Caltta DMR Conventional System
advanced 1U IP networked digital & analogue repeater. Offering to voice paths in digital mode, so double channel capacity for no extra investment when compared to legacy analogue systems.
Digital Voice with Better Audio Quality
Digital voice processing reduces the impact of environmental noise on voice quality, allowing users to make clearer calls, and can be used for complicated work scenarios with constant changes.
High Spectrum and Power Efficiency
With DMR two-slot TDMA technologies, PR900 allows a single carrier with a bandwidth of 12.5 kHz to support two independent calls, with each time slot occupying a bandwidth of 6.25 kHz, which reduces transmission time in half, and saves battery power consumption by 40%, effectively prolonging the standby time of DMR radios.
Build Your Own PMR Network for a Great Saving
Better coverage experience makes your PMR network investment less expensive and saves your budget for both CAPEX and OPEX.
Rich Services of Caltta DMR
Besides basic PTT services, PR900 also supports text messages, status messages, map-based location services, call recording, etc, to enrich the user experience.
High Security and Reliability
Professional encryption algorithms as well as service protection mechanisms such as authentication and remote stun, help to ensure the data security and reliability of the DMR system and end user’s life safety to the utmost extent.
Standard DMR Products Embrace Interconnection
Caltta is a member of the DMR Association, and our PR900 repeater is fully compliant with DMR standards, which can interconnect with any other DMR system and radios that comply with DMR standards.
Analogue Compatible Design
Smart digital-analogue automatic detection mechanism ensures legacy analogue radios can be used with our PR900, to guarantee customer’s historical investment to the greatest extent.
Repeater Operation Maintenance Center (ROMC)
Viewing real-time information and alarm messages of each repeater. Remote reading and remote resetting the repeater. Log management and statistics.
Suitable for connecting multiple separate facilities
Multi-repeater IP networking provides greater signal coverage.
Terminals can roam & access different repeaters, to communicate seamlessly across sites.
Open to the 3rd-party dispatcher based on AIS protocol.