I am installing an Emlid Reach in a UAV to work with a Reach RS on the ground.
All works very well, except that when the drone is switched on, the satellite reception drops by 10-15% due to noise and I lose fix.
The tallysman antenna is placed on top of the drone and has a 10cm aluminum ground plate. I thought this would be enough to eliminate all EM interference since EM waves don’t penetrate aluminum.
But still, even powering the reach separately from a USB power source, when the UAV electronics are turned on the reception drops and the solution is lost.
How would you go about solving the problem? Should I try to isolate the reach itself? The cable?
The biggest interference seemed to be coming from the on-board linux computer, or from its power supply
I found this @RickJ looking through the forums, but my issue doesn’t seem to travel through the cables
I would try usual EMI cures. Good low resistance grounds. High quality USB3 hub. Added shielding on USB cables &hub. Adding low pass filtering to USB data/power leads,Etc., etc.
Potential multiple causes. Lots of trial and error to solve.
(Isn’t the easiest thing in the world to do…)