TIP: Click on subject to list as thread! ANSI
echo: hayes_modems
to: RICHARD TOWN
from: CRAIG FORD
date: 1996-09-04 06:49:00
subject: FACTORS AFFECTING THR

Richard Town wrote the following to Jim Palmer, and I quote (in part):
 RT> Thanx for the info.  But I don't know of any transmission speed
 RT> that will support 8: 1 compression on the fly. 
One can easily exceed that using D/GSZ's RLE mode for suitably redudndant 
data.
 RT> 1X30.TST is the ITU(t) recognised test file for testing this, 
.....snip, snip....
 RT> Are you really saying that this file (let's keep to the same
 RT> standard) will achieve a faster apparent effective thruput just
 RT> because your serial port/modem can work at 230k4?
Absolutely! One should achieve a transfer rate roughly equivalent to DTE/10 
when transferring the file.
 RT> If so, then that would be news to Joe F. at Skokie who reports:    
 RT>     --------------------------------------------------------  
 RT> Speed | 1X30.TST | 2X10.TST | 3X06.TST | 4X04.TST | 5X16.TST | 
 RT> ---------------------------------------------------------------  
 RT> 14400 |   10077  |    3974  |    2339  |    1710  |    6107  |  
 RT> 16800 |   10867  |    4635  |    2724  |    1996  |    7117  |  
 RT> 19200 |   10959  |    5260  |    3096  |    2283  |    8062  |  
 RT> 21600 |   10972  |    5983  |    3502  |    2565  |    9125  |  
 RT> 24000 |   10980  |    6635  |    3899  |    2851  |   10121  |  
 RT> 26400 |   10987  |    7153  |    4191  |    3135  |   10318  |  
 RT> 28800 |   10980  |    7737  |    4571  |    3414  |   10443  |  
 RT> 31200*|   10994  |    8414  |    4964  |    3700  |   10654  |  
 RT> 33600*|   10954  |    8904  |    5279  |    3983  |   10701  | 
 RT> --------------------------------------------------------------- 
 RT> Modem Setup: Courier 7/5/95 firmware, AT&F1 init
 RT>  Transmitting System: DSZ.EXE version 6/7/95, on a 386DX-33. 
 RT> Receiving System: Procomm Plus (DOS) version 2.01, on a 486SX-25. 
 RT> Transfer Protocol: Ymodem-G
All are based on a DTE of 115,200bps.
Regards....
Craig
aka: cford@ix.netcom.com
--- timEd/2 1.10+
---------------
* Origin: Dayze of Futures Past * V.Everything * 713-458-0237 * (1:106/2001)

SOURCE: echomail via exec-pc

Email questions or comments to sysop@ipingthereforeiam.com
All parts of this website painstakingly hand-crafted in the U.S.A.!
IPTIA BBS/MUD/Terminal/Game Server List, © 2025 IPTIA Consulting™.