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FrSky Transmitter/Receiver Upgrade Adapter (FUL-1)

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This is the FrSky receiver upgrade adaptor (FUL-1) that allows you to upgrade the firmware of your FrSky telemetry DFT/DJT/DHT V1 transmitter modules and your D8R V1 receiver. After this upgrade, you will have the following additional features:

  • Four different tones corresponding to four alarm sources
  • An improvement to the smoothness of servos when working with D8R
  • Two PPM modes: HS (9ms) if using high speed digital servos and FS (18ms) if using analogue servos

Please note that in telemetry (two-way) mode, both the module and the receiver need to be upgraded to V2 simultaneously; V1 and V2 are not compatible. This adaptor may also be used as a level converter for modified 9X radio installs with the FrSky system. This adapter is NOT needed to update the firmware on the D8R-II or the D8RII-Plus