Re: [Repeater-Builder] Occupied Bandwidth.

[scomind]

Hi Bob,   Fortunately, voice emission PSDs are spread fairly evenly across the entire 300 to 3000 Hz modulation band (thanks to pre-emphasis, otherwise the PSD would be sloped toward the low end, & yes we're talking FM not PM Bob don't go there!!)   How could I turn down such a nice invitation?  :-)   Communication is difficult without definitions. PSD is some sort of distortion measurement?   General comments: Carson's Rule holds true for all types of angle modulation, FM and PM included. And yes, the male voice peaks somewhere around 300-400 Hz, so preemphasis does spread the energy over a wdier spectrum. Beyond that, I'm not sure what "FM not PM" means.   Virgil and I have been trying for a long time to show that FM and PM aren't two entirely different modulation schemes; one is just the derivitive of the other. With that close of a relationship, it just seems counterproductive to keep talking about the two as if they were as distantly related as AM and FM.   73, Bob Yahoo! Groups Links To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/   To unsubscribe from this group, send an email to: [EMAIL PROTECTED]   Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.