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 G.DMT or T1.413? which modulation?

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TSfillet
post May 25 2009, 01:06 AM, updated 17y ago

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i've been using streamyx for 7 years now..

in my area,

i can set the modem to connect either using G.DMT mode, or T1.413 mode.

my question is, what's the different? there's no different in the SNR margin 24db-26db....

the only difference is

G.DMT, got extra delay, 4ms (from the modem it says, crc ..blka bla bla interleaved)

T1.413 , don't have this CRC thing...

This post has been edited by fillet: May 25 2009, 01:06 AM
nders
post May 25 2009, 01:12 AM

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and one more: g.lite. although g.lite gives me better dsl sync, i can't actually feel the difference in actual use really...
wsummon2004
post May 25 2009, 08:44 AM

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maybe u can't feel the difference in malaysia biggrin.gif
lamode
post May 25 2009, 09:03 AM

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TS - if you dun mind to tel, where are you connect from?
BlueWind
post May 25 2009, 05:36 PM

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http://forums.guru3d.com/showthread.php?t=128066
skyxis
post May 26 2009, 12:15 AM

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no significant diff between g.dmt and t1.413 in malaysia
TSfillet
post May 31 2009, 02:25 PM

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for the past 4 days, i've been switching between T1.413 and Gdmt.

My Findings are:

1. When i Use GDMT mode, the modem will lose SYNC after about 20 hours.. and i get a new IP everyday.

2. When i Use ANSI T1.413, The modem Stay SYNC even after 35 hours... for 2 days, i've been on the SAME IP.
fabianz03
post May 31 2009, 04:58 PM

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conclusion?

T1.413 better than G.DMT?

 

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