"M. van Wijk" pa5mwremove all(incl) between @home.nl wrote in message
...
Hello,

I just moved to a new location. My backyard has some 20 trees spread
around
at a distance of 5 to max 10mtrs between each of them.
I would like to opt for a full size 40mtr(7Mhz) vertical and have
(only)the
2 following options her:

1) full size 1/4 wire vertical inside fishing pole, mounted in a tree at a
foot height between 7 and 10mtrs from ground level. Some 4 elevated
radials
will be added.

2) full size 1/4 wire vertical at ground level, parallel to a tree at a
distance of 0.5 till max 1 mtr. Ground screen will be some 16 pcs of wire
buried in the surrounding ground.



I have no clue about any effects of trees here. They are not pine trees.
There are lots of other parameters in the whole picture, but the trees is
a
totally unkown factor for me.

Please share me your experiences.

Thanks in advance.

'73 Mark, PA5MW


Mark,
I had a 40 m 1/4 vertical hanging from a tree branch. Feedpoint was about 8
meters above ground with 4 radials. On the average, performance was equal to
the 40 m dipole at 15 meters. It was about 3 meters from the tree trunk. If
you are going to have buried, or ground mounted radials, you would need a
lot more than 4. Oh, BTW, the tree is 25 m tall.

Tam/WB2TT