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Thursday, October 23, 2014

SHORTWAVE RECEPTION AT WARRANDYTE STATE PARK

 
 
 
On an unusually warm day (35 degrees!) I went over to Warrandyte on the afternoon of October 2014, and set up the Eton E5 receiver and two metres of random antenna in the former gold-moaning precinct on Fifth Hill.
 
This is one of the few public parklands in Melbourne's outer suburbs which is still relatively free of power line pollution and I would like to share with you some monitoring notes made between 0300 and 0430 (local time 1400 to 1500).
 
Strangely, very little propagation on frequencies below about 10 MHz, but the higher frequencies were good!
 
Noteworthy items included:
 
12015 USA NHK via WHRI Spanish from 0400
17640 PALAU – T8WH, World Harvest Radio at Koror, English 0300
11875 IRAN – Arabic to 0420*
15170 S. ARABIA Arabic 0400
15690 GERMANY R. Farda Lampertheim Persian 0315
17690 SRI LANKA – Radio Azadi, Iranawila, Dari 0320
17895 S. ARABIA Arabic 0415
 
Image - Palau Islands
 
 

Wednesday, October 22, 2014

MONITORING RESEARCH - 11 MHZ SPECTRUM

 
Good propagation  continues during the Melbourne pre-sunrise window on 11 MHz.
 
The present A14 transmission period ends on October 26 2014, and a brand-new season (B14) will unfold!
This is a summary of notable signals intercepted on October 21 2014 in the 1730 to 1830 windows (0330-0430 local). Transmissions via short path from Europe, Middle East, Asia and Africa dominated.
 
1730-1800
 
]11600 BULGARIA BVB-Sofia Persian
11700 SWAZILAND TWR-Manzini Oromo
11710 INDIA Arabic
11750 SRI LANKA SLBC Sinhala
11760 GERMANY RFE-Lampertheim Russian
11845 VATICAN VOA-SMG English
 
1800-1830
 
11785 ASCENSION BBC French
11795 FRANCE RFI-Issoudin Russian
11800 GERMANY RFE-Biblis Russian
11905 UAE VOA-Dhabbaya Tigrinya
11955 AUSTRIA AWR-Moosbrunn Arabic
11965 IRAN Swahili to 1817*
11975 ROMANIA RRI Romanian
12025 INDIA Malayalam to 1830*
12045 RWANDA DW-Kigali Hausa
12080 FRANCE VOA-Issoudin Amharic
12140 SRI LANKA VOA-Iranawila Amharic
 
 

Sunday, October 19, 2014

SPECTRUM REPORT - 11 MHZ BAND

 
Good signals this morning on 25 metres, in the window 1930 to 2000.
 
Noteworthy occupancies were:
 
11660 ASCENSION BBC Hausa, co-channel Radio Australia Shepparton
11695 ALBANIA CRI- Cerrick French
11780 BRAZIL
11790 S. AFRICA AWR-Meyerton Fulfulde
11840 GERMANY AWR-Nauen Arabic
11855 BRAZIL
11885 IRAN English
11955 RWANDA DW-Kigali Portuguese
11975 ROMANIA RRI Romanian
12015 N. KOREA German
 

Friday, October 17, 2014

Australian DX Report Podcast - episode 434 available

Episode no. 434 has been released.
 
It features a Solar Activity report, news about International SW Stations, Schedule Changes, and a Spectrum Monitoring Report.
 
 
The ADXR is also available on iTunes.
 
The on-air version may be heard every Monday at 1145 UTC on 15795, over WWCR Nashville – special ADXR QSLs are available.
 
Regards from Melbourne, Australia!
 
Bob Padula
Host/Producer

Thursday, October 16, 2014

Monitoring Research - 13 MHz spectrum

Ethiopia Dance
 
The 13 MHz band (22 metres) produced good results here in Melbourne during our pre-dawn window this morning.
 
Signals of note included:
 
Radio Bangladesh, Voice of Oromo Revolution (Issoudin), Bible Voice Broadcasting (Issoudin)
 
This is the summary, across the time period 1730 to 1800, on October 15, 2014.
 
13570 CHINA CRI-Xian English to 1755*
13580 BANGLADESH English'
13620 FRANCE RFI-Issoudin Persian to 1800, Russian from 1800\
13640 INDIA Arabic
"          CHINA CRI- Urumqi Russian to 1759*
13650 KUWAIT R. Kuwait Arabic
13660 ENGLAND BBC-Woofferton Pashto to 1800, English from 1800
13695 INDIA English
 
 
 

Wednesday, October 15, 2014

THE RECEPTION OF BRAZILIAN SHORTWAVE TRANSMITTERS IN MELBOURNE, AUSTRALIA


THE RECEPTION OF BRAZILIAN SHORTWAVE TRANSMITTERS IN MELBOURNE, AUSTRALIA

This is a free Research Paper, compiled by Bob Padula, OAM - it discusses and examines the propagation modes and mechanisms which exist for supporting high-frequency radio transmissions between Brazil and Melbourne (Victoria, South Eastern Australia).

It is available for downloading as a 30 page Document from a Cloud platform. It includes many graphs, tables, charts, photos, and audio/video content. Images of QSLs dating back to the 1930s are included.

Chapters include background information on the history, development and evolution of shortwave radio broadcasting in Brazil, in the years 1922 to 2014. An overview of global high frequency propagation is also featured.

Much of the content is based on actual monitoring by the Author in the years 1956 to 2014.

The intended readership is for anyone, anywhere, desirous of gaining an appreciation of complex propagation effects which influence reception patterns on transmission paths into South Eastern Australia which follow the Great Circle route over the Antarctic region.

This Paper is a Copyrighted work by Bob Padula, OAM, MIE(Aust), CPEng, ARMIT (Comms Engineering), of Mont Albert, Victoria, Australia. Bob is a Chartered Professional Communications Engineer, (RMIT University), holding the rank of Life Member - Institution of Engineers (Australia), providing specialized technical consultancy services and authorship in the field of international high frequency broadcasting and radio communications technology.

The Paper may be downloaded from

https://docs.google.com/document/d/1eUgolK9cactKuFHudcKz-JZD3ctTXPViMOmDkFvDIJc/edit?usp=sharing