---------------------------------------------------------- Avionics-List Digest Archive --- Total Messages Posted Wed 12/10/08: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:24 PM - King KT76 tso transponder....ambient light sensor adjustment (skywagon) ________________________________ Message 1 _____________________________________ Time: 09:24:08 PM PST US Subject: Avionics-List: King KT76 tso transponder....ambient light sensor adjustment From: "skywagon" My KT76 transponder sits on the bottom of my radio stack. As such, in daylight flights, it's ambient cabin lighting sensor "senses" that it is operating in evening/low light conditions and dims down the transponder radar pulse return lamp such that it can barely be seen in daylight operation. The sensor is operational as reflecting bright light on it, the pulse flash lamp comes up in brilliance. I have not been able to find a schematic that shows this lamp control circuit. I am assuming that that the circuit contains a bias control pot. that when located can be tweaked to allow the pulse return lamp to blink at a higher intensity. Any help would be greatly appreciated..... Dave Read this topic online here: http://forums.matronics.com/viewtopic.php?p=218835#218835 ------------------------------------------------------------------------------------- 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.