I guess my question wasn't clear, Max.

Even though your space is limited, the type of antenna you install
should be informed if possible by the type of operating you intend to
do. If DX is very important to you (and here, DX could mean one or two
thousand miles) you might want to work in some vertically polarized
radiation, such as with an inverted L or a T (vertical with capacitive
element on top) or a sloper. How tall are those maple trees?

It may even be possible to load the R7 on 80 with a switched loading
coil at the base. Wouldn't win any efficiency awards I'm sure. But
thinking about it is pretty cheap and even fun.

Chuck

MD wrote:
"chuck" wrote in message
news
Can you tell us what you want to do with it?


I have an R7 up for 40-10. Two maple trees on the property, one in the front
yard and one in the back but not far enough apart for an 80m dipole. The
trees runs east west over the house. I would prefer to run the dipole north
south, using the backyard maple for a support. The lot at this point is 66'
wide. One other thing to mention I don't think I can run ladder line or open
wire feeder into the house. I am pretty much limited to coax.

Thanks for the help,

Max

"chuck" wrote in message
ink.net...
I guess my question wasn't clear, Max.

Even though your space is limited, the type of antenna you install
should be informed if possible by the type of operating you intend to
do. If DX is very important to you (and here, DX could mean one or two
thousand miles) you might want to work in some vertically polarized
radiation, such as with an inverted L or a T (vertical with capacitive
element on top) or a sloper. How tall are those maple trees?

It may even be possible to load the R7 on 80 with a switched loading
coil at the base. Wouldn't win any efficiency awards I'm sure. But
thinking about it is pretty cheap and even fun.

Chuck

The maple trees are pretty tall, getting up in there high enough would be a
challenge. I may try 66' per side and see how high in the tree I have to go
to get the angle out to the corners of the lot. Would a direct feed with 50
ohm coax be suitable with a choke balun? Mainly interested in local comms
out to 3 or 400 miles.

Max