What are the barriers of electronic communications systems?

[cure9185]

I need to know the main barriers of electronic communication system... thanks

 

[klystron]

Re: What are the barriers of electronic communications syste

Information can be communicated by to physics propogation models viz :
Newtonian or electromagnetic (wave mechanics).

Examples of Newtonian commuication links:
audio sound
ultrasonics
underwater sound (sonar)
Mediums : air, water, solids

Examples of electromagnetic communications :
visable light
infra red light
radio waves ( HF VHF UHF micro wave .....)
Mediums: conductors, ether, wave guides

 

[throwaway18]

Re: What are the barriers of electronic communications syste

Do your homework yourself.

Shannon's law. Path loss. Noise.

Added after 2 hours 18 minutes:

Speed of light.

 

[cure9185]

Re: What are the barriers of electronic communications syste

It is not my homework... I just want to clarify what our teacher told us. His answer is language and distance and I dont think that his answer correct. I read from a book that language and distance is the barrier for human communication (in the history of communication). Human communication is different from electronics and communication system right? What really are the main barriers?