If you are a two place craft in the US, include the ELT in "bare minimum". The GPS that I have, uses a little receiver module that is also the antenna, and I have it placed on the back shelf. Many are placed on the windscreen shelf, so they are not an issue. I have a COM, which is mounted on top of the plane because I made my seats out of carbon fiber, which took away the option of mounting it behind the seat, which I did in my first KR. My ELT is mounted behind the seat, but that may not be the best place for it, hope I never find out. You can see it at:
http://krbuilder.org/Electrical/index.html PS: There is a search option on my site. I just remembered because I could not find my ELT installation, so had to search for it. The search menu pick is at the bottom of the dropdown menu on the home page. See N64KR at http://KRBuilder.org - Then click on the pics See you at the 2007 - KR Gathering There is a time for building and a time for FLYING and the time for Flying has begun. Daniel R. Heath - Lexington, SC -------Original Message------- The bare minimum is one antenna for the VHF radio. Then, depending on what you intend to do with your craft, you might want: radio-navigation: - GPS antenna - Transponder antenna - VOR antenna - ADF antenna emergency: - Emergency Locator Transmitter antenna.