2.4 GHz range cut due to Jetson RF noise

[gregdronsky]

2.4 GHz range cut due to Jetson RF noise

[nv-jeff]

We also found that USB 3 will interfere with the GPS signal as well as wifi (see here for an older investigation from Intel: https://www.intel.com/content/www/us/en/products/docs/io/universal-serial-bus/usb3-frequency-interference-paper.html) If I recall correctly, we used metal foil wrapped around the USB 3 cable to reduce EM interference.

[mtbsteve]

You need to mount the Jetson as far as possible away from the RC Receiver antennas and in particular away from the GPS. In addition, you may shield the Nano with EMI absorbing fabric.
Example source:
https://store.mrobotics.io/product-p/3m-emishield01-mr.htm

I am running a Jetson TX2 w/o any issues on my drone after I applied the 3M foil.

[gregdronsky]

Hi mtbsteve,
thank you for you fast reply. Should I place the fabric in some particular place or just cover it all up in it? It is kind of expensive on farnell, do you think it will work for sure?

[gregdronsky]

Hi nv-jeff,
we have USB 3.0 connections. We will wrap it up with foil. Thanks!

[mtbsteve]

Yes, the USB3 port is actually the main source of EMI. I have applied the 3M foil right below the GPS module. So a 6x6 centimeters piece is fully sufficient.
The Rx antennas are mounted under the drone belly, with the carbon frame plates in between the Jetson and the antennas.
I use the 5GHz wifi for the connection with my GCS, so also no interference with the 2.4RC either.

[gregdronsky]

That is valuable info mtbsteve. Thank You!