Download Digital Modes II

Transcript
Page 3
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05/26/05
Step by step of a message transmission
1. The message is created by the Information source, or the Human control
operator, they may or may not be the same person, or device.
2. The Human places the message in the computer, either by typing it,
uploading, or reading a pre built file, such as a .txt file created with
notepad. it to the computer.
3. The computer codes the message and controls the transmitter to send it.
4. The message is transmitted using the sound card of the computer via the
Interface to the transmitter.
5. The Receiver collects the message.
6. The audio from the receiver is fed to the Interface.
7. The Interface converts the levels and matches the audio to the computer
sound card.
8. The computer decodes the audio and displays the message.
9. The human Operator passes the message to the Information Destination.
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