As part of the contract signed with Ministry of trade, tourism and telecommunications on the construction and design of infrastructure systems for the broadcast and distribution of digital television signals on the territory of the Republic of Serbia - Kodar engineering was involved in the manufacture and assembly of steel tower with height of 107.8 meters and a total weight of the steel structure 87.878,48 kg. The assembly was conducted on the mountain Jastrebac.

The following activities were included:
• Procurement of materials,
• Workshop production,
• Transportation and installation of a steel tower with height of 107,8m mark K123-35J,
• Corrosion protection of steel structure with hot dip galvanizing,
• Daily notification markings with red and white color,
• Procurement of materials, production of lightning protection and grounding system,
• Procurement of materials and equipment and assembly of systems for night marking of the tower in accordance to the terms and standards of civil aviation of Serbia.