Hi Bryan

Am a little confused. Probably from working nights and not getting
enough sleep!

From your diagram you are trying to get a signal between the site that
has the 24dB gridpack and the "Outside building". You have done some
tests from the road and it seems to work.

I'd expect you biggest prohblem is the pine forest. They are excellent
for attenuating microwave signals! My gut feel is that you'll need a
gain antenna at the "outside building" as well as the existing one. This
very much depends on the pine tree density that I dont have any actual
attenuation figures on. I actually modelled a 2.4GHz link to my mother
in laws place about half a mile away through trees and with gridpacks at
each end. I had about 50dB of margin but was still worried about 100-200
yards of pine trees. If nothing else you'll get multipath interference
and may need to play with polarization.

If all else fails try bouncing the signal off the house. You might be
surprised!

Sorry I cant be more helpful. Pine needles and tree trunks I dont have
any figures on!

Cheers Bob

Bryan Martin wrote:
Well the downside is that I dont think I can pull off the reflector senerio
or complete line of site going over the tree's. At the end of this
powerline is someone else's lot so I can't place anything on or around that.
I only have permission to put the unit in the building located behind
someone's house. Ideally I would rather not have any external antenna's on
the building if at all possible to make the intrusion on property as light
as possible. Thats what brought me to my question. The building is just an
old cheap yard shed more than anything. It has power and 2 windows on the
back side facing the back of the lot. I hope to be able to place the
wireless unit close to the window which should help push the signal. If the
building was another 25-30 foot more to the right I might would have LOS to
it but that is also when you cross over onto someone elses land which is not
an option. As for seeing the signal I am almost completely positive the
grid antenna would be able to intersect the wireless signal at the end of
the powerline but I am unsure if that is enough to get the signal back?