Two cables data transmission

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Discussion Overview

The discussion revolves around the feasibility and implications of connecting two data transmission cables with different bandwidths and signal-to-noise ratios (SNR). Participants explore the potential advantages of utilizing a cable with a higher bandwidth and lower SNR requirements, as well as the technical considerations involved in such a connection.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant questions whether connecting two cables with different bandwidths (B1 and B2, where B2 > B1) could leverage the lower SNR requirements of the second cable (S2).
  • Another participant inquires if the SNR of a data transmission cable remains constant throughout its length or varies, and whether it correlates with the frequency of data transmission.
  • A participant raises several technical questions regarding the context of the cables, including what limits the bandwidth of each cable, the definition of SNR, the presence of inherent noise sources, transmission signal levels, attenuation, and the quiet line SNR at the receiver.
  • One participant challenges the assumption that a higher bandwidth cable (B2) necessarily implies a better SNR (S2 > S1) and suggests that the improvement from paralleling cables may be negligible if the SNR is already adequate.

Areas of Agreement / Disagreement

Participants express differing views on the relationship between bandwidth and SNR, and whether connecting the two cables would yield significant benefits. The discussion remains unresolved with multiple competing perspectives on the technical feasibility and implications of the proposed connection.

Contextual Notes

Participants highlight the need for additional context regarding the specific characteristics of the cables, including limitations on bandwidth, definitions of SNR, and other technical parameters that could influence the discussion.

iamnew
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okay guys i have a small problem relating to network data transmission

i have two cables

cable 1 :- Bandwidth = B1 and SNR = S1
cable 2 :- Bandwidth = B2 and SNR = S2

Assume that B2 > B1

Cant i connect these two cables together and take advantage of lower SNR ratio requirements of the cable 2 ?

Will i need some sort of frequency translator device to match the two difference bandwidth capabilities of the two wires ?
 
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signal to noise ratio

Also,

Is the signal to noise ratio of a data transmission cable be constant throughout the cable or does it change in a undefined manner ?

Also does it have a relationship with the frequency of data transmission ?
 
Last edited by a moderator:
iamnew said:
okay guys i have a small problem relating to network data transmission

i have two cables

cable 1 :- Bandwidth = B1 and SNR = S1
cable 2 :- Bandwidth = B2 and SNR = S2

Assume that B2 > B1

Cant i connect these two cables together and take advantage of lower SNR ratio requirements of the cable 2 ?

Will i need some sort of frequency translator device to match the two difference bandwidth capabilities of the two wires ?

What is the context of the question? What kind of channels are we talking about? What is limiting the BW of each cable? And how are you defining the SNR? Is there an inherent noise source in each? What are the TX signal levels? What is the attenuation? What is the quiet line SNR at the RX amp?

(and is this schoolwork?)
 
Given B2 > B1, how do you know S2 > S1? Is the needed bandwidth greater than B1 or the needed SNR greater than S1? In general, without knowing the details of your problem, if your SNR is better than marginal, the amount of improvement you would get by paralleling cables would be negligible.
 

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