Question 36D3

NAVTEX (Navigational Telex) broadcasts categorize messages using single-letter identifiers from A to Z. For example, 'A' indicates navigational warnings, 'B' meteorological warnings, and 'E' weather forecasts. To manage the volume of information received, NAVTEX receivers are designed to allow operators to selectively activate or deactivate these specific message categories. This enables the user to filter out information types that are not relevant to their current needs, such as non-essential warnings or forecasts for distant areas. Option A is incorrect because while receivers can select which transmitting stations to receive from (using their B1B2 identifier), de-selecting a station would reject *all* messages from it, not just *certain* types. Option B is incorrect as SELCALL (Selective Calling) is used in other marine radio systems like HF DSC, not for filtering NAVTEX broadcasts. Option C is incorrect as "00" is not a standard method for programming NAVTEX message rejection.