On 6/17/2010 11:05 AM, R.Scott wrote:
The problem with holding a few parameters constant is that you have to
accept whatever gain, patterns and such that come with the deal.

Well I did find plans for a 6 elem on a 17.5ft boom. The boom on the
old A4S is 18Ft. If I use the parts off my old A3
and my A4 I should be able to come up with all the parts for the 6
element. And its direct connect.


I wonder how far above the A4 the 6 meter needs to be. I only have a
5ft mast.

my DX800 rotor should handle it.



I have plans for a very good 6 element beam which is 15.53 feet from
reflector to D4. I could scale it to the element taper you have if needed.

It will not be a direct connect however, as those are almost never
optimal designs for gain, F/B or pattern. They are optimized to be 50
ohms with the rest subservient to that. Most of the designs I have
would be around 22 ohms so this one is probably in that area. A gamma
match is easy to make.

tom
K0TAR