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SKA1_LOW precursor, AAVS1 station clearing

Submitter: Pieter Benthem
Description: The Aperture Array Verification System (AAVS1) is getting into shape, as can be seen in the picture above. It shows the ground clearings of a single, 35 meter diameter station, ready to host 256 SKALA antennas.
The centre post marks the position of the Antenna Power and Interface Unit (APIU), providing power to all antennas and transporting the RF signal (using RFoF technology) to the Central Processing Facility.

AAVS1 will verify the end-to-end signal path of the Low Frequency Aperture Array (LFAA) from antenna to the output of the station beamformer. AAVS1 shall include all the components required to receive low frequency electromagnetic signals and to correlate the beams formed. LFAA is a major system and part of the Low Telescope which will be constructed in Western Australia at the Murchison Radio Observatory (MRO) as part of the first phase of the SKA Observatory. AAVS1 will also be built at the MRO, inside the current MWA footprint.
Copyright: Pieter Benthem
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