Here is a specification sheet for the Empire Devices AT-60. I can't state whether it would have similar ratings to the AT-58, but it may provide some guidance. http://www.aef.se/Mat-Testteknik/Typkatalog/M2433/M2433-103010.pdf
Ted Eckert Compliance Engineer Microsoft Corporation [email protected] The opinions expressed are my own and do not necessarily reflect those of my employer. -----Original Message----- From: Ken Javor [mailto:[email protected]] Sent: Thursday, September 27, 2012 5:38 PM To: [email protected] Subject: Re: Calling all old-timers I may have posed my question unclearly. What is the power handling capability of an Empire Devices AT-58 6 dB attenuator, properly inserted in a circuit? The balance of the discussion was just there to pique any old memories. Ken Javor Phone: (256) 650-5261 > From: Derek Walton <[email protected]> > Date: Thu, 27 Sep 2012 18:23:26 -0500 > To: "[email protected]" <[email protected]> > Cc: Ken Javor <[email protected]>, "[email protected]" > <[email protected]> > Subject: Re: Calling all old-timers > > 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, [email protected] 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 <[email protected]> >> To: "[email protected]" <[email protected]> >> Date: 09/27/2012 03:25 PM >> Subject: Calling all old-timers >> Sent by: [email protected] >> >> >> >> 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 <[email protected]> >> >> 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 <[email protected]> Mike Cantwell >> <[email protected]> >> >> For policy questions, send mail to: >> Jim Bacher: <[email protected]> >> David Heald: <[email protected]> - ---------------------------------------------------------------- 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 <[email protected]> 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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]> - ---------------------------------------------------------------- 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 <[email protected]> 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 <[email protected]> Mike Cantwell <[email protected]> For policy questions, send mail to: Jim Bacher: <[email protected]> David Heald: <[email protected]>
