest
>
_______________________________________________
CQ-Contest mailing list
CQ-Contest@contesting.com
http://lists.contesting.com/mailman/listinfo/cq-contest
|