---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sun 03/03/24: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:15 AM - Re: Radio Interference (Bob Verwey) ________________________________ Message 1 _____________________________________ Time: 01:15:58 AM PST US From: Bob Verwey Subject: Re: AeroElectric-List: Radio Interference Thanks Charlie this is bankable info On Sat, 02 Mar 2024, 23:59 Charlie England, wrote: > Not knowing that particular engine's characteristics makes it even more > difficult to remotely troubleshoot. But here are some generic things to > think about. > One thought (but not easiest to check) would be the condenser in the mag. > (If it *is* the condenser, you'll be putting points in the mag soon. ;-) ) > If the mags are the same or similar to each other, you might be able to > swap the condensers between the mags to see if the noise moves to the oth er > mag. > Depending on the plug wire and plug specs, you could have damaged > shielding on a plug wire, and/or if the engine uses resistor plugs like a > Lyc, you might have a plug going bad. > Then there's the possibility of grounding issues with that mag. Have you > done a recent mag check before shutting down to be sure that killing both > mags actually kills the engine? Depending on how the plane is wired, eve n > that might not tell you if a P-lead shield is ungrounded. > Has anything else changed in the wiring of the plane in general? If so, > the work could have either removed a needed ground path or added one that > wasn't there before, resulting in a 'ground loop' that is affecting the > comm. > > Just shots in the dark; about the best that can happen 'long distance'. > > > > Virus-free.www.avast.com > > <#m_-8209997907517583625_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > > On Fri, Mar 1, 2024 at 6:39=AFPM wrote: > >> I have a LOM M332 aircraft engine with 2 factory magnetos and an MGL V16 >> radio. >> >> Antenna is copper foil with balun epoxied into the VS >> >> There are no filters installed. >> >> While listening to ATIS (118.1) there is a ticking sound that is linked >> to the right magneto, it goes away when right mag is switched off. >> >> No noise when running only on left mag >> >> While listening to ATIS I can also hear static that is not there on the >> other frequencies >> >> I cannot be 100% certain but I think the noise is new. >> >> This noise is not present when listening to Tower (121.9) >> >> Any ideas on what could cause this >> >> >> >> Thanks >> >> >> >> Mike >> > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message aeroelectric-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/AeroElectric-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/aeroelectric-list Browse Digests http://www.matronics.com/digest/aeroelectric-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.