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echo: aust_modem
to: Mark Griffiths
from: Russell Brooks
date: 1996-11-01 06:40:14
subject: Re: Modem Questions

RB>>> Has any one got access to BOTH a courier AND a Rockwell 33600???

 RB>>> Could they please connet both mmodems together with a 1 or 2 metre

 RB>>> modular cable and do a line probe with the courier?

 MG>  

 RB>>> I wager that the Rockwell will not actually get up to 33600, due to

 RB>>> its inferior Trellis code utilization.

 MG>  

 MG>> My Uni has a bank of 33.6k Netcomm rack modems.  Almost invariably, I 

 MG>> have 



 RB>> Your Uni.... Do you mean Griffiths Uni

 MG> No, to be pedantic, the univeristy that I attend - Univeristy of

 MG> Queensland.



Oh dear, I thought I had met an Aristocrat



 MG>

 MG>> connected at 31.2k.  I have chatted with one of the guys in charge of



 RB>> This seems the norm when connecting a Courier to a Rockwell



 MG> Did I also mention that I have never had a 33.6k connect?  According to 

 MG> my 

 MG> Courier, the SNR is always somewhere between 36.4 and 37.1 dB which is 

 MG> only

 MG> a tad too low for a 33.6k connect.  I tend to get very few blers on 31.2k 

 MG> 

 MG> connects, which would be expected with that SNR and the fact that the uni

 MG> modems are on ISDN.

 MG>  

 MG>> Another problem with these modems is the fact that they do not offer 

 MG>> asymmetrical link rates.

 RB>> Cheap skates

 MG> Yeah!  Rotten Rockwells :-)



It makes me angry that these big companies will not work in harmony.

The end result ALWAYS suffers and we all just put good money after

bad, in the hope that we get what was advertised and nothing less.



In the perfect world, once 33600 modems were invented, EVERYONE should

be connecting 100% to everyone else at 33600 rock solid...but no....



Russell

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