Expertise delivers complex and unforgiving large scale infrastructure re-purposing project.
Broadcast Australia on behalf of the Australian Government initiated an ambitious project to free up television spectrum to accommodate additional spectrum required by mobile phone networks across Australia.
This required execution of a detailed project program for hundreds of frequency channel changes and modifications to television antenna systems and towers conforming to an unforgiving timeline with field work being undertaken day and night.
Kordia were engaged by Broadcast Australia to undertake the installation of 81 sites, 14 of which were ‘high power’. Over the duration of the project, onsite works included:
Antenna and feeder installations;
Building works and associated infrastructure for new installations.
Broadcast Australia’s fixed deadline for the restack deployment was end of December 2014. Kordia managed to complete its final site one month prior to the end date.
There was no room for site delays as the restack of each individual site was critical in order to achieve the completion date with each site having its own unique engineering challenges.
Built 60 years ago, the television site at Mt Major near Shepparton in rural Victoria imposed one such challenge. The most intricate and demanding of all sites, Kordia was faced with the replacement of the existing 20m Antenna Stack on an 80m guyed mast.
Kordia were engaged to provide the structural analysis and design of the steel interface between the existing mast and the new antenna stacks. The analysis highlighted the need for significant increase of tensioning of the guy wires and upgrading of the existing guy anchor foundations which was included in Kordia’s scope.
Kordia delivered the works in accordance with requirements. The quality of the installation works was described as excellent and was approved by the Project Implementation Manager from Broadcast Australia. The broadcasting performance matched all specifications and test parameters.