I need to get GPS telemetry from my FC which is a Speedybee F405 Wing to my FRsky receiver to see telemetry on my tandem X20 tx. Currently I'm using a R9SX receivers with sbus out to the FC . The FC has a dedicated T2 telemetry socket which I'm not sure has an internal inverter. Anyway I'm connecting that to the sport pin of the receiver which I assume is inverted. I can't find any telemetry sensors from the FC. I could buy a new receiver if necessary that has an inverted sport pin but which one? I'd prefer 900mhz but could use 2.4ghz if necessary. Please help ease my confusion

SpeedyBee F405 V3 won't have inverted port's features support even I'd tried to change the serial to be inverted with configure to some thing liked tlm_inverted or tlm_halfduplex (not with inverted board), mean it won't have Fport or smartport features supported.

I'd also ask to official Speedybee, they said they won't do this to wires for inverted for the cause to prevent electronic components happend to be burnt.

And also Speedybee V3 only supported Multishot (Not digital protocol contained with specific signal, even switch to SHOT 600 or SHOT 300 wil change back) , means you can't switch turtle mode, It is beyond that Flight Controller's capabilities.

But I don't know "SpeedyBee V4" could be improved on working under Turtle mode with support Dshot 600 or not