Field Deployment of Prototype Antenna Tiles for the Mileura Widefield Array Low Frequency Demonstrator

Judd D. Bowman, David G. Barnes, Frank H. Briggs, Brian E. Corey, Merv J. Lynch, N. D. Ramesh Bhat, Roger J. Cappallo, Sheperd S. Doeleman, Brian J. Fanous, David Herne, Jacqueline N. Hewitt, Chris Johnston (+13 others)
2007 Astronomical Journal  
Experiments were performed with prototype antenna tiles for the Mileura Widefield Array--Low Frequency Demonstrator (MWA-LFD) to better understand the widefield, wideband properties of their design and to characterize the radio frequency interference (RFI) between 80 and 300 MHz at the site in Western Australia. Observations acquired during the six month deployment confirmed the predicted sensitivity of the antennas, sky-noise dominated system temperatures, and phase-coherent interferometric
more » ... interferometric measurements. The radio spectrum is remarkably free of strong terrestrial signals, with the exception of two narrow frequency bands allocated to satellite downlinks and rare bursts due to ground-based transmissions being scattered from aircraft and meteor trails. Results indicate the potential of the MWA-LFD to make significant achievements in its three key science objectives: epoch of reionziation science, heliospheric science, and radio transient detection.
doi:10.1086/511068 fatcat:nxfuats6onfedi7sc5eohp54si