"Richard" wrote in message
...
I've no real experience of putting up antennas on the chimney of a house.

Obviously, I must not overload the chimney breast.

I'm thinking about putting up the following:


______ Discone
/ | \
__ / || \
A |
__ ___|x___ 5 ele.2m yagi
|
B | |
__ |x| 5 ele. marine yagi
| |
C |
| |
__ |x| 5 ele. FM yagi.
| |
D |
|
__ |
/ \ Rotator
/__\
|
| ______
| | | Chimney
| | |
| |


This is too ambitious, I realise that now. I think one 4 or 5 element FM or
2m yagi is about what would be acceptable. And the antenna not far above the
rotator.

Obviously, I must not overload the chimney breast.

Chimneys have surprisingly little structural strength.
I'd have more faith in a vent pipe mount. At least the pipe will bend,
instead of cracking.