Following a sequence of shutdowns and extra engineering time starting
back on 24 March, we have now completed another major step in the
millimetre upgrade. At 4:01pm on 16 April we successfully measured
solid fringes at 12mm between all six ATCA antennas.
On 23 April we retuned the receivers to enable us to make the first observations of the ammonia lines near 24 GHz.