The main antenna system is a 7/7/7el stack on 14m booms, at 38/25/12m in the military tower which is rotatable. There is also a 6/6el low stack at 15/9.5m and a 6el monobander @46m.
There is a plan to remove the 6/6el low stack and instead add a 7el monobander sitting at 60m height in the moskojärvi tower. This to be great in marginal conditions and aurora E openings.
10m antennas
The main antenna system is a 7/7/7el stack on 14m booms, at 38/25/12m in the military tower which is rotatable. There is also a 6/6el low stack at 15/9.5m and a 6el monobander @46m.
There is a plan to remove the 6/6el low stack and instead add a 7el monobander sitting at 60m height in the moskojärvi tower. This to be great in marginal conditions and aurora E openings.
10m stack
10m stack
10m stack another view
HFTA stack response towards JA
HFTA stack response towards VK
HFTA stack response towards Europe
HFTA stack response towards South America
HFTA stack response towards USA (295 deg)
HFTA stack response towards USA (305 deg)
HFTA stack response towards USA (315 deg)
HFTA stack response towards USA (325 deg)
Construction pictures of this antenna:
Part 1
Part 2
Part 3
Part 4
Part 5
Part 6
Part 7