Ultra-Wideband Low

Murriyang, our Parkes radio telescope, is being upgraded with a suite of ultra-wide bandwidth receivers. The ultra-wide bandwidth low-frequency receiver (UWL), which was installed on the telescope with its associated signal processing systems and commissioned during 2018, has the following properties:

• Frequency range: 704 to 4032 MHz
• Tsys ~ 20K across most of the band

This receiver is being used for pulsar timing and searching, follow-up of repeating fast radio bursts, studies of HI and spectral lines across the band as well as for continuum mapping surveys.

More details of the UWL are given in An ultra-wideband dielectrically loaded quad-ridged feed horn for radio astronomy, presented by Dunning et al. at the 2015 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications.

Ultra-Wideband mid and high

We have commenced a project to extend the receiver fleet with mid and high (UWM-H) wide-bandwidth receivers by ~2027:

• Frequency range for the mid-frequency receiver: 4160 to 15680 MHz
• Frequency range for the high-frequency receiver: 15680 to 27072 MHz (and up to 32300 with an analogue output for spacecraft tracking)
• The expected system performance will range from Tsys ~20 K around 5GHz increasing to ~40K at 15 GHz and closer to ~100 K above 20 GHz.