Caltta Digital Multi-Mode Terminal GH900

The GH900 is a large-screen, multi-mode digital trunking terminal meticulously designed by ZTE based on the needs of frontline professional users. With its rich PDT trunking walkie-talkie features, it supports automatic switching between public and private networks. The PDT private network signal reception is highly sensitive, featuring simple and convenient operation, clear and loud sound, long-lasting endurance, and effectively meeting frontline communication requirements. The device adopts a single-knob walkie-talkie layout, combining professional buttons with large-screen touch interaction, a high-strength bicolor body, and high-grade waterproof sealing, ensuring reliable performance in harsh environments. The GH900 delivers a comprehensive cross-network multi-mode digital communication experience, providing solid support for dependable communication.

Supports PDT professional narrowband cluster walkie-talkie, adheres to PDT narrowband cluster standards, and is suitable for dedicated PDT networks in public security and emergency services. It also features off-grid direct communication, ensuring effective communication support in remote environments and emergency situations.  Supports wide-area walkie-talkie communication, enabling voice and video walkie-talkie services across public networks via wide-area servers and applications. Leveraging the extensive coverage of public networks, it facilitates voice and video interconnection between different regions and carriers.  Narrowband-broadband integration with dual-mode dual standby supports both narrowband PDT networks and broadband carrier networks, enabling dual-mode dual standby. Different network capabilities can be utilized for various service applications, maximizing terminal performance by combining the strengths of each network.  Compact and portable design with an optimized profile, the body width is only 69mm. Combined with a lightweight structure weighing 380g, it ensures comfortable grip and easy portability, ideal for prolonged field work.  High signal reception sensitivity and extensive public network walkie-talkie range: Through carefully matched and optimized hardware circuits and an external integrated helical antenna, the device achieves high reception sensitivity, enabling broader communication connectivity across narrowband and wideband networks.  Clear and loud audio: Optimized audio circuits and structural sound chambers, paired with high-quality noise-reducing audio encoders, ensure loud sound while maximizing voice fidelity. Even in noisy environments, it accurately identifies callers and delivers clear call content.  High-capacity battery with long endurance: Standard 4000mAh battery and power-saving digital design significantly extend terminal usage time, meeting the needs of frontline personnel for extended work periods. Optional low-temperature battery ensures continuous communication in cold regions.  Dual-screen display: Featuring one main and one auxiliary screen for power efficiency and user convenience, it provides a more intuitive operating experience.  Professional human-machine interaction design: Based on the usage habits of professional users, it adopts a professional button + single knob + large-screen touch interaction flow, aligning with the operational and maintenance model of professional terminals for quick and proficient user handling.  Rich and distinctive supplementary service functions: Supports BeiDou positioning for precise location services. Features fall detection alerts for emergency situations, effectively improving rescue efficiency and ensuring personnel safety. Equipped with front and rear cameras for dynamic image/video services. Supports NFC/Bluetooth/Wi-Fi for rapid industry application node connections and innovative services.  Durable and reliable quality: The device meets IP68 protection standards, making it suitable for outdoor work. It meets high reliability standards for multiple indicators such as impact, vibration, and solar radiation, making it suitable for various harsh working environments.