Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!ames!pasteur!ucbvax!lynx.northeastern.EDU!tmetro From: tmetro@lynx.northeastern.EDU Newsgroups: comp.sys.apple Subject: Modems Message-ID: Date: 29 May 88 01:21:55 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 36 Jim Block (jib@husc6.harvard.edu) writes: > I would suggest waiting for the Applied Engineering Datalink 2400. > Features (from AE data sheet): > [...] > Adaptive equalization and descrambling {???} Adaptive equalization means that the microcontroler in the modem monitors the line condition and adjusts the analog filters for best performance. Scrambling/descrambling is a method of randomizing the modem data. It uses a formula like: X= 1 + X^-14 + X^-17. This is supposed to distribute the data over the entire bandwidth (as many 1's as 0's) which is needed for proper operation of the adaptive equalization. > List price $239 That does sound a bit high for a non-error checking (MNP) modem. The T.H.E. Super Modem 2400 (external) from PC Network is selling for about $150 now. Its a well built (uses a full size metal case like the Hayes) modem with all the typical features including some unusual features like synchronous communication in addition to the standard asynchronous format. > Also includes AE's DataTerm and Online 64 software I heard that this was a repackaged version of TIC. Personally, I like external modems. That way you can unplug the modem and use it on another machine (if you upgrade, etc.) You also get status lights and a monitor speaker. ___________ / Tom Metro \_____________________________________________________________ | _ _ | | INET: tmetro@pro-angmar.uucp --/\/\_| |_| '- DigiTell, Inc. | | ARPA: crash!pnet01!pro-angmar!tmetro@nosc.mil Newton, MA | | UUCP: [ihnp4 sdcsvax nosc]!crash!pnet01!pro%angmar!tmetro | |_Alternate:_tmetro@lynx.northeastern.edu__________________________________|