Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!snorkelwacker.mit.edu!bloom-picayune.mit.edu!athena.mit.edu!spworley From: spworley@athena.mit.edu (Spaceman Spiff) Newsgroups: comp.sys.amiga.datacomm Subject: Re: Downloading problems !!! Help !!! Keywords: Help Message-ID: <1991Mar19.003009.27380@athena.mit.edu> Date: 19 Mar 91 00:30:09 GMT References: Sender: spworley@athena.mit.edu Organization: Massachusetts Institute of Technology Lines: 25 You DO seem to have problems. XModem is pretty efficient, and for a 400K file, it should take less than an hour to download (400K *1024 bytes/K * 8 bits/byte * 1 second/1200 bits * 1 hour/3600 secs = .75 hours + a little extra for overhead. Terminal programs shouldn't make a speed difference, though protocols (X Y Z modem, for example) do. Perhaps your phone lines are SO noisy there are a LOT of errors and retransmissions. If you use JRComm or NCOMM (my favorate) you get a display of the number of errors per file, and a characters per second display. My 2400 baud modem (with Zmodem protocol) usually goes at about 230 chars/second. You should be getting at least 100. I'm hoping you know about file compression. Compressing with LHARC or ZOO will reduce file size (and transfer time) by a third or more. I hope your new modem solves your problem. -Steve ------------------------------------------------------------------------------ Steve Worley spworley@athena.mit.edu ------------------------------------------------------------------------------