[50mhz] Another Cushcraft Mod?

Tue Jun 30 13:45:19 EDT 2009

Carl,
I had a 16 element collinear on 2m that was originally W2NCF's in Cedar
Grove, New Jersey and it was a great performer!  I can only imagine what it
would be like to have one on 6m!  It was not a CushCraft, but entirely
homebrew.  It was moved on top of my subcompact car (heavily flagged) at
night about 2 miles to my home from his!

Can you point me to dimensions for this type of antenna and perhaps the 2m
one as well? 

Thanks & 73,
Gordon Beattie, W2TTT
201.314.6964

-----Original Message-----
From: 50mhz-bounces at mailman.qth.net [mailto:50mhz-bounces at mailman.qth.net]
On Behalf Of Carl
Sent: Tuesday, June 30, 2009 2:29 PM
To: Bill W5WVO; Bill Aycock; 50mhz at mailman.qth.net
Subject: Re: [50mhz] Another Cushcraft Mod?

Another CC design that is hard to improve on is their 16 el collinear. 
However since only 3 were built and Ive rescued and rebuilt  2 of them its a

moot point (-;

One was built for Sam Harris, W1FZJ, and the other for Wayne Green who Im 
sure is known to all.

CC wasnt the only company building 6M yagis by the seat of their pants. The 
Wilson M68, Hy Gain 66DX,  and short boom 11 el Telrex were all in need of 
improvements.

However with CC being just a long walk from here and HRO over in the next 
town, their local popularity is very high. Over the years there has been a 
steady flow of them brought in by owners for upgrades and tuning/testing. 
Getting extra elements, boom sections, etc, was as simple as driving up 
there.

Carl
KM1H

----- Original Message ----- 
From: "Bill W5WVO" <w5wvo at cybermesa.net>
To: "Carl" <km1h at jeremy.mv.com>; "Bill Aycock" <billaycock at centurytel.net>; 
<50mhz at mailman.qth.net>
Sent: Monday, June 29, 2009 11:24 PM
Subject: Re: [50mhz] Another Cushcraft Mod?

> There is not a whole lot you can do to a 3-element yagi. I've modeled the
> factory design of this antenna and tried to improve on it using YO, but as

> has
> been said, it represents a pretty good compromise of the various factors 
> out of
> the box. So I agree with Carl here. I wouldn't be inclined to mess with 
> it. Any
> small improvement you might make wouldn't be worth the trouble.
>
> Having said that, you have to believe that this state of optimization is 
> blind
> luck, since all the other Cushcraft 6m yagis can be significantly improved

> using
> computer-aided modeling and redesign.
>
> Bill W5WVO
>
>
> Carl wrote:
>> It will be interesting to see what you come up with.
>>
>> Thats another CC that I modeled when it came out and its just about
>> perfect out of the box. The 2-3dB F/R improvement probably isnt worth
>> the effort to make the changes.
>>
>> Carl
>> KM1H
>>
>> ----- Original Message -----
>> From: "Bill Aycock" <billaycock at centurytel.net>
>> To: <50mhz at mailman.qth.net>
>> Sent: Sunday, June 28, 2009 8:56 PM
>> Subject: [50mhz] Another Cushcraft Mod?
>>
>>
>>> Congrats to several who have improved the A50-5S, and those who
>>> helped.  I have an A50-3S, New in a box (Not the original, I shipped
>>> something else in it) I think I would like to model it, using EZNEC.
>>> I am capable of building the model, but if anyone has one, I am
>>> interested in saving the time. I will share my results.
>>> Anyone?
>>> Bill-W4BSG
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