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pixhawk / Hardware

PX4 Hardware designs
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PX4FLOW electromagnetic noise #8

Open DrTon opened 11 years ago

DrTon commented 11 years ago

PX4FLOW emmits very intensive electromagnetic noise, so u-blox GPS loses lock in 15cm from it, GPS signal SNR drop is noticable even on 1 meter.

There are two sources of noise - PX4FLOW board itself and UART. Uart is not buffered so all noise from CPU pins goes to UART wires. PCB should be redesigned completely to reduce emmitted noise, maybe to hide all lines between two screen layers on multilayer PCB...

LorenzMeier commented 10 years ago

This is WIP and will end in a board revision soon.

jlecoeur commented 9 years ago

Hi, Do you have an update on this issue?

pkocmoud commented 7 years ago

@LorenzMeier Is this still in progress or can this be closed?

mwshafer commented 1 year ago

Does anyone know what band of frequencies are affected by this EMI?