[Military and Military Subdimensions] Author: Sirius Rim of the Pacific Military Exercise (RIMPAC) is the world's largest multinational maritime joint military exercise hosted by the U.S. Pacific Fleet. China has also been invited to participate in the U.S. twice in 2014 and 2016

[Military and military sub-plane] Author: Sirius

Rim of the Pacific Military Exercise (rimpac) is the world's largest multinational maritime joint military exercise hosted by the US Pacific Fleet. China was also invited to participate in 2014 and 2016. The first US-led "Pacific Rim" military exercise. However, as the relationship between China and the United States has become delicate, the United States has never invited China to participate.

▲ Rim-Pacific military exercise 2024 ship formation posing for photos

This year's Rim-Pacific military exercise will be held around the Hawaiian Islands and around the Hawaiian Islands from June 27 to August 1. Held at Pearl Harbor, will have 40 people from 29 countries and regions A surface ship, three submarines, more than 150 aircraft and more than 25,000 people participated in the exercise. Different from previous years, the U.S. Navy will use live ammunition to sink a decommissioned "Tara" with a displacement of 40,000 tons in this year's Rim-Pacific military exercise. The amphibious assault ship USS Watt is widely interpreted by the outside world as a deterrent against China's possible future actions in the Taiwan Strait.

However, although we are not invited to participate in the exercise, we still go to join in the fun. The Type 815a electronic reconnaissance ship of the Chinese Navy, known as the "Sea Street (gai) Liuzi", is a frequent visitor to the "uninvited" almost every session. Let's go and watch it. After all, it is also known as the world's largest joint maritime military exercise. There are still many merits or things worth "learning" in the exercise content.

▲ There is a Chinese warship not far away from the Rim-Pacific Military Exercise 2024 formation

As expected, on July 25, many countries participated in the Rim-Pacific Military Exercise 2024. After the warships posed for routine photos, U.S. officials released photos of the exercise , as a result, the Chinese Navy’s Type 815a electronic reconnaissance ship suddenly appeared in the background of the photo, and the Type 815a electronic reconnaissance ship in the photo was quite close to the participating fleet. People who don’t know the truth may think that we are also invited to participate in the performance. of. Some military fans joked: "I feel relieved when I see such a rogue rabbit"...

▲ Chinese Navy Type 815a electronic reconnaissance ship

So, what is the Chinese Navy's Type 815a electronic reconnaissance ship? What's the background and what's interesting about it? What about the story? The 815a electronic reconnaissance ship is a multi-functional integrated reconnaissance ship independently developed and built by the Chinese Navy. It is mainly used to carry out reconnaissance of relevant electromagnetic information and photoelectric information and provide intelligence support. This type of electronic reconnaissance ship began construction around 2000, and has been called Type 815a since the second improved version. The Type 815a electronic reconnaissance ship is about 130 meters long, about 16 meters wide, with a draft of less than 7.5 meters and a full load displacement of about 6,000 tons. Its design uses stealth technology, which can effectively reduce the reflection area of ​​ radar and improve its own survivability. The

815a electronic reconnaissance ship is equipped with a variety of advanced electronic and radar systems, including photoelectric theodolite, tracking radar, shipborne electronic reconnaissance radar, shipborne electronic reconnaissance system and shipborne electronic reconnaissance helicopter. These devices enable it to conduct a wide range of electronic signal monitoring and analysis, from shortwave HF to ultra-high frequency X-band, covering almost all of the radio spectrum. In addition, Type 815a is also equipped with an optoelectronic tracking system, which is similar in appearance to the corresponding equipment of a naval destroyer and frigate, but is far larger in size. This is its basic equipment for monitoring opponents at a distance of hundreds of kilometers. This type of ship is also equipped with three large radomes, which can monitor and analyze electronic signals intelligence.

▲ The Chinese Navy’s Type 815a electronic reconnaissance ship

html The 2815a electronic reconnaissance ship has significantly improved in terms of electromagnetic compatibility and automation, and can better complete multi-dimensional and three-dimensional electronic reconnaissance missions. It widely detects the radio spectrum, from shortwave hf to ultra-high frequency x-band. As long as the enemy sends out any signal, 815a can sneak into it and monitor and analyze electronic communications. The Type 815a electronic reconnaissance ship has earned the nickname "Sea Street Slipper" due to its excellent performance and efficient intelligence collection capabilities. It can collect radar and communication signals in peacetime, and prepare for corresponding electromagnetic confrontation, deciphering enemy encrypted signals and exploring the enemy's communication frequency band rules. The intelligence database established through long-term accumulation and analysis provides solid material support for our navy to go to sea.

▲In previous years, the Chinese Navy’s Type 815a electronic reconnaissance ship appeared in U.S. military exercises

Some rumors on the Internet claim that the 815a electronic reconnaissance ship often "gives U.S. warships herding Pleasant Goats during exercises", "silently interjecting calls between U.S. troops and allies", etc. Although the operation does seem very exciting, from a practical point of view, the main task of the 815a electronic reconnaissance ship is to obtain intelligence by monitoring the opponent's radio frequency signal source, while the measurement and characteristic intelligence mainly refers to distinguishing the opponent's electromagnetic radio frequency. Type and nature of the information obtained. However, no matter what kind of intelligence it is, it is mainly based on passive collection of information and monitoring. Only when the opponent is not sure whether it is being monitored can the maximum reconnaissance effect be achieved. For this kind of electronic reconnaissance ship, silence is the greatest lethality.

▲ A short plot "pranked" by netizens (Source: Mu Xing Guan Hai Tian)

Overall, the Type 815a electronic reconnaissance ship is an important intelligence collection platform for the Chinese Navy. Its excellent performance and Efficient intelligence gathering capabilities enable It plays an important role in modern naval warfare. Whether acting alone or in collaboration with other ships, the Type 815a has demonstrated powerful electronic reconnaissance and jamming capabilities, providing strong support to the Chinese Navy.