Transmitter Nanos

The Nanos transmitter is a radio and television broadcasting facility operated by Radiotelevizija Slovenija on the Pleša summit , in Nanos , a mountain range in southwestern Slovenia .

history

The beginnings

The Nanos has been a radio station since 1953. Initially, from 1953 to 1954, test broadcasts with 30 watts of power were broadcast. These test broadcasts were so successful that in the summer of 1955 it was decided to start regular broadcasting on the Nanos . Two years later, the first television station went into operation, initially exclusively with the takeover of the Italian program of Radiotelevisione Italiana , supplied from the Monte Belvedere station near Trieste , which was 15 kilometers away from the station on Nanos. The transmission tower at that time was only 20 meters high. Later, instead of the RAI program, the JRT program from Belgrade was broadcast .

First expansion

On July 19, 1960, at the request of Belgrade, the decision was made to expand the transmitter. Not only were new transmitters for radio and television installed, but a new transmission tower 50 meters high was also built. The opening of the new transmitter took place on December 15, 1962. The transmission power of the first program was increased as part of this, and a second VHF program was added at the same time.

First destruction

On February 4, 1969, the transmitter mast collapsed as a result of a violent storm . By the end of 1969 a new tower with a height of 42 meters was built.

Second expansion

Another major modernization of the transmitter followed in the summer of 1970, in which the FM transmitter and the associated antennas were replaced. A new UHF television transmitter was also installed and the transmission power to FM was increased to 4 kilowatts . By installing the UHF antenna, the transmission tower was 10 meters higher.

Start of regular television broadcasts in Slovenian

The first Slovenian television programs in color were broadcast on the old television channel installed in 1960 on November 11, 1970. On July 28, 1971, the regular operation of the Slovenian television began . At first only TV Koper was broadcast. A second program was added in May 1990.

Third expansion

In 1975 a new, weather-resistant transmission tower was built. However, worries about the collapse of the mast persisted until the 1987 inspection .

Second destruction and fourth expansion

On June 28th and July 2nd, 1991 the transmitter site Nanos was destroyed during the Slovenian War of Independence . The transmission tower for the television antennas was repaired, and at the same time a new VHF transmission tower 35 meters high was built. After the reconstruction, private broadcasters also began broadcasting television signals from the Nanos channel.

Frequencies and Programs

Analog radio (VHF)

Frequency (MHz)	program	RDS PS	RDS PI	Regionalization	ERP (kW)	Antenna pattern round (ND) / directional (D)	Polarization horizontal (H) / vertical (V)
88.6	Radio Koper	RADIO_KP	9421	-	25th	ND	H / V
92.9	Slovenija 1	_SLO_1__	9201	-	50	ND	H / V
95.3	VAL 202	VAL_202_	9202	-	50	ND	H / V
103.1	Radio Capodistria	CAPODIST	9411	-	100	D (80-300 °)	H / V
105.7	ARS	__ARS___	9203	-	50	ND	H / V

Digital television (DVB-T)

DVB-T is broadcast in single- frequency mode (SFN) with other transmitter locations:

channel	Frequency (in MHz)	Multiplex	Programs in multiplex	ERP (in kW)	Antenna diagram round (ND) / directional (D)	Polarization horizontal (H) / vertical (V)
27	522	MUX-A / Zahod	TV SLO 1 (also in HD) TV SLO 2 (also in HD) TV SLO 3 Capodistria	200	ND	H
41	634	MUX / DVB-T 2 test	DVB-T 2 test	?	?	H
22nd	482	MUX-C / West	several private broadcasters, including pop TV , Channel A and Golica TV (Assignment changes)	200	ND	H

Analog television (PAL)

Until the switch to DVB-T on November 22, 2010, the transmitter location continued to be used for analog television:

channel	Frequency (MHz)	program	ERP (kW)	Transmission diagram round (ND) / directional (D)	Polarization horizontal (H) / vertical (V)
6th	175.25	TV SLO 1	35	D (90–225 °)	H
27	519.25	TV Koper	400	ND	H
41	631.25	TV SLO 2	400	ND	H
61	791.25	TV3	?	?	H

Web links

Info page at Radio Televizija Slovenija (Slovenian)
Information and pictures from the transmitter on the Nanos (German)