Type 517 radar

Type 517 radar is believed to be an A-band/VHF air search radar widely deployed on People's Liberation Army Navy surface vessels with 4 antennas in two crossed-brace supported pairs, one above the other, mounted in pairs on each side of a single tubular support carried on the turning gear.

Similar to the Russian P-8 'Dolphin'/KNIFE REST radar which China manufactures and deploys for the HQ-2 surface to air system complex, it is believed that Type 517 has similar capabilities and specifications. The system is manufactured by the Beijing Leiyin Electronic Technology Development Company (Chinese: 北京雷音电子技术开发有限公司).

Specifications

Technical Specifications

System Band: meter-band
Beam width: 5° (H), 30° (V)
Scan coverage: 360°×30°
Range: 350 km against 4 m² RCS target; 100 km against 0.1 m² RCS Stealth aircraft
Accuracy: range error ≤200m, angle error ≤1°
Processing capacity
- Multiple tracking: ≥ 20 pcs
Antenna
- Antenna : Yagi-Uda array
- Rotation speed: 6 RPM
Transmitter / Receiver
- Frequency: 180–210 MHz (meter-band)
- NF: <6 dB
Power Supply
- AC: 220VAC (150~250 VAC)
- Power consumption: 25 kW
Features
- Non-coherent pulse compression (NCPC) system
- Moving target automatically detection
- Long range air surveillance
Other reported names:
- Spider (export)
- SUR17B

References

↑ Feng, Wenyuan, ed. (2011). 驅逐艦科技知識. 下 [Destroyer Technology Knowledge. Part 2] (in Chinese). 遼海出版社 (Liaohai Publishing House). p. 102. Retrieved 16 August 2026.

External links

High Accuracy Air / Land Surveillance Radar System Of Long Range Detection
Beijing Leiyin Electronic Technology Development Co. Archived 2006-08-03 at the Wayback Machine
SUR17B meter wave air warning radar Archived 2012-03-28 at the Wayback Machine

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[feng-1] Feng, Wenyuan, ed. (2011). 驅逐艦科技知識. 下 [Destroyer Technology Knowledge. Part 2] (in Chinese). 遼海出版社 (Liaohai Publishing House). p. 102. Retrieved 16 August 2026.