Subelement A: — Topic :
Question 6A576
Element 6 (Radiotelegraph)If you receive a distress call signed by a call signal composed of five letters, could you determine thetype of craft which transmitted the signal?
Explanation
The length of an international call sign is a standardized indicator of the transmitting station's type, as governed by the International Telecommunication Union (ITU) Radio Regulations.
* **Aircraft stations** are typically assigned call signs with a five-letter suffix after their country prefix (e.g., G-XXXX, N-XXXX).
* **Ship stations** use call signs composed of four letters following their country prefix (e.g., WXYZ, GZAB).
* **Land stations** generally have three-letter call signs.
Therefore, if you receive a distress call, the number of letters in the call sign provides a strong clue about whether it originated from an aircraft, a ship, or a land station. All the options correctly describe these international call sign conventions.
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