SNR & Attenuation levels on your ADSL line

After recent lighning experiences I decided to try re-routeing my ADSL
router via phoneline ant-surger filter.

The attenuation has increased from 18/11db(downstream/upstream) to 19/12db.
SNR held steady at 18.5db.

How do these levels compare with others (measured on a D-Link DSL504 less
than 1km from exchange).

The 504 was the only item attached to a phoneline that didn't sustain
damage - so it must be pretty well defended within.

Any downside to this 'belt & bracers' approach?

--
Stuart

On Wed, 16 Jul 2003 11:07:54 +0100 and in article <bf385s$ap1sj$1@ID-
65688.news.uni-berlin.de>, Stuart said...
> How do these levels compare with others (measured on a D-Link DSL504 less
> than 1km from exchange).

Well, those levels you indicate are very low (ie, very very good for
DSL)

--
CB

"Stuart" <(E-Mail Removed)> wrote in message
news:bf385s$ap1sj$(E-Mail Removed)...
> After recent lighning experiences I decided to try re-routeing my ADSL
> router via phoneline ant-surger filter.
>
> The attenuation has increased from 18/11db(downstream/upstream) to
19/12db.
> SNR held steady at 18.5db.
>
> How do these levels compare with others (measured on a D-Link DSL504 less
> than 1km from exchange).
>

Mine is 69/31 and SNR 3.5dB
Not a mistake - true, and at 7km away from the exchange - Smokin!

I know the max atten but does BT quote the worst SNR for good BB?

On Thu, 17 Jul 2003 18:21:32 +0100, "johnydeath"
<(E-Mail Removed)> wrote:

>
>"Stuart" <(E-Mail Removed)> wrote in message
>news:bf385s$ap1sj$(E-Mail Removed)...
>> After recent lighning experiences I decided to try re-routeing my ADSL
>> router via phoneline ant-surger filter.
>>
>> The attenuation has increased from 18/11db(downstream/upstream) to
>19/12db.
>> SNR held steady at 18.5db.
>>
>> How do these levels compare with others (measured on a D-Link DSL504 less
>> than 1km from exchange).
>>
>
>Mine is 69/31 and SNR 3.5dB
>Not a mistake - true, and at 7km away from the exchange - Smokin!
>
>I know the max atten but does BT quote the worst SNR for good BB?
>
Dunno, but don't tell BT about your installation!

What speeds are you getting?

Rob.
--
rob at robertwoolley dot co dot uk

"Robert Woolley" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> On Thu, 17 Jul 2003 18:21:32 +0100, "johnydeath"
> <(E-Mail Removed)> wrote:
>
> >
> >"Stuart" <(E-Mail Removed)> wrote in message
> >news:bf385s$ap1sj$(E-Mail Removed)...
> >> After recent lighning experiences I decided to try re-routeing my ADSL
> >> router via phoneline ant-surger filter.
> >>
> >> The attenuation has increased from 18/11db(downstream/upstream) to
> >19/12db.
> >> SNR held steady at 18.5db.
> >>
> >> How do these levels compare with others (measured on a D-Link DSL504
less
> >> than 1km from exchange).
> >>
> >
> >Mine is 69/31 and SNR 3.5dB
> >Not a mistake - true, and at 7km away from the exchange - Smokin!
> >
> >I know the max atten but does BT quote the worst SNR for good BB?
> >
> Dunno, but don't tell BT about your installation!
>
> What speeds are you getting?
>

Depends on times, smallest pipe the data has to pass through etc. I
regularly get 45-52k for MP3s, but at least it stays synched.
Not too many errors either - cut and paste the router details, hope it comes
out. I get 4dB SNR during the day!!!
Downstream Upstream
Line Status ADSL Link Speed 576 kbps 288 kbps
SNR 4.0 dB -
ATEN 69 dB 31 dB
Line Error ADSL layer FEC 9 0
CRC 18 969
ATM layer HEC 8 487
Frame Counter 5445847 5733144


Loop Distance: About 14 K ft.

On Mon, 21 Jul 2003 10:43:23 +0100, "johnydeath"
<(E-Mail Removed)> wrote:


>Depends on times, smallest pipe the data has to pass through etc. I
>regularly get 45-52k for MP3s, but at least it stays synched.
>Not too many errors either - cut and paste the router details, hope it comes
>out. I get 4dB SNR during the day!!!
> Downstream Upstream
> Line Status ADSL Link Speed 576 kbps 288 kbps
> SNR 4.0 dB -
> ATEN 69 dB 31 dB
> Line Error ADSL layer FEC 9 0
> CRC 18 969
> ATM layer HEC 8 487
> Frame Counter 5445847 5733144
>
>
>Loop Distance: About 14 K ft.
>
I'm about 1km from the exchange - cable run is 1.9km

from my router:

Solwise adsl> show perf
Downstream :
Capacity Occupation : 11 %
Noise Margin : 29
Attenuation : 36
Output Power : 12
Upstream :
Capacity Occupation : 37 %
Noise Margin : 25
Attenuation : 31
Output Power : 17

Rob.
--
rob at robertwoolley dot co dot uk