[TowerTalk] from towers to shack

[Jim Lux]

On 12/8/13 4:46 PM, 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
>


Mechanical protection is what's good about underground.
There's not a lot of practical difference from an RFI standpoint (either 
can be good or bad..)