On Tuesday, May 1, 2018 at 4:11:24 PM UTC-4, wrote:
... what would be a panel-mounted sunlight-visible display ... for something like the Stratux?

http://www.craggyaero.com/air_traffic_display.htm is very highly regarded. It's not cheap.

Is there a way to interface a dual band ADS-B-in to an Oudie?