tom wrote:

"Clifford Heath" wrote in message
...
Passive repeater. Put a panel antenna on the roof attached by co-ax to a
radiating element underneath the tin.

Clifford Heath.

Be sure you do the math beforehand.

This actually works. You wouldn't think so, but it does.
Of course only when there is good signal where you place the outside
antenna and poor signal inside, but that can be the case in such metal-can
buildings.