---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sun 10/17/21: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:48 AM - Audio panel move (RV7ASask) 2. 08:13 AM - Re: Audio panel move (Charlie England) 3. 01:41 PM - Re: Audio panel move (Robert L. Nuckolls, III) 4. 04:56 PM - Z 16 Charging question (William Daniell) 5. 05:32 PM - Re: Audio panel move (RV7ASask) ________________________________ Message 1 _____________________________________ Time: 07:48:08 AM PST US Subject: AeroElectric-List: Audio panel move From: "RV7ASask" I am in the process of upgrading my panel and would like to move the Garmin GMA 240 audio panel across the instrument panel. It would be a move of about two feet. Can I make two extension wire harnesses and just connect across? I would use shielded wires where they are already in use but I am concerned about the integrity of the extensions? Is there a feedback/noise potential doing this? Is there a better way? Thanks David Read this topic online here: http://forums.matronics.com/viewtopic.php?p=503547#503547 ________________________________ Message 2 _____________________________________ Time: 08:13:02 AM PST US Subject: Re: AeroElectric-List: Audio panel move From: Charlie England On 10/17/2021 9:47 AM, RV7ASask wrote: > > I am in the process of upgrading my panel and would like to move the Garmin GMA 240 audio panel across the instrument panel. It would be a move of about two feet. Can I make two extension wire harnesses and just connect across? I would use shielded wires where they are already in use but I am concerned about the integrity of the extensions? Is there a feedback/noise potential doing this? Is there a better way? > Thanks > David SubD connectors? If it were me, I'd certainly make up a male-female extension. All the impedances in an audio panel are quite low, minimizing noise pickup risk. I'd consider the biggest risk the fabricator him/her-self. If using the quality gold plated machined pins, I wouldn't think twice about making up extensions. Charlie -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ________________________________ Message 3 _____________________________________ Time: 01:41:43 PM PST US From: "Robert L. Nuckolls, III" Subject: Re: AeroElectric-List: Audio panel move >SubD connectors? If it were me, I'd certainly make up a male-female >extension. All the impedances in an audio panel are quite low, >minimizing noise pickup risk. I'd consider the biggest risk the >fabricator him/her-self. If using the quality gold plated machined >pins, I wouldn't think twice about making up extensions. > >Charlie Agreed! What connectors are you needing Dave? I may have some in the project residuals. Bob . . . Un impeachable logic: George Carlin asked, "If black boxes survive crashes, why don't they make the whole airplane out of that stuff?" ________________________________ Message 4 _____________________________________ Time: 04:56:23 PM PST US From: William Daniell Subject: AeroElectric-List: Z 16 Charging question I have a Rotax 912 with a Z16 and Dynon Skyview The ammeter sometimes ( defined as once every 25 flights) goes off the chart to 60a. I get the red X over the instrument. Then it comes back and goes down to normal and sits there at whatever loads I have on the system. I have always assumed that this was a Dynon bug. My Dynon has a shunt installed between the generator and the bus which measures the entire load normally rock steady at 7A or 8A when using the autopilot. I also have an independant hall effect sensor measuring amps on the fat wire to the battery. Today I noticed on climb out that the hall effect sensor was showing battery charge oscillating from +1.7A to +2.5A - normally it is steady. I switched off the alternator and the hall effect sensor showed steady -7A in agreement with the load shown on my dynon (7A). (I turned around and landed immediately.) Voltage is steady. I checked the alternator as per https://pointsforpilots.blogspot.com/2012/12/testing-rotax-912914-generator-and.html. All within limits. So my next steps are to change the regulator, which involves taking out the crowbar because the BandC had one internally, (I had already bought a BandC voltage regulator some time ago) and the battery which is pretty much due for a change. Any other thoughts? Thanks William Daniell LONGPORT +1 786 878 0246 ________________________________ Message 5 _____________________________________ Time: 05:32:47 PM PST US Subject: AeroElectric-List: Re: Audio panel move From: "RV7ASask" Thanks gentlemen. The GMA 240 has two 44-pin connectors so, I presume, I would require four connectors, two male and two female to make extension harnesses. Bob, if you have these connectors in your stores, I would certainly be interested in purchasing them and paying postage to Canada. Thanks again. David Read this topic online here: http://forums.matronics.com/viewtopic.php?p=503552#503552 ------------------------------------------------------------------------------------- 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.