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Both transmitters (RFD900, 1.3ghz VTX), should be placed in areas with adequate cooling/airflow. They are not weatherproofed, but do tend to be cooled passively by air moving across their heatsinks. In ground ops mode, it may be necessary to actively cool the devices over extended periods of time, especially if transmit power is high.
Cameras
There will be two pilot cameras. Both should offer +/- 10-30 degrees of adjustment. One will be mounted forward-facing, while the other will be mounted downard-facing. Both will feed into a video mux switch which then feeds into an OSD, before feeding to the VTX.
Sensors
The VN-300 receiver (red box) , as well as the BMX160 IMU should be placed as close to the center of mass of the plane as possible, with the axis aligned (x is forward, refer to ZPSW Documentation for more detail). This can be done above or below the passenger compartment, but should be in a weatherproofed section of the plane.
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Both VN-300 receptors & their grounding planes should be placed 1M apart, facing directly upwards, above other elements. These can will be mounted at the ends of inside the wings, or on vertical mounts above the wings (like an AWACS disk) if airflow over wings is a significant issue. The VN-300 is significantly smaller than what is pictured on the right, and two vertical spars on each wing could be sufficient. The vn-300 is not weather rated, and . The vn-300 is not weather rated, and should be protected.
NEO M.8 GPS Modules should be placed facing upwards, on the wings away from one another. There is no significant distance requirement beyond an initial small separation. This can be done by placing both on opposite ends of the fuselage, one on the fuselage and one on the tail, or however the mechanical team sees fitother soures of RF transmission. We anticipate having one for ardupilot, and one from the competition organizers.
Airspeed sensors should be placed in clean air, facing forwards.Barometers can be placed as necessary
Optical flow sensors & rangefinders or lidars should be mounted at the bottom of the drone, in our sensor cluster.
Antennas
The RFD900x Antennas should be placed 90 degrees apart from each other. There is no distance separation requirement. The RFD900X transmitter itself should be placed somewhere with adequate airflow.
The VTX Antenna should be placed as far as possible from other sources of RF interference (such as other antennas, sensors, or ESC’s). The tail or the bottom of the fuselage may not be bad optionsAt the moment, the plan is to place the singularity 1280 on the tail of the drone.. The VTX transmitter itself should be placed somewhere with adequate airflow.
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