Uncategorised
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- Written by: Jari Ojala
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Rotator with junk yard worm gear
Worm gear and motor
Wrom gear and axle to tower base
More engineering and development
Adjustment of two gears to each other
Axle inside of the tower
Three phase motor control box
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- Written by: Jari Ojala
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A traditional guy bearing, two plates and balls between the plates
Improved bearing of the first stage of development
Improved bearing of the second stage of development
Attaches to the mast with u-bolts
Standard ball bearings are used
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- Written by: Jari Ojala
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A radio amateur uses various rotating towers.
Heights 12-48 m.
30m high mast elements
TOP-rotator plates
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- Written by: Jari Ojala
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Antenna building is as child play;)
Or cold and hard work...
15 m 5-element yagi antenna, with delta-match feed
Antenna tuning
About 3000 u-bolts for assembling the antennas