[TowerTalk] 402-CD Questions

[Bill Hider, N3RR]

I can't answer question #1 because I put my 40-2CDs in  ringrotors.

Question #2 though is very clear:  The measurement is from the OUTSIDE dimension
of EA to the OUTSIDE dimension of EG (not including the phenolic insulator,
metal-to-metal measurement). Another way to say this is as you put it in your
question: "...from the inside edge of the director
element to the inside edge of the reflector element..."  YES that's it!!

73,

Bill, N3RR



Bill Jackson wrote:

> Greetings,
>
> I have a couple of questions for the 402-CD experts out there.  I am in the
> process of the final assembly of a 402-CD with the W9RE upgrade kit to bring
> it into 100 MPH specification.
>
> Question #1:  With the installation of the 36" boom insert plus the heavier
> and larger boom to mast plate, is it still necessary to install the mast to
> boom struts?  I really question their structural integrity in the long run,
> since they are attached rigidly to the mast.  I can see where horizontal
> flexing of the boom may fatigue the aluminum tabs on the strut where they
> attach to the mast over time.  I would just as soon leave them off if
> possible.  It makes for a much cleaner installation.
>
> Question #2:  Is the director to reflector dimension of 21 ft., 11 in.,
> measured from the center line of the director element to the center line of
> the reflector element, or is measured from the inside edge of the director
> element to the inside edge of the reflector element?  On my copy of the
> installation instructions it is hard to tell, but it looks like they are
> dimensioning from the inside to inside.  This would put the elements awfully
> close to the ends of the boom.
>
> Thanks for the help!
>
> de Bill, K9RZ
> k9rz@probe.net
>
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