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IFD540/440 Touch Screen GPS/NAV/COM : KSN770 IFD540 comparison?

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Author: compasst
Subject: KSN770 IFD540 comparison?
Posted: 31 Oct 2015 at 8:47am

Does anyone know of a comparison of the KSN770 with the IFD540? One of my IFR students is really impressed with my IFD540. His Turbo C182T came with full King avionics including a passive 5" display. He's considering upgrading to the KSN770 and giving up his pre-release IFD540 slot due to, in part, perceived financial savings. I'm wondering if the KSN770 approaches the IFD540 in features, functions, and usability. It's entry-level price is attractive, but I think the overall cost of installation, features, options, data subscriptions, and the like still favor the IFD540. 

Any thoughts or articles or comparison charts available?

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