We have released a new firmeware 1.6 for True-D 2.4GHz.
In this version, we have optimized the algorithms of switching antennas to achieve better efficiency. We also have new calibration RSSI feature. These are the steps to calibration RSSI.
Step 1: Go to Menu > Setting > Calibration
Step 2: Select channel on TrueD corresponding with VTX by UP/DOWN button.
Step 3: Plug VTX power and wait for 10 seconds.
Step 4: Press Mid button and Unplug the power and reset power for TrueD 2.4Ghz.
For more information, check out this tutorial: