I have a set-up with Frsky R9 Long Range 1.3 GHz system. Earlier I have been able to get RSSI info on the OSD screen, but even though I have dedicated a specific channel for this, RSSI does not show on the OSD. Arduplane only has RSSI type from 1-5, but activating any of them does not solve the issue.
Any inspiration will be greatly appreciated.
Best
Ivan