I. IntroductionThe standard maritime ship radio is an essential device for ship communication, operation, and safety management, operating in the VHF (Very High Frequency) band. Observant individuals will notice that this specialized radio typically has three built-in frequency groups: INT (International), USA (United States), and CAN (Canada). These are used by ships in actual work to select specific channels based…

Approval and Compliance Requirements for the Use of Radio EquipmentRadio stations transmit messages wirelessly by modulating voice and various information onto high-frequency carrier signals. Today, they are ubiquitous, with mobile phones being a prime example of radio application. It may not be widely known, but the frequency resources of radio bands in each country are very tight. Each band has…

IntroductionThe IC-A120 is an updated version of the IC-A110 aviation mobile radio, which has added a Bluetooth module, optional Bluetooth function, freeing hands and facilitating control. The multi-function keys under the LCD implement menu-style programming and quick wake-up of common functions, combined with manual channel programming, etc., it is the first choice for aviation frequency mobile and fixed communication. Implementation…

Functional advantagesThe ID-52E is a new generation of feature-rich amateur handheld radios launched by Japan’s ICOM company. It not only has dual-band main and sub displays, built-in GPS to show the current location, SD card recording, Bluetooth, data transfer and USB charging interfaces, but also integrates a waterfall signal display function for the first time, which visually shows the signal…

IntroductionAmong the many types of marine radios, careful users will find that high-level radios with DSC digital selective calling have a DISTRESS key and a pre-coded MMSI (Maritime Mobile Service Identity) code. When you need to initiate a distress call in an emergency, you must have a pre-set MMSI code to make the call, which facilitates the rescue of the…