If it had of been DMR APRS you would have known EXACTLY what it was B-] KP4DJT
On Thu, Mar 26, 2020 at 11:29 PM Denis Heidtmann <denis.heidtm...@gmail.com> wrote: > A cold solder joint can rectify. > > On Thu, Mar 26, 2020 at 8:30 PM Michael Barnes <barnmich...@gmail.com> > wrote: > > > On Thu, Mar 26, 2020 at 7:41 PM David <dafr+p...@dafr.us> wrote: > > > > > On 3/25/20 8:43 PM, Michael Barnes wrote: > > > -- clip -- > > > > > > > > > > > > Source of problem discovered. Still working on why. My APRS base > > station > > > > beacons every 30 minutes. For some reason, I recently started getting > > > some > > > > RFI into things, this speaker being one of them. Just happened to be > > > > looking at the APRS screen when it transmitted and heard the buzz at > > the > > > > same time. Now to figure out and solve why the RFI is only recently > > > > getting into things. > > > > > > > > > I have limited little knowledge about APRS and my HT is analog so, > along > > > with being green, I don't have much to offer here. > > > > > > The questions that spring to mind are: > > > > > > * has an antenna been added, removed, or relocated recently? > > > * has the power source for the speaker or base station changed? > > > * proper grounding on the base station? > > > * what happens if you hit TX on your base station for voice? > > > > > > A ferrite choke may be all that is needed, but I'm not sure where it > > > would need to be positioned. > > > > > > dafr > > > _________ > > > > > > > It seems the problem is pretty much limited to that particular set of > > speakers. I moved them around to other applications with similar > results. > > Had the problem existed when I was on another radio, I would have > > immediately correlated it to RFI. Since it was picking up the APRS radio, > > which just sits there doing its thing pretty much unnoticed, it never > > crossed my mind. Changed speakers, problem gone. I'll have to dig into > > these and try to find why they have such a problem and nothing else does. > > Thanks for everyone's comments. > > > > Michael WA7SKG > > _______________________________________________ > > PLUG mailing list > > PLUG@pdxlinux.org > > http://lists.pdxlinux.org/mailman/listinfo/plug > > > _______________________________________________ > PLUG mailing list > PLUG@pdxlinux.org > http://lists.pdxlinux.org/mailman/listinfo/plug > -- Chuck Hast -- KP4DJT -- I can do all things through Christ which strengtheneth me. Ph 4:13 KJV Todo lo puedo en Cristo que me fortalece. Fil 4:13 RVR1960 _______________________________________________ PLUG mailing list PLUG@pdxlinux.org http://lists.pdxlinux.org/mailman/listinfo/plug
