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The mast consists of 8 hot dip galvanized S355 steel sections with a width of 600 mm (1.98 ft) center to center of the frame legs. For more info on the mechanics of the mast please refer to the mast design page.
The height of the mast is 49 m (161 ft) above ground including the foundation. The guying radii is 32 m (105 ft). The mast is guyed in two levels using 68 mm2 steel wires tensioned to 10% of the breaking load.
The second 7 MHz yagi was installed at the beginning of September 2003. For information of the 7 MHz antennas please refer to the antenna page.
For information of the 28 MHz antennas please refer to the antenna page.
Below are some photos showing the installation!
Connection of jumpers to the 7/8" cable. The grounding cables are fitted to the connectors.
The boom of the second 3-el yagi was assembled in October 2002 but the winter prevented the erection of the antenna. The antenna was installed at the beginning of September 2003.
The base of Mast 3.
Another view of the base of Mast 3.
The loop formed by the cables to allow for 360 degree rotation of the mast..
Like the other masts the first 2 section was erected several weeks prior to the erection of the entire mast.
Each of the 6-el yagis were checked and tested prior to installation. First each individually and then 2 by 2. It took quite some time to line up each part of the stack.
Once the elements were fitted each antenna was hoisted to 10m height and tested.
Installation of the second 3-el yagi for 7 MHz.
Mast 3 as seen from Mast 1.