"Richard Clark" wrote
...
On Wed, 28 Jul 2010 09:05:34 +0200, "Szczepan Bialek"
wrote:
To radiate what?

Your radio waves.

To radiate what?

Jeff wrote: " Depends entirely on what the insulation is composed of!!"

Glass is an insulator but it is transparent for the light frequencies.

Does exist an insulation (reasonably thick) which is not transparent for the
radio-amateur frequencies?
S*