[TowerTalk] US tower and Ham IV - my experience
kr2q at optonline.net
kr2q at optonline.net
Sun Jan 9 17:48:06 EST 2005
Hi all:
the Ham IV fits fits nicely into the top section of my TX472 (should be the same top section as the US tower 55' job).
Here is the "logical" approach I took.
1. What is cost of Orion (which does fit but has issues of its own, already mentioned)
2. What is the cost of a "second" Ham IV?
3. What is the cost to repair a Ham IV (CATS or whomever you like) - typically the brake?
4. How likely is it that the Ham IV will get "ripped apart" in X years?
5. My decision: I now have two Ham IV's. One is always "ready" to get put into the tower if the one already in there fails. Swapping them is very easy. I have read that lots of you want to fold over tower to do that. I never have. I crank it up so the "rotor area" is exposed, I lock the sections (any of various methods work well), I lock the mast (after jacking it up an inch) and I slip out the old and slip in the new. I send the "bad one" for repair.
6. It will take me many decades of this process before I approach the cost of the Orion rotor.
I am turning a 4L 20 on a 32' boom and a 2L shorty 40 (402CD) along with a WARC dipole (cushcraft). There is lots of wind and ice here in NNJ at almost 1000' ASL. I never crank the tower down unless there is a hurricane forecast. So far (I've been here 20 years), I have had ONE repair.
>From a cost benefit analysis, the answer (for me) is obvious.
de Doug KR2Q
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