🚀 go-pugleaf

In article <42pkam$7oj@Sierra.onr.com>, Gary Davis <gdmedia@onr.com> wrote:
>    I just got a 28.8 modem and notice that my internet connection baud rate now 
>varies from a low of 16-something to (usually)24.0.  But never 28.8, not so far.  
>When I connect to AOL, it is 19-something or 24.0.  
>   I was told by my net provider that the actual rate with 28.8's varies with 
>telephone line conditions, and apparently I had a "noisy line".  So, exactly how 
>does that work?  Is there anything (within reason) I can do to increase my baud 
>rates to 28.8, or just take what I get as line conditions change from time to time? 
>  Did  my 14.4 always connect at 14.4 because line conditions are always at 
>least that good, or is there something invariable about 14.4 modems as 
>compared to 28.8's?

I myself have a USRobotics Courier Dual Standard 28.8 modem myself.  I 
have never gotten a true 28.8 connection.  Most of mine with Telesys 
(which also has USR modems) are at 26.4 or 24.0K.  And the reason for 
this, as your net provider said, is due to line conditions.  

The following informations is second-hand from a friend in NJ who works 
for AT&T.  The current phone line system only carries 64.0K of data across 
each line total.  28.8K is the most that can be devoted out of each line 
to data that our modems can use.  The other 35.2K is used for sustaining 
the connected and other things which the phone company must do on every 
phone call.  Since 28.8K is the maximum that can be squeezed through our 
current system, it depends on a completely "clean" connection.  If there 
is any background noise on your phone line, then you will not get a 28.8K 
connection.

I have also heard some talk about USR making another proprietary protocol 
to establish connections at something like 31.6K.  I have nothing in 
writing to back this up, and it's only rumor.  However, my question then 
is, if I've never gotten a 28.8K connection (and I live only 6 miles from 
where I'm calling), how can I expect to get a 31.6K connection?  *shrug*  
Just something to ponder...

-Mike

-- 
Mike Vitale - Delta Sigma Pi@Beta Kappa District Director 
UT LONGHORN BAND MEMBER! - University SCUBA Club & UT ACM member
Earth2 Fan!   http://www.cs.utexas.edu/users/rodney/
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