Spiderbeam 18m (60ft) fiberglass poles are built very similar to our well proven 12m HD fiberglass poles, yet carefully designed to maintain low weight and perfect balance.
The pole starts out very rugged at the bottom (73mm diameter / 2mm wall thickness) and still has 40mm diameter / 1.5mm wall thickness at 10m height. Upper sections are slim and light (1mm wall thickness), preventing the pole from becoming top-heavy and keeping it perfectly balanced. A special reinforcing winding technique - several layers of fiberglass are wound in alternating direction (criss/cross winding) - provides greatly increased lateral and linear strength
These poles are perfect for building all kinds of wire antennas, especially 80/160m wire GP or inverted L antennas. They can also easily support temporary lightweight 1 element Quad or Delta loops for 40-10m, and dipoles for all bands, especially when used with open wire feedline. (Most baluns would be somewhat heavy). 4-6 poles could be used to build lightweight beams for 40 or 80m.
The best (and cheapest) wire to use for building such wire antennas (verticals, loops, dipoles etc.) is AWG 18 (= 1mm diameter) enameled copper wire or similar.
Pole installation: Either pull up one segment at a time with the pole in a vertical position, or one person can easily "walk up" an extended pole by pressing the bottom against a rock, tree, car or ground anchor or having a second person hold it. Once the pole is in vertical position it can easily be moved around. Fix the bottom to a ground anchor and attach guy lines at 2 levels. 1mm or 2mm diameter Kevlar rope (also sold by Spiderbeam®)is very suitable for guy lines. To complete the installation we strongly recommend using our rubber padded stainless steel clamp kit to safely secure the telescoping elements from slipping down. For a pole of this large size clamps are a better solution than using tape only.
This clamp kit is included with the purchase of the 60 ft pole. Guy belts sold separately.
Click this link for a .pdf graphic document on guying the poles
Specifications:
- fully extracted length 60 ft (18m)
- collapsed transportation length 5 ft 7 inches (1.7m)
- weight 15 lbs (6.8 kg)
- bottom diameter 2 13/16 inches (73mm)
- top diameter 1/8 inch (4mm)
- fiberglass wall thickness 1mm-2mm
- number of segments 12
- pole material black fiberglass, UV protected, specially reinforced multi layer winding
