Perhaps. To help isolation It has several sections. Only the output end has lower power parts....
Derek Sent from my iPhone On Sep 27, 2012, at 6:12 PM, don_borow...@selinc.com wrote: > While the schematic may be a pi or T network, internally it may be a > series of pi or T networks, each section of which dissipates a given > amount of wattage. This means the input pi/T might attenuate say only a > few tenths of a dB, while the last pi/T also dissipates about the same > amount of power, but does so by having a much larger attenuation. Turn > things around, and this power distribution plan is totally shot. > > Alternatively, it is a single pi or T network, with a high power resistor > on the input side, and a lower power resistor on the output side. > > Cheers, > > Donald Borowski > EMC Compliance Engineer > Schweitzer Engineering Labs > Pullman, WA, USA > > > > From: Ken Javor <ken.ja...@emccompliance.com> > To: "EMC-PSTC@LISTSERV.IEEE.ORG" <EMC-PSTC@LISTSERV.IEEE.ORG> > Date: 09/27/2012 03:25 PM > Subject: Calling all old-timers > Sent by: emc-p...@ieee.org > > > > Make that "older-timers." > > Just purchased an Empire Devices AT-58 6 dB attenuator. It's big - looks > like it ought to handle 100 Watts, but there is no indication of the power > handling capability. > > Input and output are marked, and only the input side is supposed to face > the > high power source, so the rating of internal resistors is based on > individual power dissipation - schematically these things are symmetrical > so > the power rating is the only reason for marking input and output. > > Any leads on this? > > Ken Javor > Phone: (256) 650-5261 > > - > ---------------------------------------------------------------- > This message is from the IEEE Product Safety Engineering Society emc-pstc > discussion list. To post a message to the list, send your e-mail to > <emc-p...@ieee.org> > > All emc-pstc postings are archived and searchable on the web at: > http://www.ieee-pses.org/emc-pstc.html > > Attachments are not permitted but the IEEE PSES Online Communities site at > http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used > formats), large files, etc. > > Website: http://www.ieee-pses.org/ > Instructions: http://listserv.ieee.org/request/user-guide.html > List rules: http://www.ieee-pses.org/listrules.html > > For help, send mail to the list administrators: > Scott Douglas <emcp...@radiusnorth.net> > Mike Cantwell <mcantw...@ieee.org> > > For policy questions, send mail to: > Jim Bacher: <j.bac...@ieee.org> > David Heald: <dhe...@gmail.com> - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <emcp...@radiusnorth.net> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
