đ Key Concepts
⢠Facsimile (fax) in radio communications is about transmitting printed images or text so they can be reproduced at the receiving end.
⢠How radio facsimile (radiofax/WEFAX) is used for weather charts and maps at sea.
⢠Difference between still pictures on a screen, characters forming a picture, and printed images on paper for permanent record.
đ Think About
⢠Which option clearly involves sending an image so that it can be reproduced as a hard copy at the receiving station?
⢠Which choices talk about things shown on a screen only versus printed on paper?
⢠Facsimile is often used for weather charts and maps at seaâhow are those normally received and kept on board?
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Before You Answer
⢠Identify which option specifically mentions printed pictures rather than just images on a screen or characters.
⢠Check which description best matches getting a permanent paper copy of charts or images.
⢠Eliminate any choices that only deal with live video or ordinary text characters without clear reference to printed images.