And:
Run a rope and pulley system so that you can orient the rope towards a desired location (i.e., Greenville). If you make the rope 80ft long and 40ft high, you have an equivalent 80ft boom.Originally Posted by kb2crk
Using the widely available formulas for Yagi design, cut a reflector and 5-8 directors. The driven element should be of folded dipole construction (300 ohm twin lead is ideal) and can be fed with a delta or double gamma match.
All elements get insulators on each end. The top insulators are tied to the "boom rope" with smaller pieces of rope. Helps to lay the whole thing out on the ground and get the spacing correct before hoisting the boom rope.
Once the boom rope is secured, the lower insulators/ropes can be staked and tied off then the feedline routed towards the reflector side - or 90 degrees to the plane of the elements themselves.
What you'll end up with RE/DE and 7 directors is >13dBi forward gain and F/S-F/B ratios in excess of 30dB. This can exceed the performance of the old Wilson Super Laser series - even the 8x8 configuration.
If I lived in the middle of a forest with the proper complement of trees, this is exactly the antenna system I'd use on 11M. Multiple arrays pointed at the bigger population centers and interchanges. A lot less expensive than a 60-80ft stand of Rohn 55 plus the aforementioned Super Laser.
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