[TowerTalk] Coax/Rotor Cable on the outside or inside of thetower

[Larry Banks]

Is there some kind of stainless steel shoulder washer?  This would solve the 
coax  barrel <=> copper ground lug problem.

73 -- Larry -- W1DYJ




----- Original Message ----- 
From: "Jim W7RY" <jimw7ry at gmail.com>
To: "Ron W8RJL" <youngron at verizon.net>; "John Hudson" 
<jd_hudson at comcast.net>; <towertalk at contesting.com>
Sent: Thursday, March 29, 2012 9:51 PM
Subject: Re: [TowerTalk] Coax/Rotor Cable on the outside or inside of 
thetower


> Stainless is not the fix all for galvanic reactions/issues. The barrel
> itself would still be in contact with the aluminum.
>
> 73
> Jim W7RY
>
>
> --------------------------------------------------
> From: "Ron W8RJL" <youngron at verizon.net>
> Sent: Thursday, March 29, 2012 6:46 PM
> To: "Jim W7RY" <jimw7ry at gmail.com>; "John Hudson" <jd_hudson at comcast.net>;
> <towertalk at contesting.com>
> Subject: Re: [TowerTalk] Coax/Rotor Cable on the outside or inside 
> ofthetower> Why not use two stainless washers between the coax feed thru 
> nuts and the
> lug. That should solve the dissimilar metal problem you mention.
>> 73 Ron W8RJL
>>
>> ----- Original Message ----- 
>> From: "Jim W7RY" <jimw7ry at gmail.com>
>> To: "John Hudson" <jd_hudson at comcast.net>; <towertalk at contesting.com>
>> Sent: Thursday, March 29, 2012 9:32 PM
>> Subject: Re: [TowerTalk] Coax/Rotor Cable on the outside or inside of
>> thetower
>>
>>
>>> Too much dissimilar metal. Good idea though.
>>> Thanks for sharing.
>>> 73
>>> Jim W7RY
>>>
>>>
>>> --------------------------------------------------
>>> From: "John Hudson" <jd_hudson at comcast.net>
>>> Sent: Thursday, March 29, 2012 4:56 PM
>>> To: <towertalk at contesting.com>
>>> Subject: Re: [TowerTalk] Coax/Rotor Cable on the outside or inside of
>>> thetower
>>>
>>>> This may not be what you would want to use but a simple way to ground
>>>> your
>>>> coax shield is to use a large ground lug out of a panel box. One of our
>>>> club
>>>> members uses this
>>>> http://www.w4nja.org/HomeBrew/W4KU-Coax-Ground-20091206.htm
>>>>
>>>> Simple, neat and did I say simple!
>>>>
>>>> John
>>>> KO4XJ
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: towertalk-bounces at contesting.com
>>>> [mailto:towertalk-bounces at contesting.com] On Behalf Of K8RI
>>>> Sent: Thursday, March 29, 2012 6:25 PM
>>>> To: towertalk at contesting.com
>>>> Subject: Re: [TowerTalk] Coax/Rotor Cable on the outside or inside of
>>>> the
>>>> tower
>>>>
>>>> On 3/29/2012 7:00 PM, Gene Smar wrote:
>>>>> Richard:
>>>>>
>>>>>       To help ground your coax cable runs onto the tower at the top 
>>>>> and
>>>>> bottom, as Jim suggests, you can fab up some homebrew cable ground
>>>>> clamps.
>>>>> I wrote up a description at
>>>>> http://lists.contesting.com/archives//html/Towertalk/2002-07/msg00698.html
>>>> .
>>>>> Joe KC2TN took photos of his
>>>>> http://lists.contesting.com/archives//html/Towertalk/2007-10/msg00356.html
>>>> .
>>>>>
>>>> I just use a bulkhead connector, top and botton.
>>>>
>>>> There may be a tiny bit more loss, but it's simple.
>>>>
>>>> 73
>>>>
>>>> Roger (K8RI)
>>>>
>>>>
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>>
>>
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