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こちら Japan flag を選択して頂くと、言語設定が日本語に切り替わります。設定変更後は以下の機能が利用可能です。

  • 日本語版ウェブサイトへのクイックアクセスが可能となり、日本語の刊行物をご覧頂けます。

  • 日本語版が閲覧可能な刊行物や記事については、日本語が優先表示されます。表示言語については Japan flag をご参照下さい。

閉じる 言語設定を切り替えたい場合には、国旗のマークをクリックして下さい。

By selecting Japan flag, you have now set your language to Japanese. This has several benefits, including:

  • Providing quick access to our Japan page, which collates all our Japanese content in one place.

  • Ensures that content is presented to you in Japanese first, if we have an article, publication or webpage available in Japanese. Look out for the Japan flag indicators across the site.

Close If you’d like to change your language preferences again, simply click on one of the other flags.

点击选择 China flag,可将网站语言设置为中文。这能帮助您:

  • 快速访问我们的中国区页面,该页面将有网站内容的中文汇总。

  • 在我们的文章、出版物或者网页有中文版本提供的情况下,确保首先向您展示的是中文版本的内容。您可关注站点上的 China flag 按键。

关闭 点击任意其他国旗,可切换您的语言偏好。

By selecting China flag, you have now set your language to Chinese. This has several benefits, including:

  • Providing quick access to our China page, which collates all our Chinese content in one place.

  • Ensures that content is presented to you in Chinese first, if we have an article, publication or webpage available in Chinese. Look out for the China flag indicators across the site.

Close If you’d like to change your language preferences again, simply click on one of the other flags.

US Warns on GPS Interference

23 September 2020

The US Department of Transportation’s Maritime Administration (MARAD) has issued a new warning on GPS interference affecting commercial shipping following reported instances in eastern and central Mediterranean Sea, the Persian Gulf, and multiple Chinese ports.

MARAD advisory 2020-016 can be read here

The U.S. Transportation Command “Message for Industry” at https://go.usa.gov/xdSpq provides additional GPS interference information.

A reminder that North’s article on communications jamming – known as spoofing – can be read here.


13 August 2020

The US Department of Transportation’s Maritime Administration (MARAD) has issued a new warning on GPS interference affecting commercial shipping operating in the Persian Gulf, Strait of Hormuz, and Gulf of Oman.

The practice – known as ‘spoofing’ – is a form of communications jamming that can mislead the vessel with inaccurate GPS positioning. This has a number of potential consequences and could result in the vessel unintentionally entering a nation’s waters.

MARAD further warned that there have been reports of spoofed communications received by merchant vessels from “unknown entities falsely claiming to be US or coalition warships.” MARAD advises all vessels operating in this area to review security measures, ensure the vessel’s AIS is transmitting at all times and to monitor VHF channel 16.

According to CNN, the US Central Command which oversees US military operations in the region, issued a statement: “Vessels have reported GPS interference, bridge-to-bridge communications spoofing, and/or other communications jamming with little to no warning.”

The latest MARAD advisory can be read here.

North recently published an article on spoofing which can be read here.

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