Sender Hemmingen – Wikipedia
The Sender Hemmingen is a broadcast of the Norddeutscher Rundfunk for FM-Rundfunk and television in Hemmingen, a city in the Hanover region. Until the beginning of 2015, he radiated as a medium -wave transmitter to 828 kHz NDR info.
The first mast was built in 1940 for a medium-wave transmitter that replaced Hannover-Hainholz.
After the first broadcast of 1940 was destroyed by the German Wehrmacht on April 7, 1945 before the British armed forces were entered, a 119 meter high steel pipe mast was built in 1948. A little later, a 108-meter-high steel frame mast was followed as an antenna carrier for FM and analog television and for a medium-wave reserve antenna.
The transmission frequency of the middle wave transmitter was until the entry into force of the Geneva wave plan on November 23, 1978 1586 KHz with a transmission performance of 40 kW.
After the Geneva wave plan came into force, the broadcast frequency was 828 kHz. Since this frequency was also used by the Freiburg-Lehen broadcaster, the transmission power of the middle wave broadcaster Hemmingen had to be reduced to 5 kW at night, while it was 100 kW and then 20 kW until the late 1990s.
After switching off the Mittelwelle broadcaster Freiburg-Lehen in 2012, the transmission performance was 20 kW continuously.
In 1999 the 119 meter high steel pipe mast was blown up and replaced by today’s 149.5 meter high steel compartment mast, which bears FM and DVB-T transmitter antennas and a diamond antenna for medium wave. The 108 meter high steel specialist mast was initially preserved as a reserve antenna, but was blown up on April 12, 2006 due to too high maintenance costs. [first] [2] [3]
After a decision by the Commission to determine the financial requirements of the broadcasters (KEF), the middle wave transmitter was switched off on January 13, 2015. [4] [5] [6] [7]
Analogy radio (FM) [ Edit | Edit the source text ]
Digital television (DVB-T / DVB-T2) [ Edit | Edit the source text ]
The DVB-T2 regular operation started on March 29, 2017. Since then, the broadcast of paid private multiplexes (Freenet TV from Media Broadcast) is only via the Telemax in Hanover. [8] The DVB-T2 broadcasts in HEVC are carried out in equal wave operations (single frequency network) with other locations. Optionally, additional programs contained in the NDR offer and on Freenet TV Connect can be reproduced via an internet connection if the reception device HbBTV (from version 1.5) supports (NDR via IP: ARD-Alpha HD, RBB Brandenburg HD, SR television HD, SWR BW HD, …).
| Channel | frequency (MHz) |
Multiplex | Programme im Multiplex | ERP (kW) |
Antenna diagram round (nd)/ directed (D) |
Polarisation horizontal (H)/ vertikal (v) |
Sfn with |
|---|---|---|---|---|---|---|---|
| 23 | 490 | ARD Digital (NDR) |
Radio : |
5 | ND | H | Alfeld (Reuberg), Braunlage (Hütteberg), Braunschweig-Broitzem, Braunschweig-Innstadt, Göttingen (Espol-Solling), Göttingen-Hetjershausen, Hannover (Telemax), Hanover-Hemmingen , Hildesheim (Sibbesse), Torfhaus (Harz-West) |
| 36 | 594 | Mixed multiplex from ZDF and Freenet TV | 5 | ND | H | Braunschweig-Broitzem, Braunschweig-innerstadt, Hanover (Telemax), Hanover-Hemmingen , Hildesheim (sibbes), Wolfsburg | |
| 40 | 626 | ARD Regional (NDR) Lower Saxony |
Radio : |
5 | ND | H | Alfeld (Reuberg), Braunlage (Hütteberg), Braunschweig-Broitzem, Braunschweig-Innstadt, Göttingen (Espol-Solling), Göttingen-Hetjershausen, Hannover (Telemax), Hanover-Hemmingen , Hildesheim (Sibbesse), Torfhaus (Harz-West) |
Sendaparameter
| Used by (HD programs per mux) | Modulations- procedure |
Coderate | FFT-Modus | Guard- interval |
Pilot | Data rate [Mbit/s] |
|---|---|---|---|---|---|---|
| ZDF (5) | 64-QAM | 3/5 | 16k extended | 19/128 | Pilot Pattern 2 | 22.0 |
| ARD Digital (NDR) (5) NDR regional (5) |
64-QAM | 1/2 | 16k extended | 19/128 | Pilot Pattern 2 | 18.2 |
Analog’s television (PAL) [ Edit | Edit the source text ]
Before the switch to DVB-T on May 24, 2004, the broadcasting location continued to be used for analog television:
| Channel | frequency (MHz) |
program | ERP (kW) |
Sendediagramm round (nd)/ directed (D) |
Polarisation horizontal (H)/ vertikal (v) |
|---|---|---|---|---|---|
| 8 | 196,25 | The first (NDR) | 5 | ND | H |
- Alfred Schmidt: Report on the events in the destruction of the Hanover-Hemmingen broadcasting systems on April 7, 1945 , in Waldemar R. Röhrbein (ed.): 60 years of radio in Hanover. 1924 – 1984 (164 pages with numerous illustrations), contributions to the exhibition in the Historical Museum on the Hohen Ufer, Hanover: Historical Museum on the Hohen Ufer, 1984, pp. 144–149
- ↑ Structurae.de: MW-Sendemast Hemmingen (1948)
- ↑ Structurae.de: MW broadcasting man Hemmingen
- ↑ Structurae.de: Hemmingen (Nds.) FM/FS broadcasting man
- ↑ Dark future: In 2015 the middle wave dies In: Radioszene.de of June 21, 2013, accessed on June 21, 2013
- ↑ The middle shaft goes – NDR info special remains ( Memento from January 9, 2015 in Internet Archive ) on NDR.de; Online on the Internet: January 6, 2014
- ↑ Almost all ARD radio station places medium wave on Heise.de from January 6, 2014
- ↑ Archived copy ( Memento of the Originals from April 9, 2015 in Internet Archive ) Info: The archive link has been used automatically and not yet checked. Please check original and archive link according to the instructions and then remove this note.
- ↑ Data sheet DVB-T2 HD Lower Saxony. (PDF) NDR.de, Retrieved on April 1, 2017 .
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