Critical to the success of our project is the wide frequency coverage (704 to 4032 MHz) of the ultra-wide-bandwidth low-frequency receiver (UWL) at Parkes. No other radio observatory is equipped with the large fractional bandwidth and low system temperature of the UWL.

The UWL design includes a central dielectric spear made of quartz and teflon (to improve performance at high frequencies) and a corrugated skirt (to improve performance at low frequencies).

The signal from the UWL receiver is processed by the Medusa backend, which consists of nine server-class computers, each equipped with four NVIDIA Titan X GPUs and an array of Solid State Disks.

Incoming data are captured using a PSRDADA ring buffer, processed using the SPIP and DSPSR software libraries, and written to disk using the PSRFITS search-mode data file format.