Search String: Display: Description: Sort:

Results:

References: [ +from:mainhart@juno.com: 45 ]

Total 45 documents matching your query.

41. [TowerTalk] Newsline excerpt - 2000' Tower falls (score: 1)
Author: mainhart@juno.com (Richard T. Mainhart)
Date: Thu, 03 Apr 1997 20:05:51 EST
Believe it ... it happens. Iwo Jima, Volcano Island, Japan - 1965 During routine maintenance (replacing a corroded horizontal member) on a 1350' tower, the workers incorrectly calculated the force ve
/archives//html/Towertalk/1997-04/msg00099.html (10,585 bytes)

42. [TowerTalk] [Fwd: Antennas and their ratings(ssb:rtty:cw)] (score: 1)
Author: mainhart@juno.com (Richard T. Mainhart)
Date: Sat, 05 Apr 1997 18:24:14 EST
Sure ... the duty cycle. SSB (without horribly overdriven, overprocessed audio) has an approximate 30% duty cycle when taken over several minutes. CW has a somewhat higher duty cycle ... for the seri
/archives//html/Towertalk/1997-04/msg00155.html (8,362 bytes)

43. [TowerTalk] Lightning and ground systems (score: 1)
Author: mainhart@juno.com (Richard T. Mainhart)
Date: Sat, 12 Apr 1997 12:58:00 EDT
Charles and the group, The National Lightning Protection Institute has a wonderful seminar on lightning protection and suppression. They discuss the science of lightning events that fully explain the
/archives//html/Towertalk/1997-04/msg00354.html (8,990 bytes)

44. [TowerTalk] Re: Ground Rods & Ohms (score: 1)
Author: mainhart@juno.com (Richard T. Mainhart)
Date: Fri, 18 Apr 1997 20:23:12 EDT
On Thu, 17 Apr 1997 15:51:52 -0500 "eedwards@oppd.com" Clamps do not make as good a connection as exothermic welding (it isn't soldering at all). Clamps loosen due to a variety of reasons, cold flow
/archives//html/Towertalk/1997-04/msg00572.html (9,802 bytes)

45. [TowerTalk] Re: Ground Rods & Ohms (score: 1)
Author: mainhart@juno.com (Richard T. Mainhart)
Date: Fri, 18 Apr 1997 20:23:13 EDT
On Thu, 17 Apr 1997 23:24:45 -0400 Jamey Brookover One way that was taught at a Lightning Protection Seminar I attended was to rent (borrow, buy) a hammer drill. This is an electric (usually) drill u
/archives//html/Towertalk/1997-04/msg00573.html (10,867 bytes)

Current List: 41 - 45
Page: [1] [2] [3]
This search system is powered by Namazu