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| subject: | why AXE is better than S12 for 3360 |
AM> As you can imagine, the 3429 symbol rate of V.34 requires about 3429 Hz AM> of AM> bandwidth to the 3 dB points, therefore with a low frequency cut-off of AM> 244 Hz AM> and a centre frequency of 1950 Hz, one needs a high frequency cut-off of AM> 3672 AM> Hz, which is higher than the 3400 Hz 3 dB cut-off of S12-S12 connections AM> and AM> still higher than the 3500 Hz 3 dB cut-off of AXE-AXE connections. AM> The V.34 probe tones of 3450 Hz and 3600 Hz some-how have to figure out AM> the AM> high frequency roll-off of such a connection... This explains the Major blunder I made, when I recently asked Telstra to move me from AXE to S12, in the hope that I might improve my connects. Due to being able to Train my line cards. Things were bad before......now they are worse. Suicide comes to mind Russell --- Terminate 4.00/Pro* Origin: Electron Migration (3:640/305.55) SEEN-BY: 50/99 620/243 623/630 640/201 206 230 305 306 311 702 820 821 822 SEEN-BY: 640/823 829 711/401 409 410 413 430 808 809 899 932 934 712/515 SEEN-BY: 713/317 714/906 800/1 @PATH: 640/305 820 711/409 808 934 |
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