You are telling me what I suspected - that it's the design, not a component going bad or failed.
Chuck WB2EDV ----- Original Message ----- From: <n...@no6b.com> To: <Repeater-Builder@yahoogroups.com> Sent: Thursday, November 26, 2009 12:38 PM Subject: Re: [Repeater-Builder] MVP Audio Popping > At 11/26/2009 07:14, you wrote: > > >>The recent discussion on Spectra audio popping prompts this post. >> >>Has anyone cured the audio popping on a GE Custom MVP. The speaker pops >>every time that the squelch opens. I have several radios that this happens >>on, some worse than others. > > The speaker audio comes from pin 12 of AR901 on the SAS board. The > schematic calls out 6.6 V unsquelched & 0.1 V squelched. C921, a 220 uF > coupling cap couples the audio to the speaker. > > Off hand I don't see any way to get rid of the DC step short of > replacing/redesigning the audio amp. You could try replacing C921 with a > smaller value cap to reduce the low frequency content of the step. > > Bob NO6B > > > > ------------------------------------ > > > > Yahoo! Groups Links > > > -------------------------------------------------------------------------------- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.709 / Virus Database: 270.14.83/2528 - Release Date: 11/26/09 04:10:00
