Download the latest software for EchoUAT Echo software version: 3.26 3.26 Released 3/13/2018 When echoUAT configuration is set by GRT EFIS use EFIS baro output even when control source is transponder monitor. 3.23 Released 1/19/2018 Invalid or undetected baro now displays as "--" instead of "0" in echo mobile application 3.22 Released 1/1/2018 Corrects incorrect [...]