wrote:
Travis Jordan wrote:
wrote:
I am setting up a base station at my house. I will have a 440 mhz
yagi and a 2 meter ground plane antenna. I am trying to figure
out how to mount these on my roof. At the end of the house where
my chimney is would be perfect. It is a wood and viynle chimney,
not brick. It is not used. (No fires or gas logs.)

Would it be two much to mount a mast and two antennas on this?
I sometimes get high winds in the summer during thunder storms.

Assuming that the UHF yagi is a single yagi and not a big,
rotatable array you shouldn't have any problems with wind loading.
Just use a wrap-around chimney mount and a 10 foot mast. You can
even get these at *ugh* RadioShark.



http://www.radioshack.com/product.as...%5Fid=15%2D839


Even with two antennas on it? The two meter also? I have to soemhowe
keep these antennas at least 6 feet apart too.

Mount the ground plane on the top and the yagi just above the chimney. You
don't need 6' of separation with them mounted vertically. There is good
isolation below the ground plane due to the antenna pattern.