---------------------------------------------------------- Avionics-List Digest Archive --- Total Messages Posted Wed 03/10/10: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 10:44 AM - Re: In line filter (John DeCuir) ________________________________ Message 1 _____________________________________ Time: 10:44:07 AM PST US From: John DeCuir Subject: Avionics-List: Re: In line filter I had problems like yours, and I tried notch filters in the comm ant lead to no avail. I replaced comm and GPS coax with RG400 and eliminated the problem. John DeCuir RV4 > > Time: 07:05:22 AM PST US > From: Dave Lammers > Subject: Avionics-List: In line filter > > > Hi, does anyone on the list know where to purchase an in-line (BNC/BNC) > low-pass filter to pass 243 mhz, and reject the GPS carrier of 1.5 Ghz > and above? > It turns out that my comm radio causes the ring diodes in the output of > my ELT to resonate and retransmit at frequencies that saturate and shut > down the GPS reciever front end. > I don't want to move antennas (already 4 feet apart) and think that a > simple low pass filter in the ELT antenna line will do. I can easily > make one but would rather just purchase one already packaged. > Thanks > Dave Lammers > > ------------------------------------------------------------------------------------- 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.