Bulgaria: DX Program June 10, 2011

Apart from transmissions on long, medium and shortwave, part of the electromagnetic spectrum in the FM band has been allotted for television programs. With analogue television the broadcast of a program takes place with three signals: for audio, for video and for color within one TV channel. Due to the broadcast of a huge amount of information, the frequency band is some 8 MHz wide. 

With digital television the same band of this channel can incorporate 6 or 7 television programs instead of just one. Television stations broadcast in three bands with several groups of channels. On VHF or Very High Frequency there are from 8 to 13 channels depending on the standards in different countries, and the lowest frequencies used for channel one are 45.25 in New Zealand and 45.75 MHz in Ireland, while the highest frequency is on 13th channel in South Africa – 247.43 MHz. Here and further on we quote the frequency of the video – the frequency of the audio differs with 4.5 to 6.5 MHz under various standards. On UHF /Ultra High Frequency/ frequencies range from 471.25 /for USA this is 14th channel, and for Europe – 21st/ to 855.25 МHz or channel 69 in Europe. 

For broadcasts from satellites seven sub-bands have been allocated to television stations with frequencies from 4500 and 18100 MHz. Since the emergence of television to the present day various standards are applied in different countries where its technical parameters are concerned. Just to give you an example, in analogue TV there are 12 standards for audio and video and for color they are NTSC in USA and Japan, PAL in Europe, SECAM in France and in East Europe, plus a few other varieties. 

Even in the era of digital TV five different systems are in use in USA, Europe, China, Japan and South Korea. The television broadcasts from remote countries are followed by radio amateurs. During this month in the northern hemisphere, in separate unpredictable days, the television programs can be followed from countries located at thousands of kilometers from the viewers. The equipment needed includes a suitable antenna, an analogue TV set and noon hours tuning to a frequency from 41 to 100 MHz, i.e. one of the first five channels from VHF. So far radio amateur media provide no reports for reception of remote digital television programs aired by a terrestrial transmitter. 

A more expensive hobby would be the observation of some of the numerous satellites found in the equatorial (geocentric) orbit and broadcasting television programs. The latter with only few exceptions, are coded unlike radio broadcasts that are also aired by the same satellites. In Bulgaria attempts were made as early as 1970s to watch video from more than 20, mostly European, TV stations. With the transition to digital technologies, the opportunities for television DX-ing have diminished. 

Radio calendar: 
On 2 June 1953 was the first live television broadcast between Great Britain and Germany. 

June 4 is the date when Radio Luxembourg started broadcasting in English in 1933, Radio AFN Europe started broadcasts in 1943, the European DX Council was founded in 1967 and the Worldwide Christian Radio was launched on shortwave in 1989. All India Radio was founded on 8 June. 

Broadcast tips 
KAZAKHSTAN: Family Radio, a WYFR station from a studio in USA was heard with a program in English from 11:00 hrs on 15560 kHz and from 13:00 hrs on 13820 kHz from transmitters found in Kazakhstan. 
GUAM: Radio station KTWR of Trans World Radio was heard at 15:00 hrs on 12140 kHz and station KSDA of the Adventist World Radio at 16:00 hrs on 11805 and 12035 kHz, as well as at 16:30 hrs on 11740 kHz – all with programs in English. 
CUBA & VENEZUELA: Radio Nacional de Venezuela a program in English was heard at 23:45 on 13680 and 15250 kHz from transmitters found in Cuba. 
CHINA & MALI: China Radio International was heard with a program in English from 14:00 to 15:56 on 17630 kHz from a transmitter in Mali, Africa. 
AUSTRALIA: Two radio stations from Australia were heard discussing the subject "Tobacco Control": at 06:10 hrs on 13690 and 15160 kHz by Radio Australia , and at 12:30 hrs on 15400 kHz by the religious radio HCJB Australia. All were heard on 31 May. 
INDONESIA: Two programs in English are received with a very strong signal by Voice of Indonesia radio stations, opening at 13:02 and at 15:02 hrs on 9526 kHz. 

Written by Rumen Pankov 
Translated by Daniela Konstantinova 

DX MIX

Dear listeners and friends of Radio Bulgaria! 
The Technical Service of Radio Bulgaria should like to thank you for your generous feedback in response to the monitoring of our emissions held in the period from 18 April till 1 May via a transmitter in Plovdiv 300 kW, and from 2 May till 16 May via a transmitter in Kostinbrod 100 kW. We have received more than 300 e-mails, of them 120 with audio files attached. 
Our special thanks go to: 
Wolfgang Bueschel, Heinrich Eusterbrock, Heinrich Heinemme, Michael Linder, Christoph Preutenborbeck, Rudolf Krumm, Siegbert Gerhard, Klaus Nindel, Hans Ditter Buschau, Gerald Kallinger, Bernd Seiser, Germany 
Paul Gager, Austria 
Bogdan Rzedzicki, Poland 
Max Scordamaglia, Filippo Cattaneo, Italy 
Maurice Etrillard, France 
Ramon Vasquez Durado, Spain 
Ge Huijbens, Belgium 
Anker Petersen, Denmark 
Mauno Ritola, Finland 
Christer Brunstrom, Sweden 
Joseph Klain, Netherlands 
Noel Green, Nick Sharpe, UK 
Glenn Hauser, Jerry Lenamon, Ted Schuerzinger, USA 
Richard Lemke, Canada 

All times in Universal Time Coordinated (UTC), all frequencies in kilohertz (kHz). 

USA: We go on with frequency changes made by IBB: 
Radio Free Asia in Burmese for Southeast Asia 
0030-0130 new frequency 15625 Tinian 250 kW / 279 degrees to replace 13865 

The Voice of America 
1700-1800 in Georgian new frequency 13860 Udorn 250 kW / 308 degrees for Central Asia. The replaced frequency is 13855 
1730-1930 in Farsi new frequency 7510 Udorn 250 kW / 300 degrees for West Asia. The replaced frequency is 7455 
2200-2230 in Khmer new frequency 11765 Tinian 250 kW / 280 degrees for Southeast Asia. The replaced frequency is 15110 

USA: from 18 May WYFR Family Radio broadcasts in a new language - Luba: 
1700-1800 on 17545 Ascension 250 kW / 85 degrees for East Africa 

Iran: a frequency change made by the radio station The Voice of the Islamic Republic of Iran in Arabic for the Middle East valid since 16 May: 
1730-2027 new frequency 6175 Kamalabad 500 kW / 178 degrees, with strong interference from China Radio International in English 1800-1857. The replaced frequency is 6215 

Belgium Next, two new emissions via TDP: 
The Disco Palace, music programs in DRM regime: 
1530-1630 on 15775 Issoudun 50 kW / 90 degrees for the Middle East and South Asia 

Radio Ndiwulira is a new station, broadcasting in the language Luganda in the direction of Uganda: 
1700-1730 on Tuesdays and Saturdays on frequency 17770 Samara 250 kW / 188 degrees 

Holland: a frequency change of Radio Netherlands Worldwide in English: 
1900-2057 new frequency 11615 Kigali 250 kW / 280 degrees for West Africa. The replaced frequency is 11610, due to interference from Radio Exterior de Espana in English and French from Monday through Friday, direction Africa. 

Germany: Finally, a frequency change made by Deutsche Welle in Swahili: 
1000-1100 new 13780 Kigali 250 kW / 265 degrees for Central Africa to replace 9485 

Written by Ivo Ivanov, Frequency Manager of Radio Bulgaria 
Translated by Daniela Konstantinova 

 

SOURCE: DX Program June 10, 2011 http://bit.ly/jD66jC

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