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Friday, December 13, 2013

Propagation Research - December 12 2013

Continuing good propagation is observed here in Melbourne around our sunrise window in the 9 MHz band, with strong short path signals noted from Europe, Africa, the Middle East and Asia following the darkness zone from the west.

Of particular note were broadcasts from Swaziland (TWR-Africa), UAE (RTI-Dhabbaya and VOA),and Vatican (VOA-SMG).

Wideband interference from All India Radio in the 9945 to 9955 block continues to blanket other services using that frequency range.

This is a summary of spectrum occupancy at the top end of this band, as intercepted on December 12 2013 in the time span 1900 to 1930.

9770 CHINA CRI-Kashi Cantonese
9780 VATICAN VOA (R. Darfur) via SMG Sudanese to 1930*
9800 PHILS VOA-Tinang Korean
9815 GERMANY VOA (R. Darfur) via Nauen Sudanese to 1930*
9825 PHILS PBS via Tinang Tagalog to 1930*
9835 MALAYSIA RTM-Kajang, mega signal Malay
9860 UAE VOA-Dhabbaya Tigrinya to 1930*
9870 S. ARABIA Arabic
9875 N. KOREA English
9895 UAE RTI-Dhabbaya French
9910 Jamming intended for the Open Radio political station (Korean)
9940 SWAZILAND TWR-Africa via Manzini Lingala
9950 INDIA DRM service extending from 9945 to 9955
9965 THAILAND R.Thailand Udon English
9980 USA WWCR English) long path)


  1. good results here Bob as usual, which radio were you using this time?