I dare say, if you lay your coax right on a florescent light you will have the same problems.
The two technologies handle interference in different ways. It may be that coax makes sense for that particular application. But, the whole industry moved away from coax for infrastructure for a whole raft of reasons, not the least is cost and ease of installation. And, we have seen network speeds jump from 10 base-t to 1000 base-t at very affordable costs. I'm looking forward to when fiber is as cheap as wire. That will be the day. ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Owen, Richard Sent: Monday, October 05, 2009 12:49 PM To: RBASE-L Mailing List Subject: [RBASE-L] - RE: Off topic Network Q Give me back my Coax Cable. That will be the next "greatest" invention for high speed networks. We are already using Coax for DS3 terminations from the DMARC to the Data Center. Richard Owen - Assistant Vice President Architect / Prof. Planner NJM Insurance Company 301 Sullivan Way West Trenton, NJ 08628 609-883-1300 ext. 7900 [email protected] ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Dennis McGrath Sent: Monday, October 05, 2009 12:29 PM To: RBASE-L Mailing List Subject: [RBASE-L] - RE: Off topic Network Q It is amazing how many places I found on the internet where people where saying the fluorescent light thing was a myth. If you run 50 stop signs at 40 mph without incident, it does not mean that you won't get a wreck on the next one. The only cabling that will not experience EMI (electromagnetic interference) is fiber optic, and that is because it is using light, not electricity. I'll bet if you shine a strong enough light on a fiber optic cable you will have problems too! Of course, that would probably melt everything in the vicinity! Dennis McGrath ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Dan Goldberg Sent: Monday, October 05, 2009 11:10 AM To: RBASE-L Mailing List Subject: [RBASE-L] - RE: Off topic Network Q Just to tell you a story that I experienced a few years back. I had two users in the same office running cat 5 at 100mb speed on identical machines. One user was complaining that his network performance was slow at times. I ran bandwidth tests on both machines. The good machine ran at constantly at 88 mb throughout put. The problem machine would vary from 18 mb to 85 mb though output. We traced the problem and found the wire that was ran over a florescent light in the bath room. The bathroom light was on a motion sensor. So every time someone went to the bathroom he would have bandwidth problems. Dan Goldberg ________________________________ From: [email protected] [mailto:[email protected]] On Behalf Of Bill Downall Sent: Monday, October 05, 2009 8:49 AM To: RBASE-L Mailing List Subject: [RBASE-L] - RE: Off topic Network Q Inversely, that explains a lot about my putting abilities. Four ft away is 4 times worse than 2 feet. Bill On Mon, Oct 5, 2009 at 11:44 AM, Dennis McGrath <[email protected]<mailto:[email protected]>> wrote: Exactly! Interference decreases exponentially with distance. 1 ft away is 4 times as goo as 6 inches. 2 ft away is 8 times better, etc. ========================================================= The information in this transmission is intended for official use only and may contain information from NJM Insurance Group that is privileged, confidential and exempt from disclosure under applicable law. It is intended for the exclusive use of the persons or entities to which it is addressed. If you are not an intended recipient or the employee or agent responsible for delivering this transmission to an intended recipient, be aware that any disclosure, dissemination, distribution or copying of this communication, or the use of its contents, is strictly prohibited. If you received this transmission in error, please notify the sender by return e-mail and delete the material from any computer. =========================================================
