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Nick Leeman 2021-11-03 21:46:46 +01:00
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4
.obsidian/workspace vendored
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@ -88,6 +88,7 @@
"active": "bc6e8ad9aa0f44c3", "active": "bc6e8ad9aa0f44c3",
"lastOpenFiles": [ "lastOpenFiles": [
"School/Analyse/Layers/1. Physical Layer.md", "School/Analyse/Layers/1. Physical Layer.md",
"School/Analyse/Images/encoder.png",
"School/Analyse/Network Types.md", "School/Analyse/Network Types.md",
"School/Analyse/Layers/5. Session Layer.md", "School/Analyse/Layers/5. Session Layer.md",
"School/Analyse/Layers/6. Presentation Layer.md", "School/Analyse/Layers/6. Presentation Layer.md",
@ -95,7 +96,6 @@
"School/Analyse/Layers/4. Transport Layer.md", "School/Analyse/Layers/4. Transport Layer.md",
"School/Analyse/Layers/3. Network Layer.md", "School/Analyse/Layers/3. Network Layer.md",
"School/Analyse/Layers/2. Datalink Layer.md", "School/Analyse/Layers/2. Datalink Layer.md",
"School/Analyse/OSI Model.md", "School/Analyse/OSI Model.md"
"School/Analyse/Comminucation Mediums.md"
] ]
} }

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School/Analyse/Layers/1. Physical Layer.md
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@ -18,9 +18,14 @@ Waves, like you would see on a lake, or in electrical cables are made when a phy
Waves by them self store no real information. Waves by them self store no real information.
## Signal ## Signal
A signal is a wave that holds information. (wave + data = signal) A signal is a wave (carrier) that holds information. (wave + data = signal)
## Encoder The carrier is a type of wave we add our information to. In most cases a sine wave is used as a carrier wave,
A encoder converts
![[Pasted image 20211103214144.png]] ![[encoder.png]]
A encoder converts analog or digital information in signals that can be transmitted across different [[Comminucation Mediums]]
The process of adding data to a carrier wave is called Modulation
## Modulation