Hi all:

I have a 4500 installed in my RV-7 connected to a 430W via the ARINC module. I have about 125 hours on this installation and everything works great using GPS for normal navigation.

I have a Archer VOR antenna installed in the wing tip and I seem to have good reception of VORs (about a 50 mile range). A high quality signal splitter is installed supposedly dividing the VOR signal to the VOR and GS inputs on the 430W. The other day I decided to try an ILS approach (I really can't remember testing a full ILS approach). The LOC displayed and tracked fine with a good LOC audio signal but the GS portion was flagged red and inop. I tried this at several airports and no GS was ever displayed. Is there any setup and/or configuration settings on either the 4500 or the 430W I can check?

Doug Weiler