Re: [Repeater-Builder] Audio Reproduction

[scomind]

Hi Joe,   It was argued (by Bob @ S-Com) that "If you choose the FM, it must be accompanied by a preemphasis circuit that covers the entire voice audio spectrum" while you do not on a PM exciter. I will point to the list name and remind everyone that when using discriminator audio, you do NOT need a preemphasis circuit with an FM modulator. In fact, you CAN'T use one or you will get double-preemphasized audio.   Yes, of course, if the audio has already been preemphasized elsewhere else (in this case the user's transmitter), then you do not preemphasize it again at the FM exciter in the repeater.   The point was that everyone in the hobby transmits preemphasized voice audio just as if we all had PM transmitters. If you have an FM transmitter, then it must be made to transmit preemphasized audio somehow.   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.