Will,
> >I wonder if there is a way to "pin" the elements to the boom? I've
>done this
>on my 402CD by using a small SS machine screw through the clamp into the
>boom.
>It gives enough mechanical strength to keep the element aligned through the
>tramming and mounting process, and (so far) has kept the elements from being
>misaligned by the wind <
>
> The XM240 elements are pinned to the boom thats part of the no fuss hardware
>that I was alluding to.
>
><<In the shack the results were quite good. Using the CC dimensions for
>CW tuning (7025 according to CC) my SWR is 1.5 at 7.0, 1.2 (min.) at
>7055, and 2.0 at 7.175 using 5/2wl of 70 Ohm hardline, 27' 50 Ohm
>jumper at antenna, and 12' 50 Ohm jumper at shack end.>>
>
> > Compared to mine (and other) 402CDs, that sounds a bit narrow. Using an
>interpolation of the 402CD dimensions (I think this is what K7LXC calls his
>"secret" dimensions) I get 7.000 - 7.260 for 2:1 VSWR bandwidth. I assume
>that a tad shorter dimensions will stretch the bandwidth on this antenna as
>well, by raising the resonant frequency to about 7100 . (Chad, WZ - did you
>try that? <
>
> I did not give the 2 to 1 SWR point at the low freq end. I will measure
>tonite but I dont expect that kind of bandwidth.
>
> Fred
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