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Make towers

Details
Written by: Jari Ojala
Category: Uncategorised
Published: 10 December 2022
Hits: 775

 

A radio amateur uses various rotating towers.

Heights 12-48 m.

 

 

 

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 30m high mast elements

 

2013-07-01_17.50.37.jpg   2013-07-01_17.50.52.jpg TOP-rotator plates

 

 

 

Build antennas

Details
Written by: Jari Ojala
Category: Uncategorised
Published: 10 December 2022
Hits: 1304

 

 

 

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Antenna building is as child play;)

 

 

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Or cold and hard work...

 

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 15 m 5-element yagi antenna, with delta-match feed

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 delta1.jpg

 

 

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 Antenna tuning

 

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 About 3000 u-bolts for assembling the antennas

Solar power plant

Details
Written by: Jari Ojala
Category: Uncategorised
Published: 10 December 2022
Hits: 352

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.  

 

Real time info from SolarWeb

 

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Income and energy per month.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Ready for production !!

Building an antenna in midwinter

Details
Written by: Jari Ojala
Category: Uncategorised
Published: 09 December 2022
Hits: 690

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HAM Projects

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VIDEO

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  • Solder LDMOS
  • 42 m tower goes up
  • Ice droppin by drone PART I
  • Ice droppin by drone PART II

Other projects

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  • 22 kW diesel generator project

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