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Forums » O Canada! » Canadian » Canadian Broadband » SNR Drops at regular intervals
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Any ISP selling the Siemens SpeedStream 4100b, 4200? »
« AEI in Montreal now throttling P2P upload ?  

HiVolt
29
Premium
join:2000-12-28
Toronto, ON
clubs:
·TekSavvy Solutions..
·Bell Sympatico

Re: SNR Drops at regular intervals

Man, it's gotten bad lately. But still 100% stable with no loss of sync.. I really have no idea how this modem can hold at below 5dB SNR for this long, on a daily basis. It goes as low as 1.5-2.0dB.
--
GO LEAFS GO!

Bicephale

join:2005-09-24

Re: SNR Drops at regular intervals

Friendly salutations, HiVolt,

This is what i should have put my money on!

Tell me it's on sale in a Montreal store!!!


HiVolt
29
Premium
join:2000-12-28
Toronto, ON
clubs:
·TekSavvy Solutions..
·Bell Sympatico


1 edit

Re: SNR Drops at regular intervals

Hehe, i dunno where to get one in Montreal... I'm sure you can find one on eBay. It's a SS4200 D240, I can provide with the exact details on the modem sticker on monday if you wish.

I'm using firmware A8M I can provide it for you if you acquire this modem.

BTW, I still haven't been able to isolate the source of the interference. I tried a different AC adapter for the modem, and it didn't make a difference.

The only thing I can think of is that our building is right beside an auto-body shop, and they are open from 8am to 6pm, and during the day there is a very loud noise coming from the back of their building, where it is adjacent to ours, and the phone lines run thru there... It's some kind of fan, or compressor, or something... I'm wondering if the motor or the electric wiring of that device is creating this wave of huge interference during the day...
--
GO LEAFS GO!

Bicephale

join:2005-09-24
·TekSavvy Solutions..

Re: SNR Drops at regular intervals

Click for full size
HiVolt - SNR Margins
Hi HiVolt,

I'm becoming more curious each time but i realized
only ISPs are authorized to sell it and only a new
unit freshly shipped by the manufacturer would do;
perhaps i'll ask a company like VelCom about it...

Your theory makes sense but i'd like to understand
how it works and what's the cure!  I've inclosed a
superposition of the SNR Margin curves you posted,
it's like someone flipped a switch and the periods
match so closely it can't be a simple coïncidence.

HiVolt
29
Premium
join:2000-12-28
Toronto, ON
clubs:
·TekSavvy Solutions..
·Bell Sympatico

Re: SNR Drops at regular intervals

said by Bicephale See Profile :

Hi HiVolt,

I'm becoming more curious each time but i realized
only ISPs are authorized to sell it and only a new
unit freshly shipped by the manufacturer would do;
perhaps i'll ask a company like VelCom about it...
Unless you're picky about it being brand new, there's no reason why a used one with the proper firmware loaded won't do...

Your theory makes sense but i'd like to understand
how it works and what's the cure!  I've inclosed a
superposition of the SNR Margin curves you posted,
it's like someone flipped a switch and the periods
match so closely it can't be a simple coïncidence.
I'm going to go over to the shop next door on Monday, and ask them if I could take a peek at the machine that makes all that noise, perhaps see if its electrical wires run close to the exterior wall. The buildings don't touch, there's maybe 1foot of space in between.
--
GO LEAFS GO!

HiVolt
29
Premium
join:2000-12-28
Toronto, ON
clubs:
·TekSavvy Solutions..
·Bell Sympatico

Re: SNR Drops at regular intervals

»search.ebay.ca/search/search.dll···tegory0=

A few entries priced reasonably...
--
GO LEAFS GO!
Forums » O Canada! » Canadian » Canadian BroadbandAny ISP selling the Siemens SpeedStream 4100b, 4200? »
« AEI in Montreal now throttling P2P upload ?  


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