A relatively electrically quiet location for HF monitoring in the daytime period is at Westerfolds' Park, Templestowe, adjacent to the Yarra River, in Melbourne's outer east.
Good signals were observed at that location on October 17 2015 in our mid-afternoon window, in the 11 MHz spectrum.
The dominant transmission modes were long path from Europe, Africa and the Middle east, and short path from the Americas and Asia.
This summary of notable occupancies may be of interest, using the Eton E5 and two metres of antenna, from the Porter St Picnic Reserve, across the UT time span 0415 to 0430.
11560 MOLDOVA R. Miraya, Kishinev, Arabic
11580 USA TOM-WRMI
11600 FRANCE R. Denge Kurdistane, Issoudun Kurdish
11620 INDIA Urdu
11625 VATICAN VR-SMG Tigrinya
11645 VATICAN R. Tamazuj via SMG, Sudanese
11660 IRAN Arabic
11670 INDIA Persian
11700 FRANCE RFI-Issoudun French
11710 ARGENTINA RAE Chinese
11715 INDIA Arabic
11735 N. KOREA Spanish
11750 CHINA CNR1
11760 IRAN Azeri
11780 IRAN English to 0420* (co-channel Brazil)
11790 CHINA Xinjiang PBS Urumqi Chinese