Richard wrote:

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
| | |
| |

I'm wondering about the spacings, A, B, C, and D.

A, spacing between bottom of the discone and the boom of 2 m yagi.

B, spacing between boom of 2m yagi and boom of marine band yagi.

C, spacing between boom of marine band yagi and boom of FM yagi.

D, spacing between boom of FM yago and top of rotator.

As for the mast, I'm thinking what about 1.5" steel tube.

As for rotator. No idea what model I'd need.

Any thoughts? Am I trying to be too ambitious? I could leave out the
marine yagi if I had to.

Thanks.

Rich.

Check to make sure there are no ordnances against attaching structures
to chimneys. You would do better with a tripod mount on the roof.

Hope this helps...

Irv VE6BP
--
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Diagnosed Type II Diabetes March 5 2001
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58"/43"(!)/44" (already lower too!)
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--------------------
Irv Finkleman,
Grampa/Ex-Navy/Old Fart/Ham Radio VE6BP
Calgary, Alberta, Canada