It's a thought. Downstream power is normally a lot higher than upstream.

Anyone considered cross talk issues in this mix?

In reply to a post by Anonymous:

I would also like to know what ISP's currently do Annex M?

I have Annex M with O2 Pro (no longer available) with a 3dB target SNR.
I use the outright Annex M winner from this comparison.

Here are the number for my line (approx 1300-1400m);

DSL Up 16859 kbps / 2508 kbps

DSL Line Status:
noise margin upstream: 3 db
output power downstream: 21 db
attenuation upstream: 14 db
tone 0- 31: 00 00 00 07 9b cd ee ff ff ff ff ff ff ff ff ff
tone 32- 63: fe ee ee ee ed dd dd cc cc cc cb bb 00 00 00 00
tone 64- 95: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 96-127: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 128-159: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 160-191: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 192-223: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 224-255: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 256-287: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 288-319: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 320-351: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 352-383: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 384-415: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 416-447: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 448-479: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 480-511: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
noise margin downstream: 3 db
output power upstream: 15 db
attenuation downstream: 25 db
tone 0- 31: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 32- 63: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
tone 64- 95: 89 bb dd de ef ff ff ff ff ff ff ff ff ff ff ff
tone 96-127: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
tone 128-159: fe ff ef ee ee ee ee de ed ee ee dd dd dd dd dd
tone 160-191: ed dd de dd de dd dd ed dd dd dd dd dd dd dd 2d
tone 192-223: dd dd dd dd dd dd dd dd dd b8 cd dd dd dd dd dd
tone 224-255: dc dd dd dd dd dd dd dd dd dd dd dd dd dd aa cd
tone 256-287: dd dd dd dd dd c7 bd dd dd dd dd db b9 59 bc dd
tone 288-319: dd dd dd dd dd dd dd db dd dd dd dd dd dd dd dd
tone 320-351: dd dd dd dd dc bc cb ab b8 28 ab bb bb bb bb bb
tone 352-383: bb a9 97 50 57 9a ab bb ba ab bb bb bb bb bb bb
tone 384-415: bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb
tone 416-447: bb bb bb bb bb bb ba ab bb bb bb bb bb bb b9 aa
tone 448-479: 99 99 aa a9 99 99 99 99 99 99 99 99 99 99 00 00
tone 480-511: 00 00 00 00 00 00 00 00 00 00 66 66 66 55 55 55

ZyNOS Firmware Version: V3.40(ANZ.6) | 04/08/2009

When using the supplied router, the sync rates are approx 17200/2000.




London

Milton Keynes

Mines 27

In reply to a post by Anonymous:

Should I go and purchase a v3 DG834G or is there better routers on the market now?

I think you should, if/when you get Annex M. The router gives the same kind of sync speeds on Annex A though. If anyone is ever looking for a good router for Annex A I would recommend the Billion Bipac 7800n.

In reply to a post by Anonymous:

Should I go and purchase a v3 DG834G or is there better routers on the market now?

I'm not sure how many Anon posters are in this thread, but whoever posted this - if you are considering moving to Be or using their service through a reseller, that would be a disaster.

The v4 is very good on Be, v1, v2, v3, and v5 are very poor. Only the v4 has a Broadcom chipset, and only Broadcom chipset routers are good on the Be network.

I used a PN, which is Broadcom, and had a fractionally lower (Annex A) connection speed than the supplied box, but higher throughput. Plus I tweaked the margin.

The v3 blows away any broadcom router for annex m sync i grabed 2239bps upstream that was without gaming mode or 3 db profile

pretty amazing tbh but thats about the only thing its good for.

http://img600.imageshack.us/i/bbfsddfs.png/

Edited by epyon (Tue 18-Oct-11 10:41:11)

I wonder how the the Billion 7800N's Annex M upload speed stack up against the rest being Broadcom also.

OP here. Confused by epyon post. He has a much better line than me but only 12,000 download?

Anyway, afew days go I set custom snr to 3 db. It went to max 3.4 at night but now seems happy to be under 3. Am I right in saying I am setting a low SNR to get more download which will in turn get a better upload speed? If not, why else am I lowering SNR? Below is the current stats.

http://img249.imageshack.us/img249/8780/router1.png

Or would I be better using my old 585 router which gives me 23.5 db download attenuation and an average of 1215 upload?

Thats annex m mode on the v3 on the bebox i get like 14000/1900

also that 585 is meh i have one also i dont recommend

Edited by epyon (Tue 18-Oct-11 18:27:22)