[SMCARA] G5RV antenna installation

Dave Q quickskys at gmail.com
Sun Sep 21 13:53:21 EDT 2014


All,

I plan to permanently hang my Optimized G5RV dipole tomorrow.

I have three large white oaks almost exactly inline but they are on a
slope.  If I were to tie a string at ground level of the highest tree and
run it level to the farthest tree there is an 11' drop crossing the center
tree at 4 feet.  The center insulator will be at 45' where I already have a
pulley installed.  I've made stand-offs from 4" PVC pipe by cutting 1"
rings.  These will be screwed to the tree and the ladder line attached to
them.  The ends will be attached to the trees with pulleys and homemade
"window weights" to allow for tree movement, falling branches, ice/snow etc.

I have a 30' extension ladder so should be able to get the ends at
least/about 20 to 25' off the ground.  The trees lie in an East to West
orientation.  Would rather it be more N to S but it is what it is.  I will
be also installing one of the 31' S9s.

Questions:
Do the ends need to be the same distance from the ground in order to
maintain the angle of each wire the same?  For instance, can one angle be
45 degrees and the other 60 degrees or other combinations?

The instructions say to maintain a an included angle of 160 -170 degrees
for best performance but I'd like more of an omni directional pattern.
What angle would you shoot for?

What would you do considering both of the antennas?

Any thoughts and advice greatly appreciated.

73
Dave - W3DLQ


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