Odailjaci i veze d'o'o'

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MICROWAVE LINKS
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ANALOG MICROWAVE SYSTEM

• Used for TV Radio program transmission
• In use since 1965 -first TV and radio programs
• In 1974 second TV program
• Extended to 3 national TV channels, 3 national
• radio channels 8 local radio channels in
  the
• beginning of the nineties
• 1990 - First digitalization project delayed
  due
• to war damages replacement of transmitters

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DIGITAL MICROWAVE SYSTEM

• 1995 digitalization project
• 2Q/2002 Tender
• 1Q/2003 Contracts signed (SDH equipment-NEC and
  MPEG equipment-Scientific Atlanta)
• cca. 5.000.000,00 investment
• Complete system design

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SDH Equipment

• Microwave system STM-1 12(4)(11), 7(15)(21),
  FD 7SD
• 2DS-3 21E1 1st STM-1
• 3DS-3 2nd STM-1
• ADM protection in nodes
• Monitoring system for MW parts and for ADMs

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MPEG Equipment

• MPEG-2 coders and decoders (TV radio)
• Variable bit rates (depending on quality needed
  7,5 9 12 18 Mbps)
• 420 for TV distribution and news contribution
• 422 for TV studios exchanges and outside
  broadcasting
• ATM switching
• SNMP supervising and monitoring system - Rosa

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Infrastructure

• 20 major sites and 4 local sites
• Space problems (for antennas and equipments)
  parallel work (analog and digital microwave
  systems)
• Reconstruction of sites, air-conditioning
• 5 new towers (from 15 m to 65 m)
• Installation implemented by OIV- finished 3Q/2004.

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Digital Microwave System Q1 2005.
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Upgrading Q3 2005.

• Upgrade of microwave system to 21, partly 31
• STM Interconnection with Hungary and Slovenia
• Possibilities for leasing microwave capacities
  to Telecom operators, GSM operators and ISPs

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Upgrading Year 2006.

• Upgrade of microwave system to 51, partly 31
• STM Interconnection with Serbia and Montenegro
• Upgrade of MPEG equipment
• Total investment 4,8 M

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Upgrading Year 2006.

• Full protection
• Transition from analog to digital microwave use
  for broadcasters

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Upgrading Year 2007.

• Upgrade of microwave system to 71
• New microwave system 51 Ericsson extension and
  backup
• Full protection
• Turn off analog system in 2008.

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Digital Microwave SystemQ4 2007./Q1 2008.
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Lease line for Telecom operators and
broadcasters

• OIVs offers within its microwave system
• 2 Mbit/s or N x 2 Mbit/s
• 34 or 45 Mbit/s
• 155 Mbit/s
• Domestic and international connections
• Telecommunication network leasing

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Thank you for your attention