Medium wave transmitter Augsburg
In the past, various medium wave transmitters were operated in Augsburg . The first medium wave transmitter went into operation in 1927 on the roof of the Oberpostdirektion Augsburg and existed until 1935. After the Second World War, the US military government built a new medium wave transmitter in the east of the city and handed it over to the Bavarian Broadcasting Corporation a few years later . This put the transmitter out of operation in 1952 and at the same time built a new transmitter on the southern outskirts of the city. In 1965 this transmitter was finally shut down. The US broadcaster AFN then started broadcasting at the same point . With the withdrawal of US troops in the late 1990s, this medium-wave transmitter was also taken out of service and completely dismantled a few years later.
Transmitter locations
Grottenau
The first medium wave transmitter in Augsburg consisted of a single-stage transmission system from Telefunken with an output of 250 watts. The Telegraph Technisches Reichsamt in Munich selected the Oberpostdirektion on the Grottenau as the location ( 48 ° 22 ′ 9.8 ″ N , 10 ° 53 ′ 38.5 ″ E ) and had two masts set up there at a distance of 149 meters. The three-wire T antenna was then stretched between the Oberpostdirektion and the neighboring Schwäbische Volksbank, giving it an effective length of 90 meters.
On September 1, 1927, the so-called Zwischenfunksender Augsburg went into trial operation. On September 11, 1927, the changeover to continuous operation on the frequency 530 kHz ( common wave ) took place. In the following years, however, the frequency had to be changed several times. According to the specifications of the Prague Wave Plan, the transmitter initially received the frequency 536 kHz on June 30, 1929. On November 29, 1929, the frequency was finally changed to 1112 kHz, but a month later it was switched back to the original frequency. When the Lucerne Wave Plan came into effect on January 15, 1934, the transmitter was given the frequency 1465 kHz. After a week had passed, the transmitter had to change the frequency again (1267 kHz). A little later, on March 1, 1935, the transmitter was shut down.
Lech dam
After the end of the Second World War, the US military government built a new medium wave transmitter on Lechdamm (exact location unknown). In the post-war years it served to distribute the AFN program on the 773 kHz frequency. A 1 kW transmitter from Western Electric was used as the transmitter, but the AFN only operated it with 350 watts. The transmission took place via a T antenna that was stretched between two 40 meter high wooden masts.
After a short period of use by AFN, it was handed over to Bayerischer Rundfunk. This started broadcasting there on December 24, 1950. From then on it was transmitted on 1142 kHz with 1 kW. On October 25, 1951, the transmission frequency was finally changed to 1484 kHz. In 1952 the transmitter in Augsburg-Hochzoll was shut down.
Wasenmeisterweg
With the closure of the transmitter on Lechdamm, a replacement transmitter was installed on Wasenmeisterweg not far from Bundesstraße 17 , which runs there today ( 48 ° 21 ′ 8.4 ″ N , 10 ° 51 ′ 20.5 ″ E ). Its operation began on July 28, 1952. The transmission system came from Siemens and had an output of 5 kW; a 50-meter-high, self-radiating tubular mast, insulated from earth, served as the transmitting antenna . With the help of the transmitter, the BR radio program was broadcast on the medium wave frequency 1484 kHz. From November 6, 1952, the VHF frequency 88.5 MHz was also used after a transmitting antenna for the VHF transmitter was installed on the top of the tubular mast.
The transmission power of the FM transmitter was 250 watts. The broadcaster originally received the program via a dedicated line. From December 1, 1956, the program was played via the Wendelstein transmitter via ball reception , so that the costly dedicated line could be terminated. The power of the medium wave transmitter was reduced to 2.5 kW on March 23, 1957. From October 1st of the same year the switch to automatic operation took place.
From January 29th to March 8th 1965 the medium wave transmitter was switched off for maintenance work, then it went into operation with only 400 watts of transmitting power. On October 1, 1965, the entire plant was shut down and dismantled a little later. However, the AFN erected a 56-meter-high, self-radiating lattice mast with a square cross-section, which was used to broadcast a radio program on 1484 kHz (from 1978: 1485 kHz) until the US troops withdrew from Augsburg in 1998. The since then functionless transmitter mast was dismantled in 2008 as part of the renovation of the B17 junction in Leitershofen.
swell
- Michael Strassmann: Historical - (Almost) forgotten transmitter locations of the Bavarian Broadcasting Corporation (6). In: Radio-Kurier - Hear Worldwide , Issue 6/2014, p. 26.
Individual evidence
- ^ History of the station on the Oberpostdirektion Augsburg
- ↑ Contribution to the station on the Oberpostdirektion in the BR timeline ( Memento from December 4, 2014 in the Internet Archive )
- ^ AFN broadcast mast Augsburg on structurae.de
- ↑ Article about the dismantling of the transmission mast in the Augsburger Allgemeine from November 4, 2008