Cleanflight and betaflight see rxrange CLI command

It seems like there are a lot of questions about various Cleanflight and betaflight configurations with Deviation. Please read this section of the Cleanflight docs (also applies to betaflight).

The Devo and other transmitters do not necessarily send the PWM signal endpoints exactly as used in CF/BF. In my experience with DSM receivers, Devo sends a range from 1159 to 1841, but CF and BF want 1000-2000. You can adjust Devo settings by extending the scale or (IMHO - better) through the CF or BF rxrange CLI command.

Yep I ran into this too on a BeecoreF3Evo-Flysky board in CF. Had to add -4.6 of subtrim to every channel.

yes and deviation use % for scale. Also it depends on the protocol used.
Is there a way to read the absolute channel value as send by Tx in ms? (indeed depending on protocol selected?)

As example I had the issue in the past using model file based on Frsky D4R (PPM) and then changed the receiver to Frsky X4R (Sbus), I had to re-scale by 20%





Or only way to set up is to check the Rx range in cleanflight.