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Standard User john014
(newbie) Wed 16-Oct-13 11:46:15
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My FTTC: could someone offer some insight?


[link to this post]
 
Hi All,

Although I've frequented these forums quite a lot, I'm a newly registered user here, and I'm still learning about the technologies behind Fiber connections, and basic broadband technologies in general.

Long story short anyway, I'm not convinced that my line is all its cracked up to be, and although I get decent speeds, I'm sure I should get more as I'm not that far away from the cabinet or the exchange, and the estate I live on is fairly new too.

https://www.dropbox.com/sh/wjpauvj68kgjj03/TIra5h9TSe

I've included a link to my graphs if someone would be kind enough to take a look, especially at the QLN graph as it looks suspicious.

Thanks

John
Administrator MrSaffron
(staff) Wed 16-Oct-13 12:28:51
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Re: My FTTC: could someone offer some insight?


[re: john014] [link to this post]
 
67 Mbps connection is reasonable enough if you are within 200m (of telephone wire, which will be different to road distance) of the FTTC box

http://www.thinkbroadband.com/guide/fibre-broadband....

So probably less about the graphs and more seeing if line could be that actual length.

Andrew Ferguson, andrew@thinkbroadband.com
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User john014
(newbie) Wed 16-Oct-13 13:40:52
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Re: My FTTC: could someone offer some insight?


[re: MrSaffron] [link to this post]
 
Hi MrSaffron,

thanks for your reply, although I have already tried to determine my line length to the cab, the but the only figure I can come up with (from a BRAS Checker) is 1051m. Im assuming this figure is the total loop length.

Do you have any ideas how i could check my loop length?

Also do the QLN and HLOG graphs look normal then?

Thanks


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Standard User burakkucat
(experienced) Wed 16-Oct-13 13:59:43
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Re: My FTTC: could someone offer some insight?


[re: john014] [link to this post]
 
Your QLN graph does show a somewhat elevated noise floor due to (what I shall call) 'generalised mush' but there are no obvious big spikes from broadcast transmitters.

A 'good' QLN graph will be around -140 dBm/Hz across the majority of tones.

100% Linux and, previously, Unix.
Standard User 4M2
(knowledge is power) Wed 16-Oct-13 14:01:38
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Re: My FTTC: could someone offer some insight?


[re: john014] [link to this post]
 
Have you checked here https://www.btwholesale.com/includes/adsl/main.html ?Fibre speeds tend to look about right based on cabinet numbers and the distances from them. Probably need a WLR (BT based) line for that checker though...however adsl speeds tend to be rather conservative with that checker since it covers the entire line from the premises to the exchange.
Standard User ryant704
(member) Wed 16-Oct-13 14:20:28
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Re: My FTTC: could someone offer some insight?


[re: john014] [link to this post]
 
Can you post Connection stats and pbParams? Cheers

The graphs show a tiny bit of interference but hard to tell as they aren't long enough and enough data hasn't been provided.
Administrator MrSaffron
(staff) Wed 16-Oct-13 15:24:21
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Re: My FTTC: could someone offer some insight?


[re: john014] [link to this post]
 
Ignoring the router and looking at the real world

1. Identify cabinet number via https://www.btwholesale.com/includes/adsl/main.html
2. Physically locate it and estimate a slightly wobbly walking distance

If that is in the 200m region, then not much more to be done.

Andrew Ferguson, andrew@thinkbroadband.com
www.thinkbroadband.com - formerly known as ADSLguide.org.uk
The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User john014
(newbie) Wed 16-Oct-13 15:48:15
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Re: My FTTC: could someone offer some insight?


[re: burakkucat] [link to this post]
 
In reply to a post by burakkucat:
Your QLN graph does show a somewhat elevated noise floor due to (what I shall call) 'generalised mush' but there are no obvious big spikes from broadcast transmitters.

A 'good' QLN graph will be around -140 dBm/Hz across the majority of tones.


Burakkacat,

thank you for the technical insight, its very much apreciated. and in my book, 'Mush' is a technical term =)

I have also uploaded the pbparams and connection stats to dropbox for you to look at.

Im on cab 25. please dont hate on me guys, but i already get a faster connection/bandwidth than the checker states i should get, which is why i have never trusted it. (57.2mbps)

Thanks
Standard User john014
(newbie) Wed 16-Oct-13 15:49:44
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Re: My FTTC: could someone offer some insight?


[re: MrSaffron] [link to this post]
 
In reply to a post by MrSaffron:
Ignoring the router and looking at the real world

1. Identify cabinet number via https://www.btwholesale.com/includes/adsl/main.html
2. Physically locate it and estimate a slightly wobbly walking distance

If that is in the 200m region, then not much more to be done.


Ha lol, MrSaffron, I'm far too lazy to do that =)

I know the cab is number 25 and its at the entrance to my estate, I'm terrible at estimating distances so I wont guess for now....

Thanks
Standard User john014
(newbie) Wed 16-Oct-13 15:51:42
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Re: My FTTC: could someone offer some insight?


[re: john014] [link to this post]
 
Also,

on a separate note, has anyone determined whether Beattie have removed the webGUI from the HG612 in the latest firmware?

I'm not brave enough to remove and re-ball a chip....

Thanks
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