R4 RES receiver has a special type of firmware designed for the competition category of electrically powered gliders (ERES). Measurements and height calculations are the same as the specifications of F5J category. Settings and telemetry are strictly limited according to the needs of the ERES competition.
To display the R4 RES receiver in "device explorer", it is necessary to have the configuration file R4RES.bin in the Devices folder in the transmitter.
DUPLEX System EX is fully compatible with the previous version of the DUPLEX.
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