[TowerTalk] Three Questions for HDX-555 Tower Project

[Don Havlicek]

Comments inserted below:

Pat Chiles wrote:
> Hey guys could I tap you vast knowledge to to get some comments on the following.
> 
> 1.  How hard is it to drill chromolly?

One attempt here was a failure ... didn't possess correct bit hardness.

> 
> 2.  Comments from hams with experience as to whether or not the raising fixture will lift the tower from horizontal to verticle with a 21 ft chromolly mast (2 in., 140 lbs), a TH7, and a XM240 installed without the tower crashing back to mother earth?

Use a crane ... sign companies will do this for you at a very reasonable 
price.

> 
> 3.  Suggestions for keeping the antennas from slipping on the mast other than pinning?

The Hy-Gain boom-mast mount [cast aluminum with TEETH] works very well.

73
Don
N8DE

> 
> Thanks, Pat, K8PC 
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