We are the manufacturers of the Hardware for the Wren ECU (blue or green casing).
Gaspar Espiell does the programming.
it seems where ever there are problems they seem only to occur in australia strangly enough.
i use our ecu with JR , Futaba ,(all on 35mhz) and very recent 2,4 Ghz and never had or have a issue.
there are hundreds of these ecu,s out there and only a very few had a problem.(most are user errors)
i also flew/fly Turboprops , 44,s supersports .
are you guys using by any chance futaba G3 receivers?
we need to start comparing on transmittors and receivers used.
i also got a ECU back that as soon you would connect it to a futaba receiver it would shorten the range.
we replaced the ecu to that customers and all was fine.
i tested this ecu on my own jet and i also had NO problems , so this is a weird fenomenon.
it seems to be only happening on futaba these days , in Germany there is a huge problem of receiver issues on the G3 combined with turbines.
Futaba urges everyone to use filters to clean the signal from the ECU...(this was recomended to ALL ecu,s not only the Wren ecu)

go figure..


Sandor