For the OSD tab, set it up like this:
Signal strength in Betaflight - BF 4.1 and later
Since version 4.1 BetaFlight can read the link information from the CRSf stream. This will give you the RSSI
reading in dBm (0 - -130) and the LQ reading similar to the TBS OSD (300 - 0 %).
To use this new method, you need to disable the RSSI channel setting in the receiver tab and activate the
following elements in the
OSD
tab.
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