TT Gang...
Relocating QTH here in VA BCH...
Have plans on 20 sq feet of antenna on my 2" .25 walled 18 
foot chrome moly mast....
What is a "safe" amount of mast to have IN the tower?  It is 
45G with of course double thrust bearing install.
Currently, I have it configured with 8 feet in the 
tower...and it has been on 25G for two years, one hurricane 
(100 + mph winds)....but would like to put as much ABOVE the 
  tower safely as possible....ideally for me about 15 
feet......But I don't feel the "numbers" support only 3 feet 
in the tower...and looks like 4 would be the minimum...
But if the current 8 is best to keep the "forces" where the 
"have" been...then so be it....But with the cost of CM 
mast...<smiling> would like to use as much as I can!!!!
Thanks!
Jose - N4BAA
_______________________________________________
See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
 
 |