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nagging problems: 1) The 40m driven could not have been attached (pre-built) at F12. The milled out holes in the boom-element plate where not large enough to accomodate the u-bolt. They would accomodate the 20m u-bolt. Not even close! I noticed the reflector holes had been drilled out larger, by the looks of it with a hand drill. I drilled them out and have it working. 2) The supplied mast portion of the boom-mast plate holes for the supplied u-bolts did not fit (2"). Since it is just Al, I fixed this with a file and it should be ok. 3) The boom truss goes right thru the linar load wires on the 40m reflector. The truss actually rubs on the welded on Al support for the 40m insulator. I am concerned about this wearing thru and breaking the boom truss. As well as tuning problems this may cause. 4) The instructions say that the linear load wire is stranded. After searching and not finding any stranded wire, I came across a package which had solid wire. The wire was shipped in about an 8" diameter coil. The coil when uncoiled really wanted to maintain its coil shape. No problem materials change, I understand. As stiff as it was, I was concerned about it being brittle. The very first linear load wire I put on (by hand, no tools), when wrapping the wire back around the insulator, the wire snapped right off. So now the big problem is, do I have the correct linear load wire? What do I do for the broken wire? Are the other ones prone to this same failure. I don't want this thing to break while up in the air. Does it matter what the material is for this task? Can I use different material? How will a different material effect the loading (tuning)? XXTowers is going to be here on Tues (3-Oct) to erect things, can F12 ship me replacement wire for the defective wire in time? If not, what do I use as a substitute that I can obtain locally? There have been a host of other problems with the order and such. These are just the major points. I have to say that so far I am less than impressed and I hope that once these are up in the air, they are more robust and trouble free than they have been to assemble. Anyone have any thoughts? I will of course contact F12 first thing Monday morning on obtaining replace parts and remedies. :-( Tim K9TM -------------------------------------------- Force12Talk mailing list provided as a service by Force 12 Antennas, Inc. Force 12 Web site: http://www.qth.com/force12 Submissions: send to Force12Talk@qth.com To unsubscribe: send a blank e-mail to Force12Talk-leave@qth.com Force12Talk Message Archive: http://www.qth.com/force12/list/force12talk For problems with the list, contact n4zr@qth.com |
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