So much for beautiful install of Kuntzleman dual strobe power supply and harness opposite 406MHz ELT. During radio/antenna placement testing we discovered RFI was getting into radio from strobe power supply no matter what we tried. Moving antenna at least 8 feet away from power supply was only thing that helped. Here's a link to another homebuilder that pretty much had same experience with noise:
http://home.hiwaay.net/~langford/antennas.html
Y9-02-17