[TowerTalk] Hy-Gain 205BA

[kc4pe]

We never really saw a kick out of the 5 vs the 4, ...The four comes in 
multi setups..max gain, max rear, max side. compromise 
performance.....Take your pick but there was not a real whole lot of 
added performance either way..but the Lawson still reigns very high, 44 
foot boom, 4 elements.  I took his theory and modeled a 5 element. dual 
drive, 60 foot boom for 20 meters at 144 feet up....it works, but it's 
too good, too sharp..but it opens and closes the band...

Bill ...KC4PE
http://www.kc4pe.com/amateurshack.htm

On 8/26/2015 2:22 PM, Mike Ryan wrote:
> Some years ago I used the design by Jim Lawson, W2PV (who wrote a book 
> on yagi antenna designs) extending the boom to something around 40ft. 
> as I recall. This was a 'bit long' for 2" boom and I suffered some 
> failures.  I originally wanted to stack them along and atop on a 160ft 
> tower but used extended 204ba antennas instead. However, there has no 
> doubt been much printed about the 205ba as it was such a good antenna 
> by itself. Good luck and let us know what you decide to do. -Mike
>
> -----Original Message----- From: luciano_nachif at yahoo.comvia TowerTalk
> Sent: Wednesday, August 26, 2015 2:08 PM
> To: towertalk at contesting.com
> Subject: [TowerTalk] Hy-Gain 205BA
>
> I have bought a brand new Hy-Gain 205BA which had been sitting in a 
> garage for the last years. It is packed as it was shipped.
>
> Has someone on this list tried to optimize it and/or upgrade it to a 6 
> elements yagi? I'm willing to extend the boom length to accommodate 
> the 4th director.
>
> Your comments and thoughts are appreciated.
>
> Thanks in advance,
>
> Luciano Gasparini PT9KK
>
> Sent from my HTC
>
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