---------------------------------------------------------- Avionics-List Digest Archive --- Total Messages Posted Tue 02/02/10: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:23 AM - Re: radio transmission problems (Noel Loveys) ________________________________ Message 1 _____________________________________ Time: 09:23:36 AM PST US From: "Noel Loveys" Subject: RE: Avionics-List: radio transmission problems My best guess is you have a ground problem somewhere. Look for a loose ground wire. If you find one make sure to remove it, clean both ends and the area it connects to and then reinstall. Check your plugs... If they are resistor plugs they should have about 5K Ohm resistance in the centre conductor. I had one occurrence where a cracked seal caused coolant to short out the resistors in my plugs. On receive the radio was crystal clear but even a close line of sight I was nothing but hash. Noel -----Original Message----- From: owner-avionics-list-server@matronics.com [mailto:owner-avionics-list-server@matronics.com] On Behalf Of ejessee Sent: February 1, 2010 10:22 PM Subject: Avionics-List: radio transmission problems Hello all, I have a VAL COM 760 radio in my Zenith 701 with 912 UL engine. Since I have owned the plane, I have had intermittent radio transmission problems. Some days, people I am communicating with indicate that the radio is clear. Other days, they cannot even understand what I am saying. I have been described as "garbled", "scratchy", "much background noise", and "completely unintelligible". The radio receives perfectly. Considering that this is an intermittent problem does anyone have an idea as to what might be my problem? Thanks in advance for your help. -------- Ernest Jessee N4931M Read this topic online here: http://forums.matronics.com/viewtopic.php?p=284514#284514 ------------------------------------------------------------------------------------- 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.