SILO 3.2 Means of communication Flashcards
1
Q
What are the electrical communication modes ?
A
- Voice
- Computer based systems
- Imagery
- Video
- Database Technologies
2
Q
What are the telecommunication mediums ?
A
Electrical, visual and aural.
3
Q
What are the physical communication medium ?
A
Postal and hand carriage.
4
Q
What are the three factors that affect transmission capacity the most ?
A
Signalling speed, redundancy and bandwidth.
5
Q
What are the four types of communication links ?
A
Simplex, HDX, FDX and multiplex.
6
Q
Name some modulation systems.
A
AM, FM, PM, PulseM and SS.
7
Q
Name some PulseM systems.
A
PAM, PFM, PWM, PPM, PCM and DM.
8
Q
Name some SS techniques.
A
DSS (direct spread spectrum), FH and Chirp.
9
Q
Name 2 multiplexing techniques.
A
FDM and TDM.
