[TenTec] Station and AC Ground

[Mike Hyder -N4NT-]

Problem with this (as I understand the convoluted explanation) is where 
instead of Zero ohms, you have 0.1 or 0.2 ohms.  Then take a lightning 
strike with a current of maybe 10,000 amps and you will see that there can 
be quite a voltage drop.

Mike N4NT

----- Original Message ----- 
From: "JAMES BRASSELL" <jimbrass at bellsouth.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Tuesday, November 29, 2005 9:37 AM
Subject: [TenTec] Station and AC Ground


Hey, All.

Just a quick observation and question.  I have read many posts on this site 
about having the station and AC mains grounds tied together.  For my 
observation, when you have a separate station ground (and I do; a good one) 
and all pieces of equipment are tied to that ground and the ground wire from 
the AC plug is tied to the equipment chassis then you have effectively tied 
the AC mains ground to the station ground.  I have measured from the AC 
mains ground to the station ground and it is zero ohms, with no voltage (to 
the microvolt between them).  I have looked in the equipment and the AC 
ground is tied directly to the chassis, not through a board.  My question 
is, if the equipment is grounded and you have a good AC mains ground is that 
not tying the mains and station grounds together?  I could see where one 
might have a problem if the ground in the equipment was achieved through a 
circuit board and the equipment was not otherwise grounded.  I feed two 
verticals, GAP Titan and
 Voyager, and run 1500 watts into them on a regular basis without any RF 
problems.  What say you?

Jim, K4ZMV