[TowerTalk] Metal roof

[Jim Lux]

On 8/5/11 11:44 AM, Pete Smith wrote:
> Without any direct experience, other than a trap vertical on a 20 x 40
> metal roof made up of 4x8 metal sheets, I'd say a vertical would work
> fine, but anything else nearby could be adversely affected.  I also
> wonder, at least in theory, if you wouldn't risk imperfect electrical
> connections between shingles becoming harmonic-generating diodes, in the
> presence of a strong RF field.
>

But... what about all the harmonic generating diodes from the chicken 
wire under the stucco, or the woven mesh of a chain link fence.

I think the harmonics & diodes thing pops up more in situations where 
you have multiple transmitters in a single location, generating spurs 
that get into receivers at that same location.