In message <7b3d1875a9a53142ab5d421ee97d0e60027ba...@ccsexchange.ccsdomain.ccsemc.co m>, dated Thu, 27 Aug 2009, Michael Heckrotte <[email protected]> writes:
>I got an off-line question about why the video bandwidth is based on RF >bandwidth instead of something lower like the demodulated signal or the >symbol rate. Isn't it fairly straightforward? The object is to measure the **RF power**, and if the measurement is made with a bandwidth lower than that of the signal, the power indicated must be lower than it really is - some power didn't get through the bandwidth-defining filter. For DSB AM, the RF bandwidth is *twice* the modulation bandwidth. -- OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk Things can always get better. But that's not the only option. John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - 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.ieeecommunities.org/emc-pstc Graphics (in well-used formats), large files, etc. can be posted to that URL. 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]>
