On Tue,9/2/2014 1:03 PM, Tim Shoppa wrote:
I am not using multi-hundred pound counterweights, but only 15 or so
pounds. I have been very satisfied with the big-wheel laundry line
pulleys from home depot:
Carl and I are concerned with 100# and 200# tension because we are
supporting more weight and between more distant rigging points. Remember
that I said I was supporting 80/40 fan dipoles at 120 ft built with #9
hard drawn copper, feeding them with RG11, and have a choke at the
feedpoint. That's a lot more weight than, for example, a 40M dipole at
40 ft fed with RG8X.
My determination of the required counterweight was almost by accident. I
bought some 6.5 gallon water jugs, filled them with dry sand, and ended
up with 90-100#. That turned out to be enough for my antennas. Others
may need more or less.
73, Jim K9YC
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