After a bit of sleuthing, I've learned a bit more about the antenna itself. I'm still awaiting time in my schedule to call Fluid Motion (makers of the SteppIR antenna) to learn specifics. However, in all likelihood, the rubber seals at the base of the fiberglass radomes that seals the joint between the radomes and the stepper motors and tapes, have deteriorated. These will all have to be replaced; they then need additional protection from the elements using heat-shrink tubing and copious application of UV-resistance electrical sealing tape (Scotch 33 or 88 tape) and UV-resistant ty-wraps.. It's possible that one or both of motor/tape units will need replacement at about $300 each. Assuming the worst, that's $600 for new parts and probably another $100 for new seals. One radome is lost and needs replacement, but I don't know what that will cost. These are not simply tubes because they contain a track in which the tapes run; I'll guess $150 but will have a more accurate figure soon.

If we choose to sell and replace this antenna with something else that covers the HF spectrum form 13-30 MHz, it would have to be a log periodic design. Tennadyne is a respected name and an antenna close to the characteristics of what we have will cost about $1100.

73,

Kim Elmore, N5OP
WX5NWC Trustee


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Kim Elmore, Ph

Kim Elmore, Ph.D. (Adj. Assoc. Prof., OU School of Meteorology, CCM, PP SEL/MEL/Glider, N5OP, 2nd Class Radiotelegraph, GROL)

"In theory there is no difference between theory and practice. But, in practice, there is." – Attributed to many people; it’s so true that it doesn’t matter who said it.