All you need is a teflon like O-ring (spacer) to keep the barrel in the
center of the hole and use stainless flat washers.
Ron W8RJL
----- Original Message -----
From: "Larry Banks" <larryb.w1dyj@verizon.net>
To: <towertalk@contesting.com>
Sent: Thursday, March 29, 2012 9:58 PM
Subject: Re: [TowerTalk] Coax/Rotor Cable on the outside or inside of
thetower
> 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@gmail.com>
> To: "Ron W8RJL" <youngron@verizon.net>; "John Hudson"
> <jd_hudson@comcast.net>; <towertalk@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@verizon.net>
>> Sent: Thursday, March 29, 2012 6:46 PM
>> To: "Jim W7RY" <jimw7ry@gmail.com>; "John Hudson"
>> <jd_hudson@comcast.net>;
>> <towertalk@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@gmail.com>
>>> To: "John Hudson" <jd_hudson@comcast.net>; <towertalk@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@comcast.net>
>>>> Sent: Thursday, March 29, 2012 4:56 PM
>>>> To: <towertalk@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@contesting.com
>>>>> [mailto:towertalk-bounces@contesting.com] On Behalf Of K8RI
>>>>> Sent: Thursday, March 29, 2012 6:25 PM
>>>>> To: towertalk@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)
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> TowerTalk mailing list
>>>>> TowerTalk@contesting.com
>>>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>>>>
>>>>> _______________________________________________
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> TowerTalk mailing list
>>>>> TowerTalk@contesting.com
>>>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>>>
>>>> _______________________________________________
>>>>
>>>>
>>>>
>>>> _______________________________________________
>>>> TowerTalk mailing list
>>>> TowerTalk@contesting.com
>>>> http://lists.contesting.com/mailman/listinfo/towertalk
>>>>
>>>
>>>
>> _______________________________________________
>>
>>
>>
>> _______________________________________________
>> TowerTalk mailing list
>> TowerTalk@contesting.com
>> http://lists.contesting.com/mailman/listinfo/towertalk
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|