Topband: (Non) Insulated Tower
Frederick W. Seibold
w9fws at arrl.net
Tue Dec 9 07:43:05 EST 2003
Joe, you will be re-inventing the Ufer ground with your plan. Ufer was an
engineer who designed the Army WW II-vintage ammunition bunkers. He did
this by having the re-bars all welded together for electrical
continuity. The soil moisture and the large surface of the concrete made
excellent contact (buried concrete stays moist in moist soil) so there
would be no sparking and explosions of ammo. Polyphaser recommends this
construction for tower foundations for better lightning suppression.
Surplus Sales has a big insulator you might try, check their list; I don't
know how many sections you are planning to use or what the vertical
download from your guying arrangement will be.
73
Fred W9FWS
More information about the Topband
mailing list