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Standard User deleted
(deleted) Thu 23-Jan-14 19:58:25
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Re: Tandy DSL twisted pair cable.


[re: deleted] [link to this post]
 
I would have thought the noise rejection given by the twisted pair is the main advantage of this cable, a secondary consideration would be the thickness of the copper. I have just replaced mine with some from connektgear.co.uk and the SNR improvement is immediately apparent.
Standard User deleted
(deleted) Thu 23-Jan-14 20:03:01
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Re: Tandy DSL twisted pair cable.


[re: deleted] [link to this post]
 
Totally agree with you there and the thicker copper will present a lower resistance even more so if it is multi strand.
Standard User deleted
(deleted) Thu 23-Jan-14 20:42:51
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Re: Tandy DSL twisted pair cable.


[re: adslmax] [link to this post]
 
Thanks adslmax, yes I have been keeping an eye on it since I plugged the cable in earlier there has been a lot less errors. BTW I have the 1m cable as the 0.5m wouldn't reach and I cant really move it around. The only thing I could is wall mount but I don't want to do that.
downlaod upload
CRC errors 114 0 0 0
FEC errors 15 7 0 0
HEC errors 17 0


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Standard User Zarjaz
(knowledge is power) Thu 23-Jan-14 21:25:24
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Re: Tandy DSL twisted pair cable.


[re: deleted] [link to this post]
 
You don't want to be using multi strand stuff.

Standard User deleted
(deleted) Thu 23-Jan-14 22:03:40
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Re: Tandy DSL twisted pair cable.


[re: deleted] [link to this post]
 
When you remove the DSL cable from modem and replace it with Tandy twisted pair your are going to sync higher or lower depending on how many error's the DLM has seen since the last re-sync, you can't just point this down to DSL cable you need look at the long term stats to see if it was the cable or just because of a forced re-sync.
Standard User RobertoS
(sensei) Fri 24-Jan-14 00:45:51
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Re: Tandy DSL twisted pair cable.


[re: deleted] [link to this post]
 
Where did you get that idea from? Sounds like rubbish to me.

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Standard User deleted
(deleted) Fri 24-Jan-14 00:48:45
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Re: Tandy DSL twisted pair cable.


[re: deleted] [link to this post]
 
As a RF engineer I can see that a cable that rejects interference at a passive level will have a benefit.
The alien signal will need to be causing a problem and be present in the same amplitude at the time of both testing a twisted and non twisted cable .
The problem with radio waves/RF is that it attaches its self to a cable or any other metallic object and will bounce up and down the cable/object causing harmonics and this is what causes the host signal to be distroyed. Once the harmonic/s hits a desired frequency that matched the wave length of the object the signal is allowed to escape.
The basis of a twisted cable is that the injected/alien signal is not allowed to be reflected up and down the cable destroying the host signal.
When an alien signal is injected into a twisted cable the following happens.
On the first twist the signal couples to the other cable in the twist but in an opposite phase, On the next twist the two signals meet but are in opposite phase to one an another. The laws of RF is that equal (same frequency) and opposite( the same signal in an opposite phase) will cause cancellation.
The alien signal is destroyed by the laws of physics.

I have worked designing military vehicles using twisted cables and the vehicle have been test by MIRA and passed harsh EMI testing.
The twisted cable is not a maybe or a theory it is a hard fact. cat5 cat 6 in IT use it. In vehicles Canbus and LIN use it.

It works!
Standard User deleted
(deleted) Fri 24-Jan-14 00:50:32
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Re: Tandy DSL twisted pair cable. *DELETED* *DELETED*


[re: RobertoS] [link to this post]
 
Post deleted by noppix1
Standard User deleted
(deleted) Fri 24-Jan-14 00:52:43
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Re: Tandy DSL twisted pair cable.


[re: RobertoS] [link to this post]
 
In reply to a post by RobertoS:
Where did you get that idea from? Sounds like rubbish to me.


I have to agree! An uneducated guess!
Standard User deleted
(deleted) Fri 24-Jan-14 00:59:59
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Re: Tandy DSL twisted pair cable.


[re: Zarjaz] [link to this post]
 
In reply to a post by Zarjaz:
You don't want to be using multi strand stuff.


The most desired Cat6 cable is multi strand, The best RF cable is multi strand. Would you care to share the science.(Other than its hard to crimp).

I did not mean this to be aggressive lol smile

Edited by deleted (Fri 24-Jan-14 01:14:19)

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