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7/26/2025, 12:28:09 PM
>>64032045
Yeah, that "DC to daylight" is bullshit, but I can see how it could fuck up the electronics.
I imagine it would be like throwing the drone into an EMC chamber. There are lots of different systems in a drone, which communicate using different protocols and different frequencies. These communications move along traces on the PCBs, or sometimes wires, both of which can and do act as antennae and pick up EM radiation. If the radiation is strong enough to induce currents in these communications, that will produce false signals, and mess up the data being transmitted. I doubt that the radiation is strong enough to literally fry these things at 2km, but you don't need to.
The only problem is, that it's not that difficult to harden a PCBA against this kind of radiation. You don't even need any heavy shielding material. Make the two external layers of the PCB into full GND planes, stitch the edges of the board with vias, and cover any sensitive components, such as ICs, with EMI suppression shields, which are basically small metal covers. The added cost and weight is negligible.... By the way, does any of you guys want to create a startup to sell EM hardened drones before the competition catches up?
Yeah, that "DC to daylight" is bullshit, but I can see how it could fuck up the electronics.
I imagine it would be like throwing the drone into an EMC chamber. There are lots of different systems in a drone, which communicate using different protocols and different frequencies. These communications move along traces on the PCBs, or sometimes wires, both of which can and do act as antennae and pick up EM radiation. If the radiation is strong enough to induce currents in these communications, that will produce false signals, and mess up the data being transmitted. I doubt that the radiation is strong enough to literally fry these things at 2km, but you don't need to.
The only problem is, that it's not that difficult to harden a PCBA against this kind of radiation. You don't even need any heavy shielding material. Make the two external layers of the PCB into full GND planes, stitch the edges of the board with vias, and cover any sensitive components, such as ICs, with EMI suppression shields, which are basically small metal covers. The added cost and weight is negligible.... By the way, does any of you guys want to create a startup to sell EM hardened drones before the competition catches up?
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