According to AeroElectric Connection p 13-11, transponder ground plane of 5 1/2 inch diameter is sufficient. Thickness should be sufficient to support the antenna and cable attached to BNC.
Gary Soli Deo Gloria -----Original Message----- From: KRnet [mailto:krnet-bounces at list.krnet.org] On Behalf Of Mike Stirewalt via KRnet Sent: Wednesday, May 13, 2015 12:45 PM To: krnet at list.krnet.org Cc: laser147 at juno.com Subject: KR> Xpdr antenna > "Does somebody know what are the dimensions And thickness of that round alluminium plate? This should be easy to make it your self." Yep. Very easy. I cut out the bottom of an aluminum pie plate. It's worked well. Be sure and keep the antenna clean. Mounted below it picks up exhaust debris. It's surprising how a light coating of exhaust stuff will cause mode c problems - to the extent that some people will think their transponder is failing. Mike KSEE ____________________________________________________________ Forget the iPhone 6 1 little-known Apple supplier holds wealth-changing growth potential. http://thirdpartyoffers.juno.com/TGL3141/55538dcd5584dcc16f6st02vuc _______________________________________________ Search the KRnet Archives at http://tugantek.com/archmailv2-kr/search. To UNsubscribe from KRnet, send a message to KRnet-leave at list.krnet.org please see other KRnet info at http://www.krnet.org/info.html see http://list.krnet.org/mailman/listinfo/krnet_list.krnet.org to change options
