Self install and the GA56 Antenna

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   I noticed that in both the self install documentation and the IFD installation manual, the GA56 non-WAAS antenna is specifically not permitted. That's the standard antenna that comes with the 430 navigator.
If I wanted to try replacing a standard 430 with an IFD 440, presumably I would want to just plug in the IFD to the existing antenna, understanding of course that it would not be able to do WAAS. This prohibition though suggests that it won't work at all, which would mean changing the antenna, which in turn requires an avionics installer, something that defeats the idea of Self Install.

Can you clarify if the GA56 antenna doesn't work at all with an IFD, or if it just works without benefit of WAAS reception?

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Melohn Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 11 Dec 2013 Location: PHNL Status: Offline Points: 124	Post Options Post Reply Quote Melohn Report Post Thanks(0) Quote Reply Topic: Self install and the GA56 Antenna Posted: 29 Jan 2017 at 2:23am
	I noticed that in both the self install documentation and the IFD installation manual, the GA56 non-WAAS antenna is specifically not permitted. That's the standard antenna that comes with the 430 navigator. If I wanted to try replacing a standard 430 with an IFD 440, presumably I would want to just plug in the IFD to the existing antenna, understanding of course that it would not be able to do WAAS. This prohibition though suggests that it won't work at all, which would mean changing the antenna, which in turn requires an avionics installer, something that defeats the idea of Self Install. Can you clarify if the GA56 antenna doesn't work at all with an IFD, or if it just works without benefit of WAAS reception?

AviSimpson Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 31 Mar 2015 Location: Lincoln, MA Status: Offline Points: 765	Post Options Post Reply Quote AviSimpson Report Post Thanks(0) Quote Reply Posted: 30 Jan 2017 at 9:44am
	It does not work. I has to do with the gain structure of the antenna.
	Simpson Bennett Avidyne Corporation Product Manager