The Type 815A electronic reconnaissance ship is used for reconnaissance of electromagnetic information and optoelectronic information and providing intelligence support. It has a displacement of 6,000 tons and a length of 130 meters, and its main task is passive information collection and monitoring.
 
In 2022, it disabled the radar system and electronic countermeasure equipment of the USS Carl Vinson in the South China Sea. It is nicknamed "sea loiterer", reflecting its active performance and it often "comes uninvited".
 
The Liaowang-1 is a maritime comprehensive warning ship developed by China. It has powerful electronic reconnaissance and missile early warning capabilities and is considered one of the most advanced ships of the same type in the world.815A型电子侦察船用于电磁信息和光电信息的侦察以及提供情报保障。排水量6000吨，长130米，主要任务是被动收集信息和监听 。
在2022年在南海使美国的卡尔·文森号航母雷达系统和电子对抗设备失效。被昵称为“海上街溜子”，反映它的活跃表现，它常“不请自来”。
瞭望一号是中国研制的海上综合警戒舰，具有强大的电子侦察和导弹预警能力，被认为是当前世界上最先进的同类舰艇之一。