[WVDXA] 6 M Beam
Clark L. Stewart
w8tn at ntelos.net
Fri Jul 11 20:06:06 PDT 2008
Charlie,
Wow, that's great! Hope the finalizing of the job all go smoothly
for you.
Here is a link to my 4-L yagi instructions. You could check the
tubing size on it and see if it is close. It is just a 12-foot boom but
that should get you in the ball park.
http://www.directivesystems.com/PDF/DS50-4.PDF
I think the 6-M band died today but that is the way it works. Maybe
tomorrow it will be back.
Let me know when you have it operational. I'll be glad to give you a
signal check or anything else I can do to help with your project.
Clark, W8TN
At 02:54 PM 7/11/2008 -0500, you wrote:
>Although technically I don't retire until July 31, as of yesterday I
>completed (hopefully) the last of my transitional activities at work, and
>can concentrate on other things now. The only thing remaining to do is
>drive to Cleveland and box up my papers. Good excuse to visit AES one
>more time next week.
>Clark: I will call them to see if they will replace or copy the HFTA CD
>that I broke from the Antenna Book. I heard zip back from ARRL; guess the
>wrong people were asked.
>
>I knew there was an antenna (yagi) here that was never assembled. Sometime
>or other, it came in a trade. Thought it was a small 3 el 10M, but it
>turns out to be a 12-4CD Cush Craft, which is a 4 el 12M yagi on an 18'
>boom. The box was dry rotted and tossed, but I think the hardware is all
>there. I am sorting it out now. I found the manual for it.
>
>If I can figure out the element lengths with the tubing taper, this should
>work on 6M. My thought is to do the driven element first, adjust it to
>resonance with the MFJ 259, then scale the reflector and directors from
>that. It uses a gamma match. Should be able to modify that to work as well.
>
>Anybody have any alternative ideas as to the best way to adjust this thing
>for 6? My antenna book had a program to calculate element lengths
>considering taper, but the CD got broken.
>
>I would appreciate any suggestions. Yes, I could (and likely will) buy a
>M2 6M7JHV, but this thing is here, I have no interest in 12M, and I should
>be able to throw this together this weekend. I would like to hear a JA on
>6M! HFTA says 10' will work great overlooking my steep hillside.
>
>73, Charlie N8RR
>
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