  The most sensitive method for detecting neutrinos at the very highest
energies is the lunar Cherenkov technique, which employs the Moon as a target
volume, using conventional radio telescopes to monitor it for nanosecond-scale
pulses of Cherenkov radiation from particle cascades in its regolith.
Multiple-antenna radio telescopes are difficult to effectively combine into a
single detector for this purpose, while single antennas are more susceptible to
false events from radio interference, which must be reliably excluded for a
credible detection to be made. We describe our progress in excluding such
interference in our observations with the single-antenna Parkes radio
telescope, and our most recent experiment (taking place the week before the
ICRC) using it in conjunction with the Australia Telescope Compact Array,
exploiting the advantages of both types of telescope.
