2. COMMUNICATION CHANNEL
• WHAT IS COMMUNICATION
CHANNEL ?
A path through which information is
transmitted from one place to
another known as communication
channel or medium.
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4. TYPES
GUIDED MEDIA
• Transmission of
broadcasted
information within
physical boundary
• Example :
Fiber optics, twisted
pair cable, coaxial
cable
UNGUIDED MEDIA
• Data transmission
through air
• It is also referred as
wireless
• Example :
Microwave, radio
communication
satellite etc
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5. DIFFERENCE
• GUIDED MEDIA
Bounded media
Physical media
Data transmission
through cabling
media
Specific path of data
signals
UNGUIDED MEDIA
Unbounded media
Wireless
Data transmission
through air
No specific path of
data signals
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12. MICROWAVES
Wavelength beyond
the visible and radio
waves
High towers
Distance b/w towers is
30 miles
Wide bandwidth
No wiring required
Used by mobile
companies
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13. COMMUNICATION
SATELLITE
Earth station send signals
Space station receive
signals
Signals retransmitted to
earth station
Signals microwave form
High speed of data
transmission
Broadcasting, mobile
phones ,weather tracking
etc
Expensive installation
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14. RADIO WAVES
• Radio is transmission of radio signals at
less than frequency of visible light
• Directed Waves
• Noise Concurrency
• Radio Wave's Directness
• Unlimited Range
• Interference
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