Caltta Professional Digital Explosion-proof Two-way Radio PH790Ex
Caltta Professional Digital Explosion-proof Two-way Radio PH790Ex
The PH790Ex Explosion-proof Version is a high-performance professional digital explosion-proof two-way radio meticulously developed by ZTE Caltta in compliance with PDR/DMR standards. It features outstanding explosion-proof safety performance, having obtained the Class ⅡB explosion-proof certification from a national authoritative institution, and can provide secure communication guarantees in flammable and explosive environments such as the energy and chemical industries. The PH790Ex Explosion-proof Version is equipped with rich intercom functions, excellent radio frequency performance, simple and convenient operation, clear and loud audio, and long-lasting battery life, which can fully meet the frontline communication demands. The whole device adopts the classic two-way radio layout with a screen/full numeric keypad interaction design, a high-strength dual-color body, a sturdy alloy frame, and a high-level waterproof seal, ensuring durable use in harsh outdoor environments. The PH790Ex Explosion-proof Version will bring users a comprehensive digital communication experience and provide solid explosion-proof support for safe production.
The PH790Ex explosion-proof series terminals are divided into PH790Ex U(1) and PH790Ex U(3) according to different frequency bands. Their technical indicators meet the requirements of GA/T 1056-2013 General Technical Specification for Police Digital Trunked (PDT) Communication System and the technical index requirements specified in GA/T 1366-2017 Technical Specification for Mobile Station of Police Digital Trunked (PDT) Communication System.
New explosion-proof marking: Ex ib ⅡB T4 Gb / Ex ib ⅢC T130℃ Db. Old explosion-proof marking: Ex ib ⅡB T4 Gb / Ex ibD 21 T130℃.
Operating frequency band: PH790Ex U(1): 400MHz～470MHz; PH790Ex U(3): 350MHz～400MHz. Frequency spacing: 12.5 kHz/20kHz/25kHz. Channel capacity: 1024. Communication distance: between 1000 meters and 3000 meters. Transmit power: 1W-5W, adjustable transmit power. Digital sensitivity (typical digital value): 0.18uV (5% BER).
Battery capacity: 3350mAh (standard battery) / 2900mAh (optional low-temperature battery).
Digital-analog compatibility: PDT standard compliant, supporting both digital and analog modes, including analog trunking, digital trunking, analog conventional, and digital conventional modes; supports ad-hoc networking to protect user investment and enable smooth network transition.
Security and confidentiality: Adopts the encryption chip developed by the First Research Institute of the Ministry of Public Security of China, which meets the requirements of the Ministry of Public Security's PDT specifications.
Clear visual experience: Equipped with a 2.0-inch display screen with 260,000 colors for high-definition images, featuring a transflective design that ensures visibility under strong sunlight.
Outstanding audio quality: Supports both NVOC and AMBE++ dual-mode vocoders, which can be switched via the terminal's local menu. With a precisely designed compact sound cavity and professional audio circuit, it delivers high-fidelity voice for an exceptional audio experience.
Positioning method: Adopts BeiDou-only independent satellite positioning.
Rich functions: It is fully featured with professional digital trunked intercom, man-down alarm, built-in Bluetooth 4.0, and software & hardware encryption. Customization is available for special industry applications. The positioning information can be uploaded to the on-site positioning platform in real time without relying on public networks, and customized development for special industry scenarios is supported.
Safe and reliable: It meets the IP68 waterproof and dustproof rating, remains undamaged after a 1.5-meter drop, and complies with national standard requirements, making it easy to cope with harsh environments.
Ambient temperature requirements: Operating temperature: -20℃ ~ +60℃ (with standard battery); -30℃ ~ +60℃ (with optional low-temperature battery). Storage temperature: -40℃ ~ +85℃.
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