Quora seems like basically a social media platform with algorithms as 
gatekeepers and for ranking answers.  See today’s Dilbert for advice on winning 
debates on social media.

 

From: AF <[email protected]> On Behalf Of [email protected]
Sent: Monday, February 25, 2019 9:20 AM
To: [email protected]
Subject: [AFMUG] OT quora

 

I answered a question about max data capacity of a coax:

First, it depends on the size of the cables. Coax has a cut off frequency that 
decreases with the diameter of the cable. Smaller diameter cables can convey 
more info. Then there is the Shannon equations  
<https://en.wikipedia.org/wiki/Channel_capacity> Channel capacity - Wikipedia

So noise, transmitter power, receiver noise figure etc all have to be taken 
into account.

But let’s consider a 1 inch coax. You might get 5 GHz through it. With very 
high order modulation you might get 16 bits per hertz. So 80 GBps in a lab 
setting may be possible.

But this does not even scratch the surface of what a fiber can do in a much 
smaller size. There is no good reason to use coax if you want high data rates 
over a distance. Fiber will always be better.

 

I got a notice that I had violated their spam policy and the answer was 
deleted....

 

Funny, wikipedia is spam I guess.  Not I know not to reference that evil spam 
wikipedia....

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