Hi Angus,

Angus Tong (Angus.Tong{at}p1.f841.n712.z3.fidonet.org) wrote:

> I was just wondering What LINK NAK errors were.. umm also what the stuff
> outputted from ATI11 on the USR's mean such as Near/Far Echo loss etc..
> Just curious.. I mean gotta learn it one day don't I?? :)

Near/Far Echo loss is due reflections on the transmission line.  You will get
a reflection from the local exchange (Near) and from other hybrids along 
the line (Far).  Most modems work out the loss during the training 
process.  By doing this they can compensate for the losses.  If you want 
to know the details grab a book on transmission line theory....

C-Ya

Damien
 


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