Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!nowhere!caf From: caf@omen.COM (Chuck Forsberg WA7KGX) Newsgroups: comp.dcom.modems Subject: Re: Compucom 9600 baud modems Message-ID: <1991Jun12.021727.8149@omen.COM> Date: 12 Jun 91 02:17:27 GMT References: <133.284d5993@wanda.waiariki.ac.nz> <139@omen.UUCP> Organization: Omen Technology INC Lines: 31 In article cg108w3@icogsci1.ucsd.edu (Steve - Happy Hacker) writes: ---=}>> On 7 Jun 91 21:59:06 GMT, caf@omen.UUCP (Chuck Forsberg WA7KGX) said: - -CW> In article <133.284d5993@wanda.waiariki.ac.nz> hendricp@wanda.waiariki.ac.nz writes: -CW> -Turn off RELiable mode (error correction), and you should get much more. Users -CW> -on our Opus BBS quite regularly achieve 900-960 cps with ZModem (unless they -CW> -use an XT to download with :-) - -CW> If they're using a 16550A with ZCOMM or Professional-YAM, they -CW> should be able to get >2000 cps downloading to an XT. -CW> TeleGodzilla is a 4.77 MHz PC with hard disk, and it gets about -CW> 2500 cps downloading from Unix at 38k. - -CW> "Don't believe everything you read in PC Magazine" - -I'm curious to know what kind of files acheive this speed. It smells -like protocol compression to me.. :) I was responding to the question of downloading **with an XT**. These are not fast machines, and some comms programs make them a bit quadratic. The 2500cps results were obtained downloading from a Unix system at 38k (no modem). Some files are compressible enough to allow a V.32bis/V.42bis modem to hit 2500 cps throughput. How many you have ready to send somewhere interesting is another question. -- Chuck Forsberg WA7KGX ...!tektronix!reed!omen!caf Author of YMODEM, ZMODEM, Professional-YAM, ZCOMM, and DSZ Omen Technology Inc "The High Reliability Software" 17505-V NW Sauvie IS RD Portland OR 97231 503-621-3406