OIV Tower Sljeme is a 169-metre (563 ft) tall TV and radio tower built of reinforced concrete on the summit of the 1035 metre (3450 ft) tall peak Sljeme of the Medvednica mountain north of Zagreb, Croatia.

History First observation towers on Sljeme were built in 19th century. In 1869, the first wooden construction was built, which also served as a trigonometric point. In 1889, the same year Eifell Tower was built, a 12 meters tall iron observation tower was built on Sljeme. As radio technology progressed, the observation tower become increasingly used as a radio transmitter. In 1960 the first 82 meters tall iron tower was built on Sljeme, which was by 1965 open for visitors, while 12 meters tall tower from 1889 was relocated to Japetić, the highest peak of nearby Samoborsko Gorje. However, even this 82 meters tall tower was soon demolished in order to build the current modern tower.Info panel "Put piramide" on Japetić.

Zagreb TV Tower was built in 1973. It is open to the public, with a cafe and observation deck at level. The tower itself is 169 m tall.

On 4 October 1991, during the Croatian War of Independence, the tower was a target of a Yugoslav Air Force attack. The tower was bombed at 16:10 and as a consequence the entire fourth and fifth floors and a portion of the third floor sustained heavy damage, rendering the tower unusable. Two staff members present at the time of the attack were not hurt as they took shelter at the base of the tower. It took three months to repair the damage. During that time the television programme was broadcast via several low-power transmitters located within Zagreb itself and on top of the Medvednica Mountain. The alternate transmitters were already in position at the time because an attack against the tower was considered possible.

There are some speculations about the opening of the tower restaurant, as a part of the "Sljeme" project, which includes building of the new ski-tracks, and an extension of the cable car line.

FM

Frequency(MHz) Broadcaster RDS PS RDS PI ERP(kW) Antenna diagramround (ND) /pointed (D) Polarizationhorizontal (H) /vertical (V) 88,1 Hrvatski radio - Radio Sljeme HRT-SLJE C31C 5 D (50°-90°) D (130°-140°) D (180°-200°) D (240°-250°) D (290°-310°) H/V 89,7 Antena Zagreb _ANTENA_ C30D 4,7 92,1 Hrvatski radio - 1. program HRT-HR_1 C201 120 ND 98,5 Hrvatski radio - 2. program HRT-HR_2 C202 ND 101,0 Radio 101 RADIO101 C30E D (40°-330°) 103,5 Hrvatski katolički radio _+_HKR_+ C204 ND

DAB+

Experimental test transmission until November 2018.

Channel Frequency(MHz) Multiplex Programs RDS PS ERP(kW) Radiation patternnon-directional/omnidirectinal (ND) directional (D) Polarizationhorizontal (H) vertical (V) 9C 206,352 OIV Croatia DAB+ Otvoreni radio Yammat FM Laganini DAB+ Antena Zagreb Domaći radio NG Narodni radio Radio Dalmacija HRT HR1 HRT HR2 HRT HR3 Radio Trogir Antena Zadar Otvoreni YammatFM Laganini Antena Doma?iN narodni RadDalma HR1 HR2 HR3 Trogir AntenaZd 5 ND H

DAB broadcast from this transmitter has been received several times in south-west Slovakia, 300 km away.

Digital television (DVB-T2)

Channel Frequency (MHz) Multiplex Programmes ERP (kW) Antenna diagramnon-directional (ND) /directional (D) Polarizationhorizontal (H) vertical (V) Modulation FEC Guard interval Bitrate (MBit/s) 25 506 MUX M1 HTV1 HD HTV2 HD RTL HD NOVA TV HD HRT3 HD HRT4 HD RTL 2 HD Doma TV HD 100 D (100°-360°) (suppression 10°-90°/7 dB) H 64-QAM (32K OFDM) 2/3 19/256 27,30 28 530 EVOtv EVOtv info EVOtv portal Al Jazeera Balkans CNN National Geographic NatGeo Wild Viasat Explore Viasat History Epic Drama Doku TV HD Viasat Nature HD HBO HD HBO2 HD HBO3 HD Cinemax Cinemax 2 Klasik TV TV1000 AXN Movie Generation RTL Living Kino TV Cinestar TV FOX FOX Life M1 FILM M1 GOLD Test 50 ND H 256-QAM (32K OFDM) 2/3 19/256 36,52 40 626 MUX M2 Sportska televizija HD RTL KOCKICA HD CMC HD JABUKA TV HD MrezaZG HD Z1 HD 100 D (100°-360°) (suppression 10°-90°/7 dB) H 256-QAM (32K OFDM) 2/3 19/256 36,52 48 690 EVOtv Da Vinci Laudato TV CineStar TV Premiere 1 HD CineStar TV Premiere 2 HD CineStar TV Action and Thriller CineStar TV Fantasy Fox Crime Fox Movies Toon kids Baby TV Boomerang Cartoon Network Nickelodeon Nick Jr. Channel Arenasport 1 Arenasport 2 Arenasport 3 Arenasport 4 Arenasport 5 Arenasport 6 HNTV 24Kitchen MTV VH1 DM Sat Jugoton RTL Crime RTL Adria RTL Passion Vivid 50 ND H 256-QAM (32K OFDM) 2/3 19/256 36,52

Gallery

See also List of tallest buildings in Croatia Medvednica

References

External links Radiotelevizijski toranj "Sljeme" (A detailed description with schematics)