KENWOOD KAIROS Multi-Protocol Repeater
KAIROS is an ETSI compliant multi-protocol repeater that implements all modulation/demodulation and filtering processes through algorithms in the Digital Signal Processor (DSP).
This method provides repeatability, the perfect matching of repeaters and can handle different protocols. The Kairos repeater offers true multi-protocol flexibility as the addition of a new protocol or standard can be achieved with a software upgrade.The sophisticated software and hardware platform used in KAIROS makes it a powerful and robust Base station or Repeater. Its LINUX core provides IP interfaces to other devices and networks and allows for a high level of customisation.
KAIROS is designed for infrastructure applications, especially where radio frequency pollution is an issue and offers excellent coverage and clear communications with rejection of adjacent channel interference.
Multi-protocol
It performs the automatic switching between analog and digital modulation, according to the type of incoming signal.
IP multisite multicast and simulcast
It integrates all the necessary algorithms (such as, IP interfaces, voting system, automatic equalization, protocol coherence, synchronization recovery, network managing, etc.) to realize professional multisite networks.
UHF linking
It provides RF interconnections among sites where the IP backbone is not available, carrying analog and digital signals. It is a mixed linking network (IP+UHF).
System redundancy
It can be assembled as 1+1 (Main + Stand-by) and it can support the backup Master functionality (a Slave station that automatically replaces the failed main Master, restoring all network functions). Its LINUX platform allows a distributed elaboration in the system, thus increasing its flexibility and reliability.
Soft diversity reception
It is a receiving technique based on the vectorial treatment of two or more incoming signals. It strongly enhances the covering range and the clearness of a digital mobile communication system, removing fading holes.
SIP/RTP-IP ports
This direct connection with the radio network offers a wide range of benefits to Control Rooms, such as SIP/RTP-IP dispatching systems; automatic roaming between different networks and/or repeaters (mobility); automatic phone/radio bridging, etc.
Powerful remote control
Thanks to its remote detailed monitoring and configuration tool, setup and network maintenance operations are simplified and sped up. The remote control tool also ensures secure software upgrades, IP backbone diagnosis and a continuous assessment of the entire radio system. KAIROS also supports the SNMP protocol for direct reporting to a generic surveillance system.
Light and ruggedized
It sports a very compact size and weight. Thanks to its environmental robustness, KAIROS can perform in uncomfortable sites, and thanks to its low power consumption, it is considered a “green” solution, as it can be powered simply by a small solar panel.
Reliable
The power supply input is protected from short circuit, under/over/inversion voltage and transient. Its RF power devices are protected from reverse power, over temperature and over current, allowing a 100% duty cycle.
KAIROS System Configurations
A DMR Tier 2 KAIROS based solution using Kenwood DMR hand-portable and mobile radios including the NX-5000 and NX-3000 Series equipment can be configured for both Multi-Frequency and Simulcast operation and supports multi-protocol (analogue/digital) functionality, IP-connected or conventional dispatcher and phone patching and SIP telephony.
- Dual Timeslots Fixed Station/Repeater
- Analogue and DMR Tier 2 Simulcast or Multi-Frequency IP-linked Base Station
- Analogue and DMR Tier 2 Simulcast or Multi-Frequency RF-linked Base Station
- Single site DMR TIER 3 Trunked System
- Multisite Simulcast or Multi-Frequency DMR TIER 3 Trunked System
- Superior software stability due to Linux platform
- All modulations and protocols are software implemented, offering maximum flexibility and upgradability
- Customised modems
*ETSI TS 102 361 DMR refers to three Tiers:
- DMR Tier I: Unlicensed
- DMR Tier II: Conventional
- DMR Tier III: Trunked
For full KAIROS specifications, please click here.
DMR Simulcast Networks in Maritime Applications
Kairos offers numerous proven solutions for the maritime sector: ATIS Encoding and Decoding, Simplex Simulcast, Analogue Simulcast Subnetworks and RSSI via SW or HW connectivity. Click here to learn more.
Providing Communications for a Multi-Sport Challenge
Held every February in the South Island of New Zealand, the Kathmandu Coast to Coast World Championship is one of the world’s longest running multi-sports events. Click here to learn more.
Communications for the Swiss Mountains’ Major Railway
The locomotive driver needs constant and reliable connection to the Rail Control Center for communication. Click here to learn more.
Multi-protocol
It performs the automatic switching between analog and digital modulation, according to the type of incoming signal.
IP multisite multicast and simulcast
It integrates all the necessary algorithms (such as, IP interfaces, voting system, automatic equalization, protocol coherence, synchronization recovery, network managing, etc.) to realize professional multisite networks.
UHF linking
It provides RF interconnections among sites where the IP backbone is not available, carrying analog and digital signals. It is a mixed linking network (IP+UHF).
System redundancy
It can be assembled as 1+1 (Main + Stand-by) and it can support the backup Master functionality (a Slave station that automatically replaces the failed main Master, restoring all network functions). Its LINUX platform allows a distributed elaboration in the system, thus increasing its flexibility and reliability.
Soft diversity reception
It is a receiving technique based on the vectorial treatment of two or more incoming signals. It strongly enhances the covering range and the clearness of a digital mobile communication system, removing fading holes.
SIP/RTP-IP ports
This direct connection with the radio network offers a wide range of benefits to Control Rooms, such as SIP/RTP-IP dispatching systems; automatic roaming between different networks and/or repeaters (mobility); automatic phone/radio bridging, etc.
Powerful remote control
Thanks to its remote detailed monitoring and configuration tool, setup and network maintenance operations are simplified and sped up. The remote control tool also ensures secure software upgrades, IP backbone diagnosis and a continuous assessment of the entire radio system. KAIROS also supports the SNMP protocol for direct reporting to a generic surveillance system.
Light and ruggedized
It sports a very compact size and weight. Thanks to its environmental robustness, KAIROS can perform in uncomfortable sites, and thanks to its low power consumption, it is considered a “green” solution, as it can be powered simply by a small solar panel.
Reliable
The power supply input is protected from short circuit, under/over/inversion voltage and transient. Its RF power devices are protected from reverse power, over temperature and over current, allowing a 100% duty cycle.
KAIROS System Configurations
A DMR Tier 2 KAIROS based solution using Kenwood DMR hand-portable and mobile radios including the NX-5000 and NX-3000 Series equipment can be configured for both Multi-Frequency and Simulcast operation and supports multi-protocol (analogue/digital) functionality, IP-connected or conventional dispatcher and phone patching and SIP telephony.
- Dual Timeslots Fixed Station/Repeater
- Analogue and DMR Tier 2 Simulcast or Multi-Frequency IP-linked Base Station
- Analogue and DMR Tier 2 Simulcast or Multi-Frequency RF-linked Base Station
- Single site DMR TIER 3 Trunked System
- Multisite Simulcast or Multi-Frequency DMR TIER 3 Trunked System
- Superior software stability due to Linux platform
- All modulations and protocols are software implemented, offering maximum flexibility and upgradability
- Customised modems
*ETSI TS 102 361 DMR refers to three Tiers:
- DMR Tier I: Unlicensed
- DMR Tier II: Conventional
- DMR Tier III: Trunked
For full KAIROS specifications, please click here.
DMR Simulcast Networks in Maritime Applications
Kairos offers numerous proven solutions for the maritime sector: ATIS Encoding and Decoding, Simplex Simulcast, Analogue Simulcast Subnetworks and RSSI via SW or HW connectivity.
Providing Communications for a Multi-Sport Challenge
Held every February in the South Island of New Zealand, the Kathmandu Coast to Coast World Championship is one of the world’s longest running multi-sports events.
Communications for the Swiss Mountains’ Major Railway
The locomotive driver needs constant and reliable connection to the Rail Control Center for communication.
KENWOOD KAIROS: Key applications
Multisite Simulcast or Multi-frequency DMR TIER III Trunking System
The TIER III Controller can manage a group of IP-linked networks, thus realizing a multisite, multicarrier (simulcast or multi-frequency) system.
Analog and DMR Tier II Simulcast or Multi-frequency IP-linked Base Station
KAIROS supports IP connections among base stations to achieve multisite hierarchical systems. The role of a device can be set as Master, Secondary Master, Slave or Backup Master. A Master manages up to 32 Slaves/Secondary Masters, allowing unlimited expansion of a radio network.
Analog and DMR Tier II Simulcast or Multi-frequency RF-linked Base Station
KAIROS can be configured as a “LAN extender” supporting the RF narrowband connection among different sites. It is the perfect solution when the connecting distance is very large, or when the radio link path is not in line of sight.
Single site DMR TIER III Trunking System
With a built-in SW Agent Tier III Controller, channels can be efficiently shared among all users, according to the ETSI standard Tier III Trunking protocol. No additional HW is needed for small and medium size systems. An external TSC needs to be added only to large and complex networks.
Dual Timeslots Fixed Station/Repeater
KAIROS can manage two DMR timeslots, using a single antenna. From a dispatching point, it can be configured to supply access to an external radio network. By simply adding a duplexer, KAIROS can be configured as a standalone repeater.
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