Path: utzoo!utgpu!water!watmath!clyde!bellcore!rutgers!cmcl2!nrl-cmf!ames!pasteur!ucbvax!decwrl!sun!imagen!atari!portal!cup.portal.com!Michael_J_Ward From: Michael_J_Ward@cup.portal.com Newsgroups: comp.periphs Subject: Disk testing for phase margin etc. Message-ID: <8382@cup.portal.com> Date: 23 Aug 88 00:21:08 GMT References: <433@icus.UUCP> <704@hodge.UUCP> <698@viscous> Distribution: na Organization: The Portal System (TM) Lines: 5 XPortal-User-Id: 1.1001.4667 Is there anyone reading this conference who is familiar with testing hard disks and/or floppy disk drives using time-interval counters for phase margins, bit shift etc.? What is the preferred piece of test equipment--bit- error rate testers, etc? for general testing of such products? .