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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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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
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- Written by: Jari Ojala
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Solar power plant project.
Power 12,5 kWp
Total costs of the project are 8500 €
Planned repayment period 14 years. Realized income for four years approx. 5000 €.
Energy has been so expensive in 2022 that the value of the return was
a record, around 2000 EUR.
Income and energy per month.
Ready for production !!