---------------------------------------------------------- Avionics-List Digest Archive --- Total Messages Posted Mon 09/14/09: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:24 AM - Re: Radio Noise (jetboy) 2. 03:57 AM - Re: Need KT-70 pinout and instruction manual. (n4291p) 3. 04:16 AM - Re: Re: Radio Noise (Larry Florman) 4. 10:15 AM - Re: Re: Radio Noise (Doug McNutt) ________________________________ Message 1 _____________________________________ Time: 12:24:56 AM PST US Subject: Avionics-List: Re: Radio Noise From: "jetboy" Have you fitted the large (approx. 25,000 uF) capacitor to the regulator DC output? This is covered in some of the Rotax info and installation manuals for some of the homebuilt market radios. best to use a 105 degree C rated capacitor and not in the cabin area. Ralph -------- Ralph - CH701 / 2200a Read this topic online here: http://forums.matronics.com/viewtopic.php?p=262894#262894 ________________________________ Message 2 _____________________________________ Time: 03:57:43 AM PST US Subject: Avionics-List: Re: Need KT-70 pinout and instruction manual. From: "n4291p" Hello Don, I to need a pin out and operating manual for the KT-70 mode S transponder and do you know how to program the aircraft 8 digit codes Thanks for your help. Jan Prikkel jr Read this topic online here: http://forums.matronics.com/viewtopic.php?p=262899#262899 ________________________________ Message 3 _____________________________________ Time: 04:16:30 AM PST US From: Larry Florman Subject: Re: Avionics-List: Re: Radio Noise Yes, There is a 22,000 installed. Sent from my iPhone On Sep 14, 2009, at 3:21 AM, "jetboy" wrote: Have you fitted the large (approx. 25,000 uF) capacitor to the regulator DC output? This is covered in some of the Rotax info and installation manuals for some of the homebuilt market radios. best to use a 105 degree C rated capacitor and not in the cabin area. Ralph -------- Ralph - CH701 / 2200a Read this topic online here: http://forums.matronics.com/viewtopic.php?p=262894#262894 ________________________________ Message 4 _____________________________________ Time: 10:15:19 AM PST US From: Doug McNutt Subject: Re: Avionics-List: Re: Radio Noise At 04:13 -0700 9/14/09, Larry Florman wrote: >Yes, There is a 22,000 installed. > >On Sep 14, 2009, at 3:21 AM, "jetboy" wrote: >Have you fitted the large (approx. 25,000 uF) capacitor to the regulator DC output? If the noise can be described as a whine you may have a bad diode in the alternator. I donno about the Rotax but perhaps it has diodes mounted externally? One test is to see if the pitch of the whine changes with engine speed. Another is an oscilloscope connected to the power bus. -- --> So are we going to celebrate the start of a new decade at the end of this year? Or do the tens start at in January 2011? <-- ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message avionics-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Avionics-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/avionics-list Browse Digests http://www.matronics.com/digest/avionics-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.