Mode S transponder display to ATC?

On 2008-09-08, paul kgyy wrote:
On Sep 8, 12:19*pm, Peter wrote:
Does the GTX330 also *receive* the 1090ES data? I believe so. I do
have the installation manual, though not to hand.
I think as things currently stand you have to purchase Garmin's GDL90
to receive.

A Google turns up a PowerPoint from Garmin that the GTX330ES will be
available in the fourth quarter this year, and will talk to the GNS430W/530W
and GNS480 for 1090ES data. It doesn't say if it'll do ADS-B In from 1090ES,
but since it already does mode S uplink (for TIS, at least, in the US), I
would expect that it does. The existing GTX330 fleet, according to that
presentation, will be upgradeable to the ES version for $1200. I couldn't
tell if the GNS430W would also need an upgrade.
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