Guy
A lot depends on how high the antenna is and what kind of coax you have. The
more pull from the weight of the coax you have on the coax, the more
counterwieght is necessary. A forty pound concrete block would not hurt even
a Home Depot pulley. We are assuming the antenna is not constructed of nr 22
wire. An excellent table of break forces on wire can be found in the ARRL
handbook enabling the user to make a corresponing wire choice.
Also, common sense should be used in the choice of branches to use, as well
as not using wire to secure the pulley since it can cut through the branch as
the tree grows, possibly killing the branch.
Bill K4XS
|