3RN Melbourne, VIC was heard and identified for the first time on 621 kHz, a frequency usually dominated by co-channel Radio Botswana. The station was received in Fish Hoek on the 27th May with the SRF-M37V and 220 m BOG.
Graham from the ABC kindly verified my reception report and attached a coverage map.
Google Earth Image of the 3RN transmitter site situated in the north-western suburbs of Melbourne at 37 43 19S / 144 46 58E. 3RN broadcasts with a power of 50kW on a 215m mast (one of the few remaining giant masts in Australia).