Caltta PR900 Digital Repeater
Super Coverage, Flexible Networking
Product Overview
The Caltta PR900 is a digital repeater designed for super coverage and flexible networking. It supports various communication scenarios and offers advanced features for reliable and clear voice transmission.
Specifications
| Category | Parameter | Value |
|---|---|---|
| General | Digital Protocol | ETSI TS 102 361-1, -2, -3 |
| Frequency | UHF1: 400-470MHz, UHF3: 350-400MHz, VHF: 136-174MHz | |
| Channel Capacity | 1024 | |
| Channel Spacing | 12.5kHz/20KHz/25KHz | |
| Max Duty Cycle | 100% | |
| Operating Voltage | AC100-240V @50/60Hz, DC13.6±20% | |
| Backup Power Supply | Support | |
| Size (H*W*D) | 436×44.5×366.4mm (Standard 19-inch 1U height frame) | |
| Weight | 8.5Kg | |
| Screen | 2.0-inch HD LCD, 320×240, 10 status LEDs | |
| Environmental | Operating Temperature | -30°C~+60°C |
| Storage Temperature | -40°C~+85°C | |
| Receiver | Sensitivity (Analog Typical) | 0.14uV (12dB SINAD) |
| Sensitivity (Digital Typical) | 0.14uV (5% BER) | |
| Adjacent Channel Selectivity | 65dB@12.5 kHz/75dB@25 kHz (TIA-603D); 65dB@12.5 kHz/75dB@25 kHz (ETSI) | |
| Intermodulation | 75 dB (TIA603D); 70dB (ETSI) | |
| Spurious Rejection | 80dB (TIA603D); 80 dB (ETSI) | |
| Blocking or Desensitization | 98dB (TIA603D); 95dB (ETSI) | |
| Hum and Noise | -40 dB@12.5KHz / -45 dB@25KHz | |
| Audio Distortion @ Rated Audio | <3% (Typical) | |
| Audio Response | +1~-3dB (TIA603D) | |
| Conducted Spurious Emission | -57 dBm (TIA603D) | |
| Transmitter | Frequency Stability | ±0.5ppm |
| Power Output | 1W-50W (UHF1/UHF3/VHF) | |
| FM Modulation | 12.5KHz:11K0F3E / 25KHz:16K0F3E | |
| 4FSK Digital Modulation | 12.5KHz Data Only: 7K60FXD; 12.5KHz Voice and Data: 7K60FXE | |
| Conducted/ Radiated Emission | -36dBm ≤1GHz; -30dBm >1GHz | |
| Modulation Limiting | ±2.5KHz @12.5KHz / ±5.0KHz @25KHz | |
| Adjacent Channel Power | -60dB@12.5KHz, -70dB@/25kHz | |
| FM Hum and Noise | -40dB@12.5kHz, - 45dB@/25kHz | |
| Audio Distortion @ Rated Audio | <3% (Typical) | |
| Audio Response | +1~-3dB(TIA603D) |
General Disclaimer: The specifications in this document are in accordance with the applicable standard test. Due to continuous technology development, Caltta may change the specifications without notice.
Features
Flexible Networking
Supports diversified scenarios including IP connection for extended coverage, simulcast for large coverage with fixed frequency, active link for wide coverage, and ECS (Enhanced Conventional System) for dynamic channel allocation.
High Security and Reliability
Employs professional encryption algorithms, authentication, and remote stun mechanisms to ensure data security, system reliability, and user safety.
Standard DMR Products Embrace Interconnection
As a member of the DMR Association, the PR900 repeater is fully compliant with DMR standards and interoperates with other DMR systems and radios.
Better Audio Quality
Utilizes digital voice processing to reduce environmental noise impact, resulting in clearer voice calls, ideal for noisy work environments.
High Spectrum and Power Efficiency
Leverages DMR two-slot TDMA technology, allowing a single 12.5 kHz carrier to support two independent calls, reducing transmission time by half and saving up to 40% battery power.
2.0-inch Color Display
Features a 2.0-inch HD color screen for convenient user review and operation.
Ultra Slim Design
Adopts a 1U design, halving the height of conventional repeaters for space-saving installation.
Easy Operation for Users
The 2.0-inch HD color screen enhances user experience for reviewing information and operating the device.
Digital and Analog Compatible
Smart digital-analog automatic detection ensures compatibility with legacy analog radios, protecting customer investments.
Rich Interfaces
Supports remote microphone access and provides a customization interface for third-party extension services.
Scenarios
The PR900 is suitable for a wide range of applications:
- Forestry
- Public Safety
- Firefighting
- City Management
- Sport Events
- Property Management
- Education
Device Description
The Caltta PR900 Digital Repeater is a compact, 1U rack-mountable communication device. Its front panel features a 2.0-inch HD color LCD screen displaying key information such as Group Name (e.g., 80010238), current status (e.g., Speaking: 00:12), and various operational indicators including P1, P2, ALM (Alarm), PWR (Power), TxA, RxA, TxB, RxB, Ana. Dig. (Analog/Digital mode), Data, and IP connectivity.
