[TowerTalk] Antenna to Shack Ground Connection

[Jim Thomson]

Date: Sun, 1 Feb 2015 20:44:30 -0500
From: Hans Hammarquist via TowerTalk <towertalk at contesting.com>
To: towertalk at contesting.com
Subject: [TowerTalk]   Antenna to Shack Ground Connection

##  The braid wont  handle the current......so u still require 2 ga bare, stranded copper wire between base of tower and shacks  spg.   The 2 ga stranded, bare wire is buried in the dirt aprx 1-3 feet. 
Then its in direct contact with the dirt.   Even if the braid of  coax used, the coax would still have to be bonded to both top and bottom of the tower.   It still wouldn’t work, since the braid is covered 
with insulation..and not in contact with the soil.  Around here, the electrical inspector  will go crazy if you don’t  install the bare, stranded, min 2 ga  copper wire between base of tower and shacks spg. 

Jim  VE7RF




Brian,


Yes, you are right all the shield of the feed-lines are connected (or should be connected) tween the tower and the shack ground. The risk of getting the shields fused (burned off) is reduced with a separate grounding wire between the tower and the shack. Large enough your shack might even survive a direct hit.


Again, the ground wire should be run close to the feed lines in order to minimize induced current from near strikes.


Hans - N2JFS



-----Original Message-----
From: Brian Carling <bcarling at cfl.rr.com>
To: Bill Turner <dezrat at outlook.com>
Cc: Towertalk <towertalk at contesting.com>
Sent: Fri, Jan 30, 2015 11:10 pm
Subject: Re: [TowerTalk] Fwd:  Antenna to Shack Ground Connection


Most of us have that already in the form of out coax feedline's outer conductor. 
Typically this is grounded at the antenna and also in the shack. Am I right?

Best regards - Brian Carling
AF4K Crystals Co.
117 Sterling Pine St.
Sanford, FL 32773

Tel: +USA 321-262-5471