Monitoring Research - 9 MHz and 11 MHz

 

Monitoring Research - 9 MHz and 11 MHz

 

Solar activity continues to be very low, and the latest data from the Dept of Meteorology (Sydney) is that the 10.7 cm solar radio flux has dropped to 81, and the daily Equivalent Smoothed Sunspot has fallen to 22. Those levels are  not expectged to change significantly.ly in the immediate future.

 

This means that propagation will be unreliable on long-haul, multi-hop transmission paths on frequencies above about 13 MHz for darkness or semi-darkness routes,  but is expected to be satisfactory on daylight paths.

 

Here in Melbourne, research of spectrum usage between 1830 and 1900 on April 25, 2017, revealed these notable occupancies on 9  MHz and 11 MHz, favouring short path (darkness) propagation from Europe, Asia, Africa and the Middle East.

 

9310 THAILAND R. Denge Kurdistane, Udon, Kurdish

9325 EGYPT Hausa

9390 THAILAND R. Thailand, Udon Thai

9420 GREECE Greek, parallel 9935

9425 N. KOREA VOK German

9445 INDIA English

9460 TURKEY Turkish

9500 ROMANIA Romanian

9515 KOREA REP. KBS-Kimjae, Korean

9525 INDONESIA VOI Indonesian

9600 CHINA CRI-Beijing English

9610 FRANCE R. Free Gambia, Issoudin English

9670 VATICAN VR-SMG Latin

9730 VIETNAM German

9740 KOREA REP. KBS-Kimjae Korean

9775 ROMANIA German

9785 TURKEY English

9835 MALAYSIA RTM-Kajang Malay

9870 S. ARABIA Arabic

9875 KOREA REP. VOK French

9885 VATICAN VOA-SMG French

9910 PHILS R. Filipinas Udon Tagalog

9965 MARIANAS RFA-Agignan Pt Chinese

 

11590 BULGARIA TOM-Kostinbrod English

11600 FRANCE R. Dengye Kurdistane, Issoudin Kurdish

11720 GERMANY VOA-Lampertheim, Amharic

11780 VATICAN VOA-SMG Kirundi

11945 FRANCE NHK-Issoudin Japanese

11955 AUSTRIA AWR-Moosbrunn Arabic

11975 ROMANIA Romanian

12150 GERMANY VOA (Deewa Radio) Pashto

 

Only one signal audible on 15 MHz -

 

15360 ENGLAND KBS-Woofferton Russian