The transmission of printed pictures for permanent display on paper .

The transmission of still pictures by slow-scan television.

The transmission of characters by radioteletype that form a picture when printed.

The transmission of printed pictures for permanent display on paper .

The transmission of video by television.

What is facsimile?

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🔍 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.

💭 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 sea—how are those normally received and kept on board?

✅ 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.

🔍 Key Concepts

💭 Think About

✅ Before You Answer