// Workers AI · dad joke modeWhy was Type 517 radar in a relationship? It was a scanning match.

Side view of Type 517 radar deployed on Type 053H3 Frigate taken during IMDEX 2007

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

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