On Mon, 8 Aug 2016 04:30:04 +0000, itl-emc user group <[email protected]> wrote:
> According to ANSI 63.4: 2014 Clause 4.7.3 "Standard gain horns need not be > periodically recalibrated, unless damage or deterioration is suspected or > known to have occurred. If a standard gain horn is not periodically > recalibrated, its critical dimensions (see IEEE Std 1309-2005) shall be > verified and documented on an annual basis." > Can anyone point me in the direction of the clause in IEEE Std 1309-2005 > which mentions critical dimensions? Figure B.6? In the Annex, formula to calculate horn gain from aperture dimensions and length from the aperture to the throat are also provided. Regards, Tom - ---------------------------------------------------------------- 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://www.ieee-pses.org/list.html (including how to unsubscribe) 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]>
