Do you believe any ham will go to that level or can afford to do so. There
are less expensive methods that work equally well if and only if done
correctly.
73
Bob, K4TAX
----- Original Message -----
From: "Clayton Brantley via TenTec" <tentec@contesting.com>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Wednesday, May 14, 2014 7:52 PM
Subject: Re: [TenTec] Lightning protection
Cecil, I have to agree with you on this. I did a 7 channel trunking system
for our plant in Oak Ridge, TN
and we had copper sheet on the floor of the shack, a halo loop made from 1"
copper pipe around the
ceiling with copper strap bonding to the floor and 4/0 copper wire thru each
corner of the building to the
ground mat out side. A 1/4 inch copper "window" for all cables to
enter/leave the shack.
Needless to say, we ran 24/7 without any problems.
Clayton N4EV
On Wednesday, May 14, 2014 8:34 PM, Bob McGraw - K4TAX <RMcGraw@Blomand.net>
wrote:
Cecil:
I don't have a problem with your concept as long as the outside work is done
first and correct. That says the outside system must be bonded to the AC
mains.
Failure to do this will then tie the outside system to the equipment inside
which is connected to the AC mains. Thus the path of destruction is through
the radio equipment, regardless if it is ON or OFF, antenna connected or
disconnected.
73
Bob, K4TAX
----- Original Message -----
From: "Cecil" <chacuff@cableone.net>
To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
Sent: Wednesday, May 14, 2014 7:20 PM
Subject: Re: [TenTec] Lightning protection
Sent from my iPad
On May 14, 2014, at 6:38 PM, "Bob McGraw - K4TAX" <RMcGraw@Blomand.net>
wrote:
Ground? Someone said use one for lightning protection. Why? All
lightning protection should be OUTSIDE of the house and never inside. I
operate from the 2nd floor of the house. No ground from the station to
the outside is ever.
73
Bob, K4TAX
I like you Bob......
But we will never agree on that one....
Too many documents and industry standards say and do otherwise....
First line of defense is definitely outside but not continuing that
protection to a shack central point ground system with all equipment
bonded too it and the building electrical safety ground system is only
doing half the job...
It's the system design used in every Cellular/PCS/SCADA/Public Safety
radio system out there....systems that have to run 24/7 lightning or not,
all usually with 200'+ tower heights.
I'm sure Jim will hammer me next.....
Sorry guys...it's my training and vocation...building and maintaining
these systems....why wouldn't one carry that philosophy as much as is
practical into our stations...I have with excellent results. My tower
gets popped a couple times a year and no damage to anything.
Of course this has nothing to do with the Eagle RFI problem...but I felt
compelled to comment. (Changed the title so as to not hijack the thread)
Dead horse ....I know...
Cecil
K5DL
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