Troubleshooting required for Transmiter is not responding in mission planner's radio calibration

I am developing a FPV racing drone.

In short, I have a hexa frame drone with pusher motor configuration, all wirings done. I am using FC Mateksys H743 V3 SLIM. I want to test my drone with the generic .apj copter, but somehow my transmitter (T14SG) is not able to calibrate in mission planner although the transmitter binded well with the receiver (Futaba R7008SB).

Kindly please let me know what is needed to be done ? Either troubleshooting or any additional parameters that are needed to input in mission planner or need to do some setting in transmitter itself. I would be highly obliged. Thanks in advance.

Did you review the RC Input info provided here?
Ardupilot Matek H743

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Thank-you so much for your comment. I checked the RC input info and changed the parameters as mentioned. However, it would be nice to know which ports from receiver R7008SB is needed to connect (S.BUS 8/SB or S. BUS 2) ?

Thanks in advance. :smiling_face:

Connect to the S.bus port

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Thanks for helping me out. However, I am uploading the picture of the receiver (R7008SB), I opened out the outer case and pins because of shortage of space, so if I need to connect to S.BUS port directly on PCB board of Receiver, which colors of wire will go to where ? Kindly please guide me. Once again thanks in advance.

Sometimes it is easier to check the manuals as asking others and waiting hours for response.
On FUTABA R7008SB the Pad of channel 8 can alsobe configured to outbut the Sbus serial data.
This need to connected to the default Rx6 pad on the Matek H743 Slim.
Also GND must be connected between both modules and Vcc for the R7008SB can taken directly from your BEC or from a corresponding Matek Pad

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I’m fully onboard with using components I already have. In this case I would seriously consider using a new/modern receiver and matching transmitter.
There’s a lot of ELRS 2.4GHz receivers that are about half the size of your thumb nail.

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