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Standard User soapysoutar
(learned) Wed 11-Nov-15 19:42:35
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Estimate of maximum speed


[link to this post]
 
Iíve had FTTC since January and then my initial line stats from the Sky Hub were;

Downstream Upstream
Connection Speed 39998 kbps 9999 kbps
Line Attenuation 15.6 dB 0.0 dB
Noise Margin 24.4 dB 28.28 db

I went for the Sky 40/10 package and have been very happy with it, but I am now toying with going with the Pro 80/20 package instead. My current line stats are

Downstream Upstream
Connection Speed 40000 kbps 9999 kbps
Line Attenuation 15.8 dB 0.0 dB
Noise Margin 15.3 dB 20.20 dB

With these figures and from what Iíve been able to read, I feel I probably wonít get the full 80/20 but more like 60/20. Would this seem correct?

The values given on the BT availability checker are

High Low High Low
FTTC Range A (Clean) 80 62.7 20 20
FTTC Range B (Impacted) 76.5 51.9 20 15.8

Stephen.
Standard User BatBoy
(sensei) Wed 11-Nov-15 19:56:21
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Re: Estimate of maximum speed


[re: soapysoutar] [link to this post]
 
That attenuation is right on the edge of getting max speed or not. I think the estimate is correct - somewhere between 60-80. Plus you'll be helped by G.INP.
Standard User soapysoutar
(learned) Wed 11-Nov-15 20:25:06
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Re: Estimate of maximum speed


[re: BatBoy] [link to this post]
 
Thanks for confirming that. Is there anyway to tell if G.INP is enabled, given I have a Sky Hub?


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Standard User BatBoy
(sensei) Wed 11-Nov-15 20:26:52
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Re: Estimate of maximum speed


[re: soapysoutar] [link to this post]
 
It looks like it is. If your cabinet is a Huawei then chances are that G.INP is enabled.
Standard User MHC
(sensei) Wed 11-Nov-15 21:43:14
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Re: Estimate of maximum speed


[re: soapysoutar] [link to this post]
 
At 16.6dB attenuation I get around 76Mbps. So at 15.6dB you "should" be looking at 79-80Mbps - it will ultimately depend on the noise levels which could push it don, so look towards 70-80 Mbps. And you could be looking at full Upstream


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

M H C


taurus excreta cerebrum vincit
Standard User mlmclaren
(fountain of knowledge) Wed 11-Nov-15 23:07:32
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Re: Estimate of maximum speed


[re: soapysoutar] [link to this post]
 
It looks to me like you'll sync at max speed or just below...

It also look like G.INP is enabled on your connection as your current sync is 40000 where a connection without G.INP maxes out at 39999..
Standard User BatBoy
(sensei) Wed 11-Nov-15 23:19:25
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Re: Estimate of maximum speed


[re: mlmclaren] [link to this post]
 
In reply to a post by mlmclaren:
where a connection without G.INP maxes out at 39999 39998
Fixed that for you. Due to the INP codewords that you just don't get with G.INP wink
Standard User mlmclaren
(fountain of knowledge) Wed 11-Nov-15 23:21:26
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Re: Estimate of maximum speed


[re: BatBoy] [link to this post]
 
In reply to a post by mlmclaren:
where a connection without G.INP maxes out at 39999 39998


For Reference: http://s1119.photobucket.com/user/44_bh/media/OR_sta...

Edited by mlmclaren (Wed 11-Nov-15 23:28:42)

Standard User BatBoy
(sensei) Wed 11-Nov-15 23:34:24
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Re: Estimate of maximum speed


[re: mlmclaren] [link to this post]
 
That picture was taken prior to G.INP being implemented unfortunately wink
Standard User mlmclaren
(fountain of knowledge) Wed 11-Nov-15 23:35:54
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Re: Estimate of maximum speed


[re: BatBoy] [link to this post]
 
Exactly my point... did you not read my post?
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