AUSTRALIAN SHORTWAVE JOURNAL

AUSTRALIAN SHORTWAVE RADIO JOURNAL

FOLLOWERS

Monday, February 21, 2011

Monitoring Notes and Propagation

Solar activity hid a shirt-duration peak on February 19, with the 10.7 cm
Flux reaching 125, and the SSN at 71. Since then, both indices have moved
downwards, now hovering around 109 (flux) and 50 (SSN).

This short-term peak didn't reveal any unusual propagation activity into
Melbourne.

The summer daytime propagation mode from Asia has now concluded, and the
daytime pattern is now exhibiting signs of our approaching winter, with
plenty of longpath activity from Europe, Middle East and Africa from early
afternoon.

Very few occupancies noted on frequencies above 13 MHz across our sunrise
period, 1800 to 2000, with MUFs/ALFs far too low to support transmission
from anywhere!

11 MHz band

Many signals have been noted in this band in the window 1900 to 2000,
dominated by shortpath from Europe, Africa and the Middle East. This summary
of February 20 will be of interest:

11615 S. AFRICA RN-Meyerton English 1920
11665 ASCENSION WYFR Yoruba 1900
11675 SRI LANKA VOA-Iranawela Tigrinya to 1930*
11740 ENGLAND VOA-Woofferton Somali to 1930*
11800 LIBYA V. of Africa, Sabrata, Hausa 1915
11845 ENGLAND RCI-Skelton French 1930
11860 IRAN VOIRI English *1930
11870 CANADA RCI-Sackville Arabic 1945
11935 INDIA AIR English *1945
11970 ABU DHABI R. Damaal, Dhabbaya, Somali 2000
11985 ARMENIA VOA-Yerevan French 1930
12040 PORTUGAL RDP Portuguese 1915
12070 ENGLAND DW-Woofferton German 1945

Regards from Melbourne!

Bob Padula

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