[TowerTalk] Custom antenna design

[KM5VI]

Extrapolation of scaled dimensions is not a good assumption in this case...
see link (and others)....  or model one.

http://www.qsl.net/4s7ab/broadbandhexbeam40m4s7ab.htm

KM5VI


-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of
Michael Tope
Sent: Wednesday, September 18, 2013 9:37 AM
To: Charlie Gallo
Cc: towertalk at contesting.com
Subject: Re: [TowerTalk] Custom antenna design

Charlie,

I think the columns are shifted to the left by one because the 40 meter
version is speculative (i.e. there is no actual model number assigned). 
Just by rough scaling, it wouldn't make sense for the 40 meter version to
have a 40ft turning radius. A 40 meter version with a 19ft turning radius
and weight of 40 lbs is a much more sensible extrapolation when you look at
the 30 meter and 20 meter specs.

73, Mike W4EF..................

On 9/18/2013 5:29 AM, Charlie Gallo wrote:
> On 9/18/2013 Michael Tope wrote:
>
>> I think the 20 meter "Hex-Beam" has a 9.4 ft turning radius, so it 
>> stands to reason that a 40 meter version could (with a little 
>> tweaking) be made to fit inside an 18ft circle. In fact if you go to 
>> the "Traffie Technology" specs page you see what looks to be an 
>> incomplete entry for a 40 meter monoband version presumably with a 
>> 19ft turning radius and weighing 40 lbs:
>> ttp://www.hexbeam.com/specs.shtml
>> 73 Mike W4EF.................
> Except they list the 40m as having a 40 ft turning radius...
>
>
>
>


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