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IARU: Representing international Amateur Radio since 1925

This is Radio Bulgaria's weekly DX Program for radio amateurs and short wave listeners which is included in our one-hour broadcasts starting as follows: 

Friday at 21.00 UTC on 5900 and 7400 kHz beamed to West Europe, at 23.00 UTC 

and Saturday at 02.00 UTC on 9700 and 11700 kHz to North America, as well as in the 

half-hour broadcast at 06.30 UTC on 9600 and 11600 kHz to West Europe

In this issue by DX Editor Dimiter Petrov, LZ1AF, with Broadcast Tips by Rumen Pankov: 


"Amateur Radio: combining communication experience with modern digital techniques" is the theme of this years World Amateur Radio Day. Scheduled for April 18th, World Amateur Radio Day is an inter-national celebration of the hobby sponsored by the International Amateur Radio Union and its member societies representing over 150 countries. 

Since 1925, the IARU has been instrumental in coordinating and representing amateur radio on global matters. It says that in today's world that it is radio amateurs who are finding ways to use frequencies at the fringes of the radio spectrum while developing marriages of radio and the internet, and experimenting with digital and satellite communications. 

Because it uses an international natural resource - the radio spectrum – Amateur Radio must organize nationally and internationally for better mutual use of the radio spectrum among radio amateurs throughout the world, to develop Amateur Radio worldwide, and to successfully interact with the agencies responsible for regulating and allocating radio frequencies. The American Radio Relay League is an example of this organization on a national scale. At the international level, national societies throughout the world work together for the international good of Amateur Radio under the auspices of a representative democracy, the International Amateur Radio Union (IARU). 

Created in Paris, France, the International Amateur Radio Union has been the watchdog and spokesman for the world Amateur Radio community since 1925. The IARU Constitution, last amended in 1989, organizes the Union into three Regional Organizations that correspond to the three radio regions of the International Telecommunication Union (ITU). The IARU Constitution also provides for an IARU Member Society to serve as the Union's International Secretariat. 

IARU Region 1 Executive Committee Meets in Sofia 

A regular meeting of the International Amateur Radio Union (IARU) Region 1 Executive Committee is being held in Sofia April 16-18. Region 1 Member societies are the national amateur radio organizations in Europe and Africa. 

To celebrate the World Amateur Radio Day, April 18, the Executive Committee members will visit the famous contest station LZ9W near the town of Breznik, about 50 km from Sofia and will attend an official dinner party hosted by the Bulgarian Federation of Radio Amateurs and the Mayor of Breznik. 

Amateur Radio Salutes ANZAC Day 

Australian and New Zealand radio hams will be operating on ANZAK Day – Sunday, April 25 – as an Amateur Radio salute to the servicemen and women in the many conflicts. 

CW – Morse code – was used as a means of communication during WW2, Korea, Malaysia and even early Vietnam. Museum ships, including HMAS Whyalla, will be utilized to honor the event. 

Moonbounce Using the 1000 Foot Arecibo Dish 

The Arecibo Observatory Amateur Radio Club will be putting the 1000-foot radio telescope on the air 
for 432 E-M-E (moon bounce) contacts from April 16th to 18th. The call sign used will be KP4AO with a transmit frequency of 432.045 MHz and receiving between 432.050 to 432.060 MHz. KP4AO will transmit with 400 watts out but the giant dish will give the signal about 60 db of gain. Translated it means should be able to be heard with a small hand-held Yagi antenna pointed at the moon and a good receiver. A 15 db gain antenna and 100 watts will be enough to work KP4AO on CW. 

Celebrating Mexico's Independence 

The Mexican Federal Telecommunications has authorized the use of the special 4B prefix for Mexican stations throughout the year 2010 to celebrate the bicentennial of Mexico's independence and the centennial of the Mexican Revolution. 

Broadcast Tips 

Mongolia. Radio Voice of Mongolia's English Service was heard in the new summer radio season on its winter frequency of 9665 kHz from 15.30 to 16 hours. The station also announced that its other emission in English is at 10.30 hours on 12085 kHz. 

Bulgaria. More than 10 medium wave transmitters have been closed down recently in this country. Also, the weekly emissions of Radio Varna on 6000 kHz from 21.10 to 24 hours on Sunday and from 00 to 03 hours on Monday have been discontinued temporarily. At present Radio Varna can be heard on VHF, as well as from 21.10 to 24 hours on 1296 kHz and from 01 to 03 hours on 261, 747, 864, 963 and 1161 kHz. 

Nepal. Radio Nepal celebrated its 60th anniversary on April 8, 2010. 

Thailand. Radio Thailand has been received in Sofia with programs in English at different times, announcing that it has one-hour broadcasts at 00 hour on 15725 kHz and at 19 hours on 7570 kHz, as well as half-hour broadcasts at 02 hours on 15275 kHz, at 05.30 hours on 17655 kHz, at 12.30 hours on 9890 kHz, at 14 hours on 9575 kHz, and also from 20.30 to 20.45 hours on 9680 kHz. The QSL address is: Radio Thailand World Service, 236 Vibhavadi Rangsit Road, Bangkok 10400, Thailand. 

South Africa. Amateur Radio Mirror International of the South African Radio League has announced its new schedule in English as follows: every Sunday from 08 to 09 hours on 7205 and 17570 kHz, repeated on Monday from 19.05 hours on 3215 kHz. The emission at 19.05 hours used to be heard in Sofia during the winter also on 7082 kHz SSB. The QSL address is: Amateur Radio Mirror, P.O.Box 90348, Garsfontein 0042, South Africa. 

Caucasus. Abkhas Radio is reported only on medium wave on 1350 kHz; Voice of Justice from Nagorno-Karabakh has been received in Sofia on Tuesday and Friday from 13 to 13.27 hours with repeats Wednesday and Saturday from 05 hours on 9677.7 kHz and Radio Adygeya from Maycop, 
Russia can be heard on Sunday from 18 to 19 hours on 7325 kHz. 

Thank you for being with us. Your opinions and suggestions will be appreciated and all reception reports confirmed with the QSL card of Radio Bulgaria. Please address your letters to 

English Section, 
Radio Bulgaria, 
Sofia, Bulgaria 

or by e-mail to . 

An online reception report form is available at – click on English and navigate. 

So, 73 and DX! 

(Yimber Gaviria, Colombia)

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