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-   -   125M : Is this true in regards to a new Install? (https://www.cableforum.uk/board/showthread.php?t=33689106)

Kymmy 06-08-2012 08:27

Re: Is this true in regards to a new Install ??
 
Quote:

Originally Posted by BenMcr (Post 35460124)
No it's steel, with a copper coating

Which is cheaper and has more attenuation than copper :rolleyes:

As for skin effect at the frequencies used not all the current will be going through the copper with a proportion going through the steel.. Not a great deal though compared with lower frequencies..

Anyone here got zapped by the skin effect on SHF high power cable ;)

kwikbreaks 06-08-2012 08:38

Re: Is this true in regards to a new Install ??
 
Quote:

Originally Posted by internetuser (Post 35460222)
Me and my fiend will be doing a lot of gaming so it's more a matter of latency than speed.

So why did you chose cable over ADSL or better still if available FTTC?

ethan103 06-08-2012 10:24

Re: Is this true in regards to a new Install ??
 
Quote:

Originally Posted by kwikbreaks (Post 35460247)
So why did you chose cable over ADSL or better still if available FTTC?


What do you mean?

I have some of the lowest pings I have ever seen with my connection :/

kwikbreaks 06-08-2012 12:28

Re: Is this true in regards to a new Install ??
 
What about jitter?

Eeeps 06-08-2012 13:06

Re: Is this true in regards to a new Install ??
 
You get about 0.2dB attenuation per meter. The extra length of cable will not be important unless you are already very distant from the street cabinet you connect to.

OP - do you know the distance from the cab?

qasdfdsaq 06-08-2012 17:35

Re: Is this true in regards to a new Install ??
 
Even if he is distant, it's VM's job to keep his levels in check not his.

hicks 06-08-2012 18:21

Re: Is this true in regards to a new Install ??
 
Quote:

Originally Posted by Pierre (Post 35460233)
Nobody likes a pedant.

Copper is the generic term for the cable.

Yes, there may be different compounds but we all call it copper. Ask any engineer/ tech and they'll call it copper.

It's a HFC network not a HFS or a HFCCS network ........

To be pedantic once more, the C in HFC is coax, not copper. I wouldn't call coax copper. I'd call it coax.

Anyway, @OP, it would really make very little difference either way. Having longer ethernet & shorter coax may make a tiny difference, but not so much that I'd go out of my way to make sure I had that setup.

ethan103 06-08-2012 23:57

Re: Is this true in regards to a new Install ??
 
Quote:

Originally Posted by kwikbreaks (Post 35460323)
What about jitter?


1 - 2 ms Jitter when pinging Australia on Pingtest :/

---------- Post added at 00:57 ---------- Previous post was at 00:56 ----------

Quote:

Originally Posted by Eeeps (Post 35460337)
You get about 0.2dB attenuation per meter. The extra length of cable will not be important unless you are already very distant from the street cabinet you connect to.

OP - do you know the distance from the cab?


The green cabinet is about 4 or 5 houses down on the corner.

qasdfdsaq 07-08-2012 12:04

Re: Is this true in regards to a new Install ??
 
The length of cable coming into your house will have negligible effect on ping and jitter, what matters is the people sharing what's on the other end of the cable.

ethan103 07-08-2012 23:41

Re: Is this true in regards to a new Install ??
 
Quote:

Originally Posted by qasdfdsaq (Post 35460693)
The length of cable coming into your house will have negligible effect on ping and jitter, what matters is the people sharing what's on the other end of the cable.


No one else uses the connection.

Just me.

qasdfdsaq 08-08-2012 00:08

Re: Is this true in regards to a new Install ??
 
That's not how cable works. All cable connections are merged with hundreds/thousands of others and your connection is shared by hundreds of users as well.

ethan103 08-08-2012 00:27

Re: Is this true in regards to a new Install ??
 
Quote:

Originally Posted by qasdfdsaq (Post 35461019)
That's not how cable works. All cable connections are merged with hundreds/thousands of others and your connection is shared by hundreds of users as well.


I meant in my home >.<"

Of course others share it but in my home it's just me :)

27monksbury 08-08-2012 07:55

Re: Is this true in regards to a new Install ??
 
Apparently a hollow copper pipe would carry the same current as a solid copper wire. It's the cross sectional area that matters. The saving costs of using steel in the middle is immense. The current is very low so heating up is not a problem

Kymmy 08-08-2012 08:03

Re: Is this true in regards to a new Install ??
 
Quote:

Originally Posted by 27monksbury (Post 35461038)
Apparently a hollow copper pipe would carry the same current as a solid copper wire.

It depends on the frequency.. DC most of the solid copper wire is used and there is little skin effect, where as when you get beyond Ghz most of it is on the skin.

qasdfdsaq 08-08-2012 16:18

Re: Is this true in regards to a new Install ??
 
Quote:

Originally Posted by internetuser (Post 35461021)
I meant in my home >.<

In response to my post which specifically said

"the other end of the cable."


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