On 2014-05-14 12:39, John Johnson wrote: > On 2014-05-14 11:40, Dan Hergott - newsletter email wrote: re: TV antenna >> I want to strap the support pipe to our chimney. > > Discussed at length (ad nausem?) here: > http://www.physicsforums.com/showthread.php?t=470395 another: http://forums.qrz.com/archive/index.php/t-186389.html jsquared