I don’t think the rule intends that you must react to it, or re-send it! They may have taken it a bit too far ;-) -Tom
> On May 14, 2015, at 7:51 PM, Gregg Eshelman <g_ala...@yahoo.com> wrote: > > On 5/14/2015 6:53 AM, Tom Easterday wrote: > >> However, I did find the source of the main problem! It was indeed my >> keyboard. Not the USB wiring from keyboard to pc, but the keyboard ITSELF >> is very sensitive to the noise created by the VFD. If I move the keyboard >> to the very extreme end of it’s (rather long) usb cable the problem >> disappears completely. 6” closer to the cabinet and noise reappears. >> Apparently the noise is being interpreted as key presses by the keyboard >> circuitry. I replaced the new water resistant Logitech keyboard with a very >> old Apple keyboard I had lying around and no more random characters! I >> also had a second problem where the VFD would shut down somewhat randomly >> which I thought was related to this noise as well. That turned out to be an >> over current condition at very low rpm. Tweaking some settings fixed that. > > Good to know. Apparently Logitech takes the second part of 47 C.F.R. > 15.5 (b) literally. > > "... interference must be accepted that may be caused by the operation > of an authorized radio station, by another intentional or unintentional > radiator, by industrial, scientific and medical (ISM) equipment, or by > an incidental radiator." > > http://www.gpo.gov/fdsys/pkg/CFR-2014-title47-vol1/xml/CFR-2014-title47-vol1-sec15-5.xml > > Your VFD is the "incidental radiator". I'd be building a metal window > screen box around it. > > --- > This email has been checked for viruses by Avast antivirus software. > http://www.avast.com > > > ------------------------------------------------------------------------------ > One dashboard for servers and applications across Physical-Virtual-Cloud > Widest out-of-the-box monitoring support with 50+ applications > Performance metrics, stats and reports that give you Actionable Insights > Deep dive visibility with transaction tracing using APM Insight. > http://ad.doubleclick.net/ddm/clk/290420510;117567292;y > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ One dashboard for servers and applications across Physical-Virtual-Cloud Widest out-of-the-box monitoring support with 50+ applications Performance metrics, stats and reports that give you Actionable Insights Deep dive visibility with transaction tracing using APM Insight. http://ad.doubleclick.net/ddm/clk/290420510;117567292;y _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
