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Wednesday, April 26, 2017

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
 
 
 
 
 
 
 
 
 
 

Thursday, April 20, 2017

Monitoring Research 9 MHz spectrum

 
 
Solar activity remains.low – 10.4 cm Flux down to 80, Daily Equivalent SS number dropped to 20.
 
This is a summary of notable frequency occupancies in the 9 MHz band, researched on April 18, 2017, across the time span 2100 to 2200, from here in Melbourne.
 
2100 to 2130
==========
9350 USA WWCR English (long path)
9490 KUWAIT VOA French
9565 USA R. Marti Greenville Spanish (long path)
9655 FRANCE RTM-Issoudin Arabic
9870 S. ARABIA Arabic
9935 GREECE VOG Greek (parallel 9420)
 
2130 to 2200
==========
9320 PHILS VOA-Tinang Cambodian
9410 CHINA CRI-Kashi Portuguese *2200
9505 USA TOM-WHRI English *2200 (long path)
9535 CHINA CRI-Xian Japanese
9590 CHINA CRI-Beijing English
9650 N. KOREA VOK Japanese
9805 S. KOREA KBS Indonesian
9845 PHILS VOA-Tinang Chinese
9980 USA WWCR English (long path)
 
NOTE – many 9 MHz channels are now used by CRI and CNR in this time period, too numerous and not representing significantly notable propagation, not shown here!

Thursday, March 30, 2017

Shortwave Notes

 
The A17 Transmission started on March 17, 2017, and several hundred frequency changes have been introduced for international broadcasters.
 
There has been a massive migration to the lower frequencies for long-haul multi-hop propagation on frequencies below 14 MHz across darkness or partial darkness paths, due to continuing very low solar activity as Sunspot Cycle 24 passes through its final phase.
 
This is is a summary of notable frequency occupancies as intercepted here in Melbourne on March 29, 2017, between 1900 and 2000, dominated by short (darkness) path transmissions from Asia, Europe, Africa and the Middle East.
 
1930-2000
========
 
5860 KUWAIT R. Farda, Persian
5875 THAILAND VOA-Udon Korean
5910 ROMANIA Serbian
5945 IRAN Italian to 1950*
5950 ETHIOPIA V. of Tigray Revolution, Tigrinya
6010 JAPAN NHK-Yamata Japanese
6090 ETHIOPIA R. Amhara, Aramaic
6170 GERMANY VOA-Biblis Kurdish
7235 ENGLAND IBRA-Woofferton African
 
1900-1930
========
 
9380 INDIA National
9390 THAILAND R. Thailand Udon English
9400 BULGARIA WRMI-Sofia
9410 UAE BBC-Dhabbaya English
9500 ROMANIA Romanian
9535 GERMANY AWR-Nauen Arabic
9835 MALAYSIA RTM-Kajang domestic
9850 GERMANY AWR-Nauen Tachilet
 
11600 BULGARIA TOM-Sofia English
11720 GERMANY IBB-Biblis E. European
11750 CHINA  CRI-Jinhua Portuguese
11790 GERMANY AWR-Nauen African
11800 GERMANY AWR-Nauen Arabic
 
 
 
 

Shortwave Closures

VATICAN
SW transmissions in English to Asia from the Vatican Radio were closed down on March 24, 2017. Hindi, Tamil and Malayalam continue to broadcast on SW as usual. The Vatican Radio announced in its website that ALL SW services for all areas are being progressively shut down/

ALBANIA
Radio Tirana has closed down all of its SW transmissions, effective March 26, 2017. The only SW operations from Albania are the brokered relays of CRI.


Wednesday, March 8, 2017

Shortwave Challenge!

 
Here is another Challenge!
 
This time we explore the 9 MHz and 11 MHz spectrum between 1830 and 1900, which currently provide many opportunities for frequency usage analysis and propagation.
 
This challenge was on March 7, 2017, from Melbourne.
 
9325 EGYPT Hausa
9370 THAILAND Deewa via Udon Pashto
9380 INDIA National network
9390 THAILAND R. Thailand Thai
9410 UAE BBC Dhabbaya English
9420 GREECE Greek
9425 N. KOREA VOK German
9445 INDIA English
9485 ENGLAND VOA-Woofferton Amharic
9515 KOREA REP. KBS-Kimjae English
9555 S. ARABIA Arabic
9600 FRANCE DW-Issoudin Hausa
9615 CHINA CRI-Urumqi German
9635 ENGLAND IBRA MEDIA via Woofferton Arabic
9675 S. ARABIA Turkish
9700 BULGARIA TOM-Sofia English
9730 VIETNAM French
9740 S. KOREA KBS-Kimjae Spanish
9755 VATICAN VOA-SMG Amharic
9765 GERMANY NHK-Nauen Japanese
9800 FRANCE V. of Gospel, Issoudin Fulfulde
9820 E ENGLAND Deewa-Woofferton Pashto
9850 GERMANY AWR-Nauen Tachelt
 

Thursday, March 2, 2017

Shortwave Challenge!

 
Shortwave Challenge!
 
 
Very low levels of solar activity continue, meaning that the available "propagation windows" for frequencies above about 13 MHz have been compressed for long-haul multi-hop transmission paths crossing darkness or semi-darkness regions.
.
The challenge is to determine the optimum window for your location for the higher frequency bands!
 
Here in Melbourne, the 9 MHz band currently is "open" for the full 24 hours, yielding many chances for orderly analysis and research into frequency usage
 
This is a summary of notable occupancies between 2230 and 2300 on March 1, 2017.
 
9490 IRAN Morning service in Indonesian
9445 N. KOREA VOK Chinese
9405 PHILS FEBC Chinese
9535 MADAGASCAR KNLS morning service in Chinese, to Asia, using short (darkness) path mode over Indian Ocean
9735 TAIWAN RTI Japanese
9805 KOREA REP. KBS-Kimjae Indonesian
9890 KUWAIT RFA Tibetan, using short (darkness) transmission path over India
9900 TAIWAN RTI Chinese