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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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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 three years approx. 4000 €.
Energy has been so expensive in 2022 that the value of the return was
a record, around 2200 EUR.
Income and energy per month.
Ready for production !!