Quote Originally Posted by rvdave View Post
Ifd550 gps is working since changing to high speed but just noticed I am not getting ils to work. Identifier shows up in frequency window and Morse code is detected but I am getting no signal lock. My other remote nav source does work when selected to give me ils data. My gps/nav1 is sv-arinc 429, gps/nav2 is remote nav, gps/nav3 is remote gps. Is there a setting I missed when changing to arinc high speed to ifd550? I believe arinc in from efis remains low speed but will verify.
Is the ils working on the avidyne screen? Does it share a split antenna with the other nav radio? If working on the avidyne, I would look at the arinc speed setting for the vor/ils configuration. I’m not familiar with the avidyne configuration menus, but the gps and vor/ils on my GTN are two different menu trees.