Caltta digital IP Repeater PR900

At the heart of the Caltta ecosystem is the compact 1U PR900 DMR digital & analogue radio relay station or commonly known as a repeater. With its multi-mode operation, single-channel analogue or in digital mode, the repeater permits two concurrent talk paths or virtual channels.

For up-to-the-minute reporting the PR900 sports a 2-inch colour LCD display.

The operational range can be further extended through the use of the inclusive IP network connection. By adding additional PR900s, mobile subscribers are able to freely roam between sites without having to manually switch channels. As the PR900 supports AIS, command and control software such as the Caltta IP dispatch PC software or 3rd party apps can be added to the communication bubble.

What is also appealing is the integral mains power supply unit which even has a 12-volt backup input and on mains 12-volt battery float charger.

Available in VHF & UHF

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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.

Key Features:-

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.

IP Connection
Extended Coverage
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.

Tech Specs

Digital Protocol ETSI TS102 361-1,-2,-3
Frequency VHF: 136-174MHz   UHF1: 400-470MHz
Power Output 1 Watt  50 Watt
Channel Capacity 1024
Channel Spacing 12.5/20/25KHz
Frequency Stability ±0.5ppm
Max Duty Cycle 100%
Operating Voltage AC100-240V@50/60Hz    DC13.2V±15%
Dimensions (W×H×D) 436mm×44.5mm×366.4mm
Weight 8.5Kg
Screen 2.0’ TFT LCD, 320×240