[ADXA] Woof woof (silent woof)
Charles McKenzie
kf5tl at outlook.com
Sun Jan 11 09:33:46 EST 2026
That’s half the fun in dxing, putting the station together!!!
73
KF5TL
Sent from my iPhone
> On Jan 10, 2026, at 9:41 PM, Jon W. Reynolds via ADXA <adxa at mailman.qth.net> wrote:
>
>
> Long Tower Saga update:
>
> 2 out of 3 woofs (I'm guessing). The Saturday tower fairy came out and we were able to accomplish much more work on the tower project! We now have a rotor that turns the antennas from the shack!
>
> We still have a little bit of work to do in the tri-band A3S. Because I'm new to tower work, I prioritized things a little backwards. I got the antenna assembled and up (while the help was in town), before I checked the swr, and it is a little off. I also tried not to crimp the antenna boom with the u-bolts, and they are loose enough to sway a little. So...there is still some work to be done, but I have the rotor system up and working.
>
> The SWR Readings as I show with the Amazon nano vna:
>
> 20m 14.000-14.350
> SWR 3.77-2.61 wedge shape (high to low)
>
> 15m 21.000-21.450
> SWR 3.45-3.68 slight wedge shape (low to high)
>
> 10m 28.000-29.700
> SWR 1.13-1.75 (slight wave shape)
>
> My plan is to suspend the antenna from above on the mast pole, unbolt the antenna from the mast, and rotate it to 90° so that I can reach the loose elements. I'm thinking to address the swr problems, I'll extend the tips of the of the reflector and driven element 1/2" and re- mount everything and check the results.
>
> I'm open to suggestions if anyone is forthcoming with knowledge/technique or experience with a cushcraft A3S and tuning it a little.
>
> 73
> Jon
> KI5UCZ
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