On Sun, 19 Jul 2009 09:13:23 -0700, Jeff Liebermann
wrote:

On Sun, 19 Jul 2009 09:44:57 -0400, "Perry Aynum"
wrote:

I had a Dish installed on my roof. I also have a Terk XM antenna that would
get a good signal where the Dish is.

Can I mount the XM antenna on the Dish bracket without causing any signal
interference?

As long as the XM antenna is not in FRONT of the dish, blocking the
dishes view of the sky, it might work. The problem is that mounting
the XM antenna behind the dish is going to make the dish block out a
large part of the sky. That's not very useful. Since the dish
usually overhangs the top of the mounting pipe, there's no way to add
an extension pipe to install the XM antenna on top. This isn't going
to work.

Actually, it will work. I don't remember where I saw it or the
manufacturer, but someone makes an 'L' shaped mount that piggybacks
onto the clamp that locks the dish to the mounting pole. This will
allow placing small antenna slightly above and behind the dish.

As is usual, this has limitations. In a wind it places an increased
stress on the mounting pole.

PlainBill

Methinks your best bet is to get the stock Terk outoor mounting
contraption:
http://www.xm-radio-satellite.com/index.asp?PageAction=VIEWPROD&ProdID=2004
and install it somewhere away from the dish.