---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Sun 04/06/14: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:05 AM - Magneto Noise (Jeff Luckey) 2. 12:14 PM - Re: Magneto Noise (Tim Andres) 3. 01:01 PM - Re: Magneto Noise (David Lloyd) ________________________________ Message 1 _____________________________________ Time: 10:05:46 AM PST US From: Jeff Luckey Subject: AeroElectric-List: Magneto Noise =0A=0AI flew w/ a friend recently and when trying to get awos for our desti nation airport (which is a pretty weak signal) it was almost impossible to hear due to magneto noise.- The radio is a Garmin 430W in a Cherokee and we were around 10 miles from the airport.- When we got within 3 or 4 mile s the signal was much clearer.- All other transmissions with ATC & towers were acceptable but I noticed at high volume I could clearly hear magneto noise in the background.=0A=0A=0AI'm wondering if that's just the way it is or if there is a problem with the magnetos or P lead wiring.=0A=0A=0AThere must be one of Bob's handy-dandy write-ups on this topic but a quick searc h of AeroElectric.com was in vain.=0A=0ACan someone point me in the right d irection?=0A=0ATIA,=0A=0A-Jeff=0A ________________________________ Message 2 _____________________________________ Time: 12:14:10 PM PST US From: Tim Andres Subject: Re: AeroElectric-List: Magneto Noise Not normal. Does it go away when you switch either mag off? YOu sure its a mag?=0ATim=0A=0A=0A=0A=0A________________________________=0A From: Jeff Luc key =0ATo: "aeroelectric-list@matronics.com" =0ASent: Sunday, April 6, 2014 10:04 AM=0ASubject: AeroElectric-List: Magneto Noise=0A =0A=0A=0A=0A=0AI flew w/ a friend rece ntly and when trying to get awos for our destination airport (which is a pr etty weak signal) it was almost impossible to hear due to magneto noise.- The radio is a Garmin 430W in a Cherokee and we were around 10 miles from the airport.- When we got within 3 or 4 miles the signal was much clearer .- All other transmissions with ATC & towers were acceptable but I notice d at high volume I could clearly hear magneto noise in the background.=0A =0A=0AI'm wondering if that's just the way it is or if there is a problem w ith the magnetos or P lead wiring.=0A=0A=0AThere must be one of Bob's handy -dandy write-ups on this topic but a quick search of AeroElectric.com was i n vain.=0A=0ACan someone point me in the right direction?=0A=0ATIA,=0A=0A-J ==================== ________________________________ Message 3 _____________________________________ Time: 01:01:46 PM PST US From: "David Lloyd" Subject: Re: AeroElectric-List: Magneto Noise I would suspect the "shield" part of the P-lead cable has broken and is no longer grounded at the mag. housing. 2nd, a small chance that the heavy grounding cable from the engine to aircraft frame is missing or not making a full connection due to corrosion or other flaw. Dave ------------------------------------------------------------------------- ------- ----- Original Message ----- From: Tim Andres To: aeroelectric-list@matronics.com Sent: Sunday, April 06, 2014 12:13 PM Subject: Re: AeroElectric-List: Magneto Noise Not normal. Does it go away when you switch either mag off? YOu sure its a mag? Tim ------------------------------------------------------------------------- ----- From: Jeff Luckey To: "aeroelectric-list@matronics.com" Sent: Sunday, April 6, 2014 10:04 AM Subject: AeroElectric-List: Magneto Noise I flew w/ a friend recently and when trying to get awos for our destination airport (which is a pretty weak signal) it was almost impossible to hear due to magneto noise. The radio is a Garmin 430W in a Cherokee and we were around 10 miles from the airport. When we got within 3 or 4 miles the signal was much clearer. All other transmissions with ATC & towers were acceptable but I noticed at high volume I could clearly hear magneto noise in the background. I'm wondering if that's just the way it is or if there is a problem with the magnetos or P lead wiring. There must be one of Bob's handy-dandy write-ups on this topic but a quick search of AeroElectric.com was in vain. Can someone point me in the right direction? TIA, -Jeff http://www.matronics.com/Navigator?AeroElectri" href="http://forums.matronics.com/">http://forums.matronics.com _="nofollow" target="_blank" href="http://www.matronics.com/contributi= ------------------------------------------------------------------------------------- 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.