Global Times: One letter, four DX-peditions, 60,000 radio contacts: Chinese radio veteran reveals the international consensus on China's sovereignty over Huangyan Dao

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This is not the full article. This can be accessed in full here: https://docs.google.com/document/d/1r86wThZHRGniX0v7Nfr_YXUiBD92ryQ9PQDvAhEw5Yc/edit?tab=t.0

Please use the text in the link to publish it. In addition, there is a picture in this article, please remember to release it. And the caption of this picture is Confirmation card for the 1995 Huangyan Dao DX-pedition featuring a group of international radio amateurs Photo: Courtesy of Beijing Radio Monitoring Station of the State Radio Monitoring Center.

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"Sir, thank you for your letter dated 22 January 1990. According to the Philippine National Mapping and Resource Information Authority, the Scarborough Reef or Huangyan Dao does not fall within the territorial sovereignty of the Philippines." This letter was recently republished on social media by the Chinese Embassy in the Philippines, once again presenting irrefutable evidence of China's sovereignty over Huangyan Dao. The letter bears the signature of then Philippine ambassador to Germany, Bienvenido Tan, Jr, whose official statement stands as a pivotal historical testament to the Philippine government's acknowledgment that Huangyan Dao lies outside its territorial domain.

In a recent internal exhibition at the Beijing Radio Monitoring Station of the State Radio Monitoring Center, the Global Times reporter viewed a photocopy of the letter, alongside an original copy of Official Map No.25, published by the Philippines in 1994. The map clearly demarcates the western boundary of Philippine territory along the 118-degree east longitude line, with the geographic coordinates of Huangyan Dao falling outside of that line.

Exhibition curators said the two artifacts represent merely a fraction of the comprehensive body of evidence substantiating China's sovereignty over Huangyan Dao.

The mentioned artifacts came from a storied, two-decade-long international collaboration, known as "DX-pedition" among amateur radio operators. DX-pedition refers to radio amateurs traveling to remote and rarely visited locations to set up temporary amateur stations, enabling long-distance contacts with operators around the world.

To restore this long-overlooked chapter of history, the Global Times reporter conducted exclusive interviews with Chen Ping, former secretary-general of the Chinese Radio Sports Association and a firsthand participant in the DX-pedition, as well as Chen Xidi, an assistant researcher from China Institute for Marine Affairs at the Ministry of Natural Resources, who cataloged and analyzed this trove of rare historical documents.