John Smith wrote:
Dave Heil wrote:

...
I don't care to imagine concrete blocks dangling in space or screen
door closers affixed to trees, Mike.

Dave K8MN

Neither do I.

I'd imagine a pulley in the tree which a rope attached to the antenna to
be tensioned was attached. This rope would then run to a weight on the
ground to where the HD door closers were attached.

I mean, I'd imagine that as opposed to beginning to pour concrete to
which an eyebolt with a insufficient deadman held into the concrete!

Try to keep your anonymous sniping to yourself, CB "John". There's *no*
dead man in the concrete. It is simply a bolt, a large fender washer
and a nut. It is supporting only a wire antenna. It isn't guying a
tower. A 3/8", three or four inch long bolt in concrete is more than
sufficient for the job. Read my earlier post where I suggest a window
sash weight. These are cast iron with a loop at the top end. Both have
been used without failure for decades. No Rube Goldberg devices were
necessary.

Dave K8MN