# Type 517 radar

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Type_517_radar
> Markdown URL: https://mediated.wiki/source/Type_517_radar.md
> Source: https://en.wikipedia.org/wiki/Type_517_radar
> Source revision: 1347071098
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

**Type 517 radar** is believed to be an A-band/[VHF](/source/VHF) air search [radar](/source/Radar) widely deployed on [People's Liberation Army Navy](/source/People's_Liberation_Army_Navy) surface vessels with 4 [antennas](/source/Antenna_(radio)) 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](/source/P-8_radar) '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](/source/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](http://www.eo-irsystems.com/sale-7838642-high-accuracy-air-land-surveillance-radar-system-of-long-range-detection.html)
- [Beijing Leiyin Electronic Technology Development Co.](http://www.leiyin.com.cn/indexe.html) [Archived](https://web.archive.org/web/20060803203616/http://www.leiyin.com.cn/indexe.html) 2006-08-03 at the Wayback Machine
- [SUR17B meter wave air warning radar](http://www.leiyin.cn/en/product_s.asp?id=55) [Archived](https://web.archive.org/web/20120328034801/http://www.leiyin.cn/en/product_s.asp?id=55) 2012-03-28 at the Wayback Machine

---
Adapted from the Wikipedia article [Type 517 radar](https://en.wikipedia.org/wiki/Type_517_radar) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Type_517_radar?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.