---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Thu 02/20/14: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:24 PM - noise problem on radio - seems to be correlated to Autopilot being ON and Engine RPM (Sacha) 2. 01:37 PM - Re: PCB Mfg board house - in UK or Europe? (Sacha) 3. 09:55 PM - Re: PCB Mfg board house - in UK or Europe? (Etienne Phillips) 4. 10:18 PM - Re: PCB Mfg board house - in UK or Europe? (Eric Page) ________________________________ Message 1 _____________________________________ Time: 01:24:59 PM PST US From: "Sacha" Subject: AeroElectric-List: noise problem on radio - seems to be correlated to Autopilot being ON and Engine RPM Hello listers, I have a noise problem on my GNS430 COM radio that's mounted on my Rotax 912 powered Kitfox. The plane only has about 30 hours on it since it was completely rebuilt. I had not noticed this noise problem initially, only during the last 10 hours or so. The noise is intermittent but seems to be strongly correlated to two things - when the Autopilot (Trio Avionics ProPilot) is switched on I get much more noise. This noise is present even when the engine is off. It's like the squelch breaking. For some reason I've noticed that it happens more when I move the stick back and forth... I have no idea why this may be. - engine RPM - when I increase the throttle the noise becomes more and seems to increase in pitch and intensity. I'm suspecting at least one faulty ground connection. It's possible that it could also be due to the fact that the magneto wires (well, I'm not sure they are real magnetos, the engine is a Rotax 912UL) are not shielded as I didn't know any better when I wired them the first time. (Most of the wires that come from the panel go through connectors; in this way, I can remove the panel from the aircraft by detaching three connectors and the wire harness to the Autopilot.). My question is: how do I go about isolating what the fault might be? I'm dreading having to take apart every single wire in the avionics interconnections. Sacha ________________________________ Message 2 _____________________________________ Time: 01:37:19 PM PST US From: "Sacha" Subject: RE: AeroElectric-List: PCB Mfg board house - in UK or Europe? > I agree with you re ExpressPCB, PCB123, and similar services [...] DipTrace [...] OSH Park Does anyone know of any online PCB manufacturer that delivers to the UK/Europe? ________________________________ Message 3 _____________________________________ Time: 09:55:08 PM PST US Subject: Re: AeroElectric-List: PCB Mfg board house - in UK or Europe? From: Etienne Phillips Yep... www.pcb-pool.com I've used the South African incantation a number of times with great success. On 20 February 2014 23:36, Sacha wrote: > > > I agree with you re ExpressPCB, PCB123, and similar services [...] > DipTrace [...] OSH Park > > Does anyone know of any online PCB manufacturer that delivers to the > UK/Europe? > > ________________________________ Message 4 _____________________________________ Time: 10:18:58 PM PST US Subject: Re: AeroElectric-List: PCB Mfg board house - in UK or Europe? From: Eric Page On 20 February 2014 23:36, Sacha wrote: > Does anyone know of any online PCB manufacturer that delivers to the UK/Eu rope? OSH Park ships international for free. See here: http://bit.ly/1cwmLTt Eric ------------------------------------------------------------------------------------- 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.