Three-quarters of contracts now awarded to deliver SKA telescopes

BY MATTHEW TAYLOR (SKAO)

Creating an airstrip, laying an 800 km dark fibre network, and cryogenically cooling key array components are among recent contracts awarded for the SKA telescopes

Contracts worth a total €130m have been agreed since July to deliver infrastructure and technologies for SKA-Mid and SKA-Low, and include important works being undertaken by local contractors.

In the Murchison, Western Australia’s Central Earthmoving Company Pty Ltd, also known as Centrals, will build a main road from the Central Processing Facility to the public road network along an alignment that minimises disturbance to heritage zones.

Centrals will also build an emergency airstrip that will meet the requirements of Australia’s famous Royal Flying Doctor Service, complementing a separate contract awarded to St John Ambulance WA for providing on-site emergency medical care.

In the Karoo, pan-African digital infrastructure experts, Liquid Intelligent Technologies, will design, build and operate an 800 km underground dark fibre link between Beaufort West and Cape Town to transmit the 20 Tb per second live data stream coming from the SKA-Mid telescope for correlation. Also at the SKA-Mid site, Qamcom Research and Technology founded by researchers at Sweden’s Chalmers University of Technology will provide Single Pixel Feed (SPF) receivers for the SKA-Mid dishes to digitise radio frequency output for onward transfer to the central signal processor.

A number of further contracts concerning the SKA-Mid receivers have been awarded, including Oxford Cryosystems Ltd providing cryogenic cooling technologies on one of the SPF bands.

Elsewhere, South Africa’s Emcom wireless will install an emergency low band VHF digital mobile system across the SKA-Mid telescope’s core and spiral arms, and Perth-based AVI will deliver SMART boxes providing power to SKA-Low’s antennas (see page 11).

SKAO Head of Procurement Services, Ian Hastings, said: “The pace of contract awards in the past few months reflects the hard work and diligence within the SKAO and our tenderers.

“Particularly encouraging is the work that is being undertaken by, or subcontracted to, local and Indigenous-owned firms, and the fact that our partners have enthusiastically come along on our ambition to hire as many local and Wajarri people as possible to work on the project.

“This and the number of international awards illustrates both the truly global nature of the SKAO and our strong local anchoring within our neighbouring communities, and takes us another step closer to seeing dishes and antennas rising in the Karoo and Murchison.”