chan@chansw.UUCP (Jerry H. Chan) (02/04/91)
[I changed the subject line to reflect the new topic] In article <327@stiatl.UUCP>, tok@stiatl.UUCP (Terry Kane) writes: > jwbirdsa@amc-gw.amc.com (James Birdsall) writes: > ... > >One other note: the Seiko CM1430 radiates magnetic fields all over the > >place, causing monitors near it to jitter. Do newer models still have this > >problem? > > Well, I have an old Sanyo monochrome monitor in use next to my Seiko CM1450, > and have no jitter problem. I separate the screens by at least six inches, > to avoid the predictable problem of distortion caused by magnetic interference I my experience, the "jitter" problem may *not* due to radiated RF emissions, but due to CONDUCTED RF via the AC cables. Ever wonder what that block on one end of the power cord (resembles a dice swallowed by a skinny snake) is for? It's a ferrite (iron) bead designed to reduce CONDUCTED RF noise. If you experience the screen jitters, I'd suggest this experiment -- separate plug in both monitors into the same outlet and separate the monitors as much as possible (i.e., several yards); if the jitters continue, then the problem is likely CONDUCTED RF. The fix: (1) RF power filter, (2) put monitors on separate circuits (if you have that luxury), or (3) turn off the monitor not in use. -- Jerry Chan 508-853-0747, Fax 508-853-2262 |"My views necessarily reflect the Chan Smart!Ware Computer Services & Prods | views of the Company because Worcester, MA 01606 | I *am* the Company." :-) {bu.edu,husc6}!m2c!chansw!chan \---------------------------------