Bleßberg transmitter
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Bleßberg transmitter
Radio transmission point Eisfeld 3
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| Basic data | ||||
| Place: | on the Bleßberg near Siegmundsburg in the Thuringian Slate Mountains | |||
| Country: | Thuringia | |||
| Country: | Germany | |||
| Altitude : | 866 m above sea level NN | |||
| Coordinates: 50 ° 26 ′ 48.6 ″ N , 11 ° 0 ′ 15.7 ″ E | ||||
| Use: | Telecommunications tower , broadcasting station | |||
| Accessibility: | Transmission tower not open to the public | |||
| Owner : | German radio tower | |||
| Tower data | ||||
| Construction time : | 1970-1976 | |||
| Operating time: | since 1976 | |||
| Total height : | 195.1 m | |||
| Operating rooms: | 35 m , 45 m, 55 m | |||
| Data on the transmission system | ||||
| Last modification (transmitter) : | November 2015 | |||
| Waveband : | FM transmitter | |||
| Radio : | VHF broadcasting | |||
| Send types: | DVB-T, DAB , mobile radio , directional radio | |||
| Position map | ||||
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The transmitter Bleßberg in the Thuringian Slate Mountains is a transmitter at 866.9 m above sea level. NHN high Bleßberg near Siegmundsburg in the Thuringian district of Sonneberg . There, Deutsche Funkturm , a subsidiary of Deutsche Telekom , operates a transmission tower for ultra-short wave (VHF), mobile radio , directional radio and DVB-T , a variant of digital television . At around 1062 m above sea level. NHN ( 866.9 m site height + 195.1 m tower height) is the top of the highest artificial point in Thuringia.
The current transmission tower was built as a replacement for an approximately 70 m high steel lattice tower between 1970 and 1976. A free-standing reinforced concrete tower serves as the antenna carrier . This tower, which does not have any areas regularly accessible to the public, is 195.1 m high, the shaft of which is 107.5 m high. The tower has two directional radio platforms at a height of 35 m and 45 m and a platform at 55 m to protect the directional antennae from falling chunks of ice.
The Bundeswehr maintains microwave links at this location.
There are also two smaller directional radio masts, the mobile operator E-Plus and Vodafone , on the Bleßberg plateau.
Geographical location
The transmitter Bleßberg located on the summit region of the Thuringian Slate Mountains located Bleßberg . It belongs to the urban area of Neuhaus am Rennweg and is located about 4 km southwest of the Siegmundsburg district . The border to the city of Eisfeld in the Thuringian district of Hildburghausen runs directly north and west of the plant site. The Bleßberg hiking home is in front of the transmission tower and the company building .
Emergence
At the beginning of the 1960s, the idea grew that a major radio station would have to be set up to improve reception for VHF radio and television programs in the southern Thuringian region. The current location on the 865 m high Bleßberg near Eisfeld was selected on the basis of dispersion measurements . At that time, a television channel converter was already in operation on the Bleßberg on a steel frame tower, which was also used as a lookout tower. This was built around the 1960s.
From this tower, which was demolished in the early 1970s, the first program of the German television broadcasting took place . In September 1961 this television channel converter was replaced by a 0.1 kW television transmitter. This transmitter was also the main transmitter for a large number of converters in the Sonneberg , Neuhaus am Rennweg and Hildburghausen area . The modulation was supplied by the Inselsberg transmitter 75 km away via ball reception . In July 1963 a new radio operation center was completed on the Bleßberg.
With two 10 kW VHF transmitters, the broadcasting of the programs of the Berliner Rundfunk and the Deutschlandsender took place . The modulation supply of the VHF transmitters was done via radio lines, in the reserve case via ball reception.
In December 1963, a UHF television station started broadcasting in Volume IV on Channel 33, although at that time there was still no second television program in the GDR . The construction of this transmitter was necessary because the frequency coordinated by Comité Consultatif International des Radiocommunications (CCIR) had to be occupied. The antenna for this transmitter was on the then new steel lattice tower. From May 1964, the first program of German television was broadcast on channel 12 with a new 0.3 kW VHF television transmitter of the Soviet design.
The reconstruction of the Bleßberg radio station began in 1969 with the construction of a new access road. In the period from 1970 to 1976, buildings for the technical facilities were built. The visible sign was the construction of the 195 m high combined concrete tower with tubular steel antenna support.
The official handover of the new system took place on August 30, 1975 with the commissioning of a 20 kW UHF television transmitter (CSF transmitter) for the second program on channel 33.
In 1980 a 10 kW television transmission system followed for the 1st program, as well as two double VHF systems for the programs Berliner Rundfunk and Voice of the GDR . The broadcasting station was gradually expanded with further VHF transmission systems for the programs Radio DDR I and Radio DDR II . In 1986 a transmitter for the youth program DT64 was added on 102.7 MHz. From 1987 onwards, all radio programs from Bleßberg could be received in stereo.
Up until the beginning of the 1990s, channels 12 and 33 ran with 30 kW each. With the switch to digital audio broadcasting (DAB), channel 12 was switched off in January 2000.
In 1993 the renewal of the transmission technology began with the installation of two new VHF transmitters. In 1994, the UHF transmitter for MDR television in Kanal 33 was replaced by a new 20 kW dual transmitter system .
On October 27, 1995, the tower received a new GRP cylinder, which now contained the antennas for channels 33 and 44. The old GDR fiberglass cylinder with the UHF transmitting antenna from VEB Funkwerk Köpenick had already been dismantled shortly before. The new antenna was more resilient than the old GDR antenna. When installing the new antenna, the plastic cylinder on the flange was damaged and the antenna had to be placed back on the floor. After the repair, the antenna was successfully installed a few weeks later with the Soviet Mil Mi-10 K cargo helicopter .
In 1996 the entire VHF transmission technology and the VHF antennas were renewed.
In the course of the DVB-T conversion on July 1, 2008, new antennas were installed in the GRP cylinder. The broadcast of the analogue television was stopped.
When the digital radio was switched off in January 2010, the DAB antennas were dismantled in May 2010.
The basic network transmitter still supplies the area of the southern Thuringian Forest today and extends far into Upper Franconia with its programs .
On April 25, 2018, DVB-T transmission was decommissioned without replacement . There are currently no plans to transmit DVB-T2 .
Frequencies and Programs
Analog radio ( FM )
In the case of directed radiation, the main radiation directions are given in degrees in the antenna diagram.
|
Frequency (MHz) |
program | RDS PS | RDS PI | Regionalization |
ERP (kW) |
Antenna diagram round (ND) / directional (D) |
Polarization horizontal (H) / vertical (V) |
|---|---|---|---|---|---|---|---|
| 91.7 | MDR Thuringia | MDR_THUE | D6F1 | Suhl | 100 | ND | H |
| 96.9 | MDR Jump | MDR_JUMP | D3C2 | - | 20th | D (340 ° -70 °, 100 ° -110 °, 170 ° -180 °, 260 °) | H |
| 95.2 | MDR culture | __MDR___ _CULTURE_ | D3C3 | - | 20th | D (350 ° -180 °, 260 ° -300 °) | H |
| 94.2 | Deutschlandfunk culture | Dlf_Kult | D220 | - | 100 | ND | H |
| 102.7 | Antenna Thuringia |
AT-SUED_ , ANT.THUE |
D7F8 (regional), D3F8 |
south | 60 | ND | H |
| 106.7 | Landeswelle Thuringia |
LW_SUED_ , LANDESW. |
D7F9 (regional), D3F9 |
south | 60 | D (130 ° -100 °) | H |
Digital radio ( DAB )
For cost reasons and in preparation for the nationwide restart of DAB + , broadcasting operations were suspended from January 4, 2010 to December 9, 2015.
DAB is broadcast in vertical polarization and in single-frequency mode with other transmitters.
| Former DAB multiplex channel 12B (Thuringia) until January 4, 2010 | ||||
|---|---|---|---|---|
| block | Programs |
ERP (kW) |
Antenna diagram round (ND) / directional (D) |
Single frequency network (SFN) |
| 12B Thuringia 1 (D__00015) |
|
0.5 | D. | Bleßberg , Altenburg (Weißer Berg), Dingelstädt (Hockelrain), Eisenach (city), Eisenberg (Heimstättensiedlung), Erbenhausen, Geismar (Hülfensberg), Gera-Ronneburg , Gießübel, Greiz, Heiligenstadt (Dorotheenhof), Ilmenau (Kickelhahn), Inselsberg ( Thuringian Forest) , Jena (Oßmaritz-Cospoth), Keula, Kulpenberg (Bad Frankenhausen) , Lobenstein (Sieglitzberg), Meiningen, Pleß (Breitungen), Remda / Saalfeld (Großer Kalmberg), Ronneburg, Saalfeld (Kulm) , Schleid (Rockenstuhl) , Schmiedefeld (Lichte), Steinbach-Hallenberg, Suhl (Erleshügel) , Triptis, Weimar (Ettersberg) |
Digital television ( DVB-T )
The DVB-T broadcasts from Mitteldeutsche Rundfunk on Bleßberg ran from 1 July 2008 to 25 April 2018. The broadcast was made in simulcast (Single Frequency Network) with other transmitter sites.
| channel |
Frequency (MHz) |
Multiplex | Programs in multiplex |
ERP (kW) |
Antenna diagram round (ND) / directional (D) |
Polarization horizontal (H) / vertical (V) |
Modulation method |
FEC |
Guard interval |
Bit rate (Mbit / s) |
SFN |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 21st | 474 | ARD Digital (MDR) | 10 | ND | V | 64-QAM | 2/3 | 1/4 | 19.91 | Saalfeld (Kulm) , Sonneberg (Bleßberg), Erfurt-Windischholzhausen , Weimar (Großer Ettersberg) | |
| 27 | 522 | ARD regional (MDR) Thuringia |
|
10 | ND | V | 64-QAM | 2/3 | 1/4 | 19.91 | Saalfeld (Kulm) , Sonneberg (Bleßberg), Erfurt-Windischholzhausen , Weimar (Großer Ettersberg) , Gera-Roschütz |
| 50 | 706 | ZDFmobil | 20th | ND | V | 16 QAM (8 k mode) |
2/3 | 1/4 | 13.27 | Saalfeld (Kulm) , Sonneberg (Bleßberg), Großer Inselsberg , Erfurt-Windischholzhausen , Weimar (Großer Ettersberg) |
Analog television
Until the switch to DVB-T , the following programs were broadcast in analog phase alternating line (PAL):
| channel |
Frequency (MHz) |
program |
ERP (kW) |
Transmission diagram round (ND) / directional (D) |
Polarization horizontal (H) / vertical (V) |
|---|---|---|---|---|---|
| 33 | 567.25 | MDR television (Thuringia) | 380 | ND | H |
| 44 | 655.25 | The First (MDR) | 100 | ND | H |
Similar towers in this series
Web links
- Bleßberg transmission tower. In: Structurae
- Image documentation about the Bleßberg on Thueringer-Landschaften.de