How about just adding a second underground pipe or conduit ?
Keep what you got and add the second for expansion.
73,
Jon
KD5SFA
On Sun, Dec 8, 2013 at 8:51 PM, Steven H Sawyers (na0ia)
<steve@sawyers.org>wrote:
> Under ground is better for lightning protection. The feed lines and
> control lines, need to go to the base of the tower, through a lightning
> arrestor at the base of the tower), then to the shack. If they come off the
> tower high, then they are at a portion of the whole lightning potential.
>
> Elevated lines of any kind are subject to deer with antlers snagging them.
>
> de na0ia
>
>
> At 06:46 PM 12/8/2013, Jorge Diez - CX6VM wrote:
>
>> Hello
>>
>>
>>
>> I'm about to review coaxials and control lines going from the towers to
>> the
>> shack.
>>
>> Actually I have below ground plastic pipes 100 mm (4 inches) so from tower
>> to shack they go underground. The last coaxial had to put on the land
>> because is not passing through the pipe.
>>
>> Now I'm thinking about doing the same, underground, but a larger pipe, or
>> other option might be to put the pipe OVER the ground at a height of
>> 1.50-1.90 m (60-75 inches) so I can walk under the pipe or at a height of
>> 0.40 meters (16 inches) to pass over the pipe and the grass can be cut
>> without problems.
>>
>>
>>
>> my question is about which is TECHNICALLY the best option, if there is a
>> technical benefit or about RFI to put them under ground. If there's no
>> advantage, is much easier to manage the cables OVER the ground
>>
>>
>>
>> Any feedback is appreciated
>>
>>
>>
>> Thanks in advance,
>>
>>
>>
>> 73,
>>
>> Jorge
>>
>> CX6VM/CW5W
>>
>> _______________________________________________
>>
>>
>>
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>
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