# Navigator SBUS connection problem

**URL:** <https://discuss.bluerobotics.com/t/navigator-sbus-connection-problem/16283>\
**Category:** Blue Robotics Products\
**Created:** [March 14, 2024, 9:22pm UTC](https://discuss.bluerobotics.com/t/navigator-sbus-connection-problem/16283 "2024-03-14T21:22:43Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![andrewjamez](https://avatars.discourse-cdn.com/v4/letter/a/b19c9b/32.png) [@andrewjamez](https://discuss.bluerobotics.com/u/andrewjamez)\
**Post date:** [March 14, 2024, 9:22pm UTC](https://discuss.bluerobotics.com/t/navigator-sbus-connection-problem/16283/1 "2024-03-14T21:22:43Z")

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Am struggling to get sbus receiver working on the navigator. I can plug it straight in to an old pixhawk and it works so its not the receiver. I read in the setup document that the navigator is pre configured for sbus but on investigation of the bottom side of the board I see the sbus trace is not connected. Can someone please confirm my observation and clarify whether I need to bridge the connection to get sbus working. Thanks

So an update to this is I have bridged the sbus and cetre pads. Still no radio signal coming through… At a loss at the moment.

 ![20240315_101501](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/8/8ddb4a1e71430d493985b6e752d51f8c7e345ab0.jpeg)

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**Author:** ![tony-white](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/tony-white/32/18385_2.png) [@tony-white](https://discuss.bluerobotics.com/u/tony-white)\
**Post date:** [March 14, 2024, 11:54pm UTC](https://discuss.bluerobotics.com/t/navigator-sbus-connection-problem/16283/2 "2024-03-14T23:54:35Z")

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Hi @andrewjamez -  
You should _NOT_ need to bridge that pad for SBUS to function! Here are the recommended steps:

1. Flash Rover Beta (\>=4.4) (assuming you’re trying to use a RC transmitter with a Blue Boat?)
2. Make sure there’s nothing connected to Serial1
3. Set SERIAL1\_PROTOCOL to RCIN
4. set RC\_OPTIONS to 36
5. Restart the autopilot

You should then be able to calibrate and use your RC transmitter from QGround Control Vehicle Setup menu.

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**Author:** ![andrewjamez](https://avatars.discourse-cdn.com/v4/letter/a/b19c9b/32.png) [@andrewjamez](https://discuss.bluerobotics.com/u/andrewjamez)\
**Post date:** [March 15, 2024, 12:13am UTC](https://discuss.bluerobotics.com/t/navigator-sbus-connection-problem/16283/3 "2024-03-15T00:13:45Z")

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Thanks, Yes we are installing the navigator into a boat. Does that mean I will lose function of the serial 1 port?

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**Author:** ![tony-white](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/tony-white/32/18385_2.png) [@tony-white](https://discuss.bluerobotics.com/u/tony-white)\
**Post date:** [March 15, 2024, 5:04am UTC](https://discuss.bluerobotics.com/t/navigator-sbus-connection-problem/16283/4 "2024-03-15T05:04:12Z")

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Correct!

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**Author:** ![andrewjamez](https://avatars.discourse-cdn.com/v4/letter/a/b19c9b/32.png) [@andrewjamez](https://discuss.bluerobotics.com/u/andrewjamez)\
**Post date:** [March 17, 2024, 8:05pm UTC](https://discuss.bluerobotics.com/t/navigator-sbus-connection-problem/16283/5 "2024-03-17T20:05:21Z")

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thank for your help, sbus link all up and running