Bulgaria: DX Program July 8, 2011

DX Program July 8, 2011

On the program today:

- The influence of radio waves on the human body during listening at long, medium and short wave 
- Radio calendar 
- Broadcast tips by Rumen Pankov 
- DX Mix News by Ivo Ivanov

The influence of radio waves emitted by artificial sources on the human body and the health of all living beings on the planet can be divided into two types – one type is the effect of the radio-receiving devices situated in proximity to listeners, and the second type is the effect of the transmitting devices, including radio transmitters and their antennas. According to the recommendations of the World Health Organization, the health regulations of the European Union and other institutions and experts, the admissible levels of electromagnetic radiation that the human body could be harmlessly exposed to are estimated at 2 watts per 10 kg of body weight. Modern research in the field sets this level at 2 watts per 1 kg of body weight. 

Ordinary radio listeners using radio receivers, external or internal antennas, amplifiers and other auxiliary equipment are not exposed to dangerous radiation levels. The electromagnetic radiation normal radio listeners are subjected to is many times lower than the admissible levels of 2 watts either per 1 or per 10 kg of body weight. Connecting wiring also poses no danger, especially when they are screened, such as coaxial cables. 

Since radio receivers operate with electricity coming from the power grid, having a voltage of 220 V for instance, one should have in mind that an electromagnetic field is formed near the phase conductor or both conductors when they are plugged into a device, with a range of approximately 20 cm, which is of moderate risk to humans and it becomes harmful only when there is exposure over a long period of time. There is also a risk when external antennas are situated immediately next to conductors with voltage of 110, 220, and 380 V, and others. 

In the 1970s, the radio station The Voice of America signed an agreement with Israel for the construction of a group of new powerful radio transmitters. Protests on behalf of local residents followed and the construction was suspended. In Bulgaria, a powerful radio transmitter was to be constructed near the Black sea coast in 1991but the protests of the population in the northeastern parts of the country stopped the construction. Legal disputes are still under way in Italy over the transmitters of Radio Vatican. 

These and many other similar cases have been caused by the harmful influence of radio transmitters and by harmful effects of the antenna radiation, in particular. During radio transmission, a strong electromagnetic field is formed near antennas. Its dimension is called intensity and it depends on a multitude of factors, such as the power of the transmitter, the power of the antenna signal, the distance to the equipment, the direction of the antenna, the amount of transmitted information, etc. For these and other reasons, designers of radio transmitters and antennas are trying to locate these facilities in remote regions, away from heavily populated regions, although this often entails additional complications, such as providing power supply, cooling, roads, etc. In present day, most countries in the world observe all healthcare regulations related to the construction of radio transmitters.

Radio calendar 
On July 10, 1962, the first telecommunications satellite in the world, Telestar 1, was launched into outer space. What is more, two very popular radio stations among radio listeners started their first emissions in the month of July. These were Radio Yaounde from Cameroon on July 14, 1955, and Illimani from Bolivia, whose first broadcast was on July 15, 1933.

Broadcast tips 

CHAD: Radio Chad was heard in the last days with a very strong signal and was heard with a program in French at 05.15 and in vernacular and in Arabic at 17.55 hours on 6165 kHz. 

NETHERLANDS: Radio Netherlands in Dutch was heard at 05.20 hours on 9865 kHz. The radio station is using transmitted located in Germany, the Netherlands, Bonaire, Madagascar, etc. 

ETHIOPIA: With identification "This is Radio Ethiopia on short waves 31, 41 and 49 meters on medium waves… at 12.00 h on 9705 KHz a program in English started. News bulletin was heard after 12.30 h. 

AUSTRALIA: Radio HCJB Global Voice in English was heard at 15.25 h on 15340 KHz from a transmitter in Australia and before their close down at 15.30 h. 

BELARUS: The Home Service of Belarus Radio was heard with a program of old songs from the 1930s after 19.20 h on 6010, 6070 KHz, and on 7280 KHz with interference from radio The Voice of Vietnam. 

USA: Two different programs in English of Family Radio were heard after 1730 h on 7270 KHz from a transmitter in South Africa, on 7395 from Madagascar, and on 9610 from Germanym and the other on 9775 KHz from a transmitter in the United Arab Emirates. 

Compiled by Rumen Pankov 

DX Mix News by Ivo Ivanov 


DX MIX

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

In today's edition of DX Mix, we will introduce you to the summer schedule of radio The Voice of Turkey: 

- in Arabic 
0900-0955 on 11750 
1400-1455 on 9540 and 17770 
1830-1925 on 11690 

- in Azeri 
0700-0755 on 11730 
1530-1625 on 9530 

- in Bulgarian 
1100-1125 on 7210 

- in Chinese 
1100-1155 on 15240 

- in Dari, Pashto and Uzbek 
1500-1625 on 11765 

- in English 
0300-0355 on 6165 and 9515 
1230-1325 on 15450 
1630-1725 on 15520 
1830-1925 on 9785 
2030-2125 on 7205 
2200-2255 on 9830 

- in French 
1930-2025 on 9535 and 9635 

- in Georgian 
1000-1055 on 9655 

- in German 
1130-1225 on 13760 
1730-1825 on 11835 

- in Italian 
1400-1425 on 9610 

- in Kazakh 
1330-1355 on 11880 

- in Persian/Farsi 
0830-0955 on 11795 
1500-1555 on 9765 

- in Russian 
1300-1355 on 11965 

- in Spanish 
0100-0155 on 9770 and 9870 
1630-1725 on 11930 

- in Tatar 
1000-1025 on 9855 

- in Turkish 
0000-0155 on 7260 
0400-0555 on 6040 and 11980 
0600-0855 on 11750, 11955 and 13635 
0900-1155 on 11955 and 13635 
1200-1255 on 13635 
1300-1555 on 9840 
1600-2055 on 5960 and 9460 

- in Turkmen 
1200-1225 on 11825 

- in Urdu 
1200-1255 on 13710 

- in Uyghur 
0200-0255 on 9465 
1230-1325 on 11700 

- in Uzbek 
1030-1055 on 13650 

Compiled by Ivo Ivanov, Frequency Manager of Radio Bulgaria 

English version: Rossitsa Petkova

 SOURCE:   DX Program July 8, 2011  : http://bit.ly/qBnZjl 

Via Yimber Gaviria, Colombia