HAM RADIO STATION OH8LQ

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Base bearings

Details
Written by: Jari Ojala
Category: Uncategorised
Published: 10 December 2022
Hits: 21460

 Various mast base bearings.

2013 10 23 14.17.09 

 

 

2013-10-23_14.17.26.jpg

Tapered roller bearing

 

 Old OH8QD thrust bearing repair parts

 

2015-07-06_12.55.40.jpg2015-07-06_12.56.46.jpg

Mast foundation and bearing. Attached to concrete

 

2015-07-06_12.57.48.jpg

 Assembled

 

Mastot.jpg

Ready mast sections

Rotators

Details
Written by: Jari Ojala
Category: Uncategorised
Published: 10 December 2022
Hits: 21793

 

 

 

 

rotator3.jpg

Rotator with junk yard worm gear

 

 rotator6.jpg

 Worm gear and motor

  

rotator7.jpg 

Wrom gear and axle to tower base 

 

 img_2665.jpg

 More engineering and development

 

 2014-02-08_12.19.56.jpg

 

 

 2015-03-14_14.55.22.jpg

 

 20200118_115236.jpg

Adjustment of two gears to each other

img_2661.jpg

 Axle inside of the tower

 

 rot_control1.jpg

Three phase motor control box

 

Guy rings

Details
Written by: Jari Ojala
Category: Uncategorised
Published: 10 December 2022
Hits: 21065

 

rings.jpg

 A traditional guy bearing, two plates and balls between the plates

 

 

 

laakeri_1.jpg

 Improved bearing of the first stage of development

 

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 Improved bearing of the second stage of development

  

IMG_20180804_191558.jpg

 Attaches to the mast with u-bolts

 

IMG_20180804_191605.jpg

 Standard ball bearings are used

 

 

Make towers

Details
Written by: Jari Ojala
Category: Uncategorised
Published: 10 December 2022
Hits: 12223

 

A radio amateur uses various rotating towers.

Heights 12-48 m.

 

 

 

oh8lq_mastot.jpg

 30m high mast elements

 

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

 

 

 

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VIDEO

  • Tower works at OH8LQ
  • Solder LDMOS
  • 42 m tower goes up
  • Ice droppin by drone PART I
  • Ice droppin by drone PART II
  • LDMOS amplifier GUI

Other projects

  • Solar power plant
  • 22 kW diesel generator project
  • Forest trailer
  • Harbor trailer

Presentations

  • LDMOS linear amplifiers (Finish)
  • SDR and CW Skimmer
  • OH Contests (kesäleiri 2022)