Product overview
Guangdong Zhongke Ruitai Intelligent Technology Co., Ltd.’s ZKRT-ZJ02 combines relay, base-station and positioning functions in a handheld communications terminal. Intended for emergency scenarios in cities, mountains, tunnels and underground spaces, it establishes links automatically after startup without a public network. Its decentralized architecture supports automatic multihop networking and simultaneous voice, data and positioning communications. Multiparty full-duplex and half-duplex calling, AES-256 encryption and automatic coordination between upstream and downstream nodes support team communications. The terminal also transfers images, operational mapping and coordinate data.
The ZKRT-ZJ02 weighs ≤350 g including its battery and supports carriage on small UAVs, backpack deployment and vehicle-mounted relay operation. Its electrical interfaces support communications with UAV and robot ports. The terminal incorporates a 2.0-inch color display, numeric keypad, LED status indicator and 2400 mAh rechargeable lithium battery with Type-C charging. Operating time is ≥12 hours under the high-power transmission 5/90 condition, while line-of-sight transmission distance is ≥100 km at 2–5 W. It provides IP67 protection, with operating limits of -20°C to +55°C and ≤95% RH without condensation.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer and model | Guangdong Zhongke Ruitai Intelligent Technology Co., Ltd. ZKRT-ZJ02 handheld ad hoc network relay base station. |
| System architecture and applications | Lightweight communications terminal integrating relay, base-station and positioning functions for emergency scenarios in cities, mountains, tunnels and underground spaces. |
| Network establishment | Rapid decentralized, routerless, automatic multihop networking supporting simultaneous voice, data and positioning communications.Without a public network. |
| Network scale and coverage | More than 5000 ad hoc voice nodes; 8-hop transmission; single-hop transmission distance up to 130 km; coverage exceeding 1000 km; direct signal reach to underground level -4; ≤5000 radios per base station. |
| Encryption | Supports AES-256 encryption. |
| Node coordination | Automatic networking between upstream and downstream nodes supports coordinated operation across multiple nodes. |
| Device weight | ≤350 g.Including battery. |
| Environmental protection | IP67; waterproof, dustproof and shock-resistant. |
| Deployment and startup | Supports small-UAV carriage, portable backpack deployment and vehicle-mounted relay operation; automatically establishes communications links after startup without public-network support. |
| Operating frequency and modulation | 120 MHz–700 MHz; digital QPSK modulation. |
| Communications mode | Decentralized ad hoc networking with 8 hops; multiparty full-duplex and half-duplex calling. |
| Transmission distance | ≥100 km.Line of sight, at 2–5 W power. |
| Output power | ≤20 W. |
| Receiver sensitivity | ≤-125 dBm. |
| Signal-to-noise ratio | ≤1 dB. |
| Network topology and link formation | Supports various network topologies, decentralized ad hoc networking for multimodule terminals, and point-to-point, point-to-multipoint and multipoint-to-multipoint communications; automatically builds multihop links without a public network or manual route configuration. |
| Relay functions and information transfer | Supports relay-base-station and digital-base-station functions; transfers voice, data and images, with operational mapping and coordinate-data transfer available without a public network. |
| Display | 2.0-inch color display with battery-level indication and noise-floor detection. |
| Controls and indicators | Full numeric keypad, built-in LED status indicator and one-button networking. |
| Drop protection | Dust, water and drop protection; IP67. |
| Electrical integration | Supports communications transfer through UAV and robot ports. |
| Battery | 2400 mAh rechargeable lithium battery. |
| Operating time | ≥12 hours.Under the high-power transmission 5/90 operating condition. |
| Charging and power management | Type-C charging, battery-level display and low-battery warning. |
| Interference resistance | Not lower than IP7. |
| Operating temperature | -20°C to +55°C. |
| Storage temperature | -40°C to +70°C. |
| Humidity range | ≤95% RH.Noncondensing. |
| Vibration resistance | Meets vibration-resistance requirements for portable military equipment. |
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