Product overview
Guangdong Zhongke Ruitai Intelligent Technology Co., Ltd.’s ZKRT-RA08W is an aircraft-mounted radar sensor for measuring height above ground and distance to objects beneath the aircraft. It uses a highly integrated system-on-chip architecture with FMCW operation and a MIMO antenna array comprising four transmit and four receive antennas. Intended host platforms include UAVs, helicopters and small airships. Its height and distance output supports hovering, takeoff, landing and low-altitude work, with industrial inspection, low-altitude mapping and security operations among its intended applications.
The radar occupies a 136 × 88 × 19.66 mm envelope and weighs 163 g, defining the space and mass needed for aircraft integration. Its configuration lists UART, RS485, RS232, RS422 and CAN interfaces, a typical 12 V supply within a 9–24 V range, and typical consumption of 1.5 W. Detection extends from 0.3 to 800 m, with accuracy varying by height. The horizontal and vertical fields of view are ±12° and ±16° at -6 dB; operating limits are -40 to 85 °C and 5–95% RH.
Specifications
| Specification | Value & conditions |
|---|---|
| Manufacturer and model | Guangdong Zhongke Ruitai Intelligent Technology Co., Ltd. ZKRT-RA08W |
| Product type and purpose | Compact millimeter-wave altitude radar for UAVs. |
| Processing architecture | Highly integrated system-on-chip architecture. |
| Operating frequency | Minimum 76 GHz; typical 77 GHz; maximum 81 GHz. |
| Transmit power (EIRP) | Typical 11 dBm. |
| Data output refresh rate | Typical 10 Hz; maximum 20 Hz. |
| Operating mode | FMCW+MIMO. |
| Horizontal field of view | ±12°.At -6 dB. |
| Vertical field of view | ±16°.At -6 dB. |
| Distance measurement accuracy below 100 m | 0.1 m.H less than 100 m. |
| Distance measurement accuracy between 100 and 300 m | 0.5 m.H greater than 100 m and H less than 300 m. |
| Distance measurement accuracy above 300 m | 0.005%*H.H greater than 300 m. |
| Minimum detection distance | 0.3 m. |
| Maximum detection distance | 800 m. |
| Communication interfaces | UART, RS485, RS232, RS422 and CAN. |
| Output content | Height and distance information. |
| Overall dimensions | 136 × 88 × 19.66 mm. |
| Product weight | 163 g. |
| Antenna count | 4 TX / 4 RX. |
| Operating temperature | -40 to 85 °C. |
| Operating humidity | 5% to 95% RH. |
| Operating voltage | Minimum 9 V; typical 12 V; maximum 24 V. |
| Power consumption | Minimum 1.4 W; typical 1.5 W; maximum 1.6 W. |
| Intended host platforms | Intended for integration on unmanned flight platforms, helicopters and small airships. |
| Measurement applications | Measures vertical height above ground and separation from objects below the aircraft, supporting hovering, takeoff, landing and low-altitude operations. |
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