Shielding
In general, picosatellites are assumed to have minimal shielding. There are two main uses for shielding the electronics and instrumentation: preventing your satellite from being noisy and protecting your satellite from space.
The first is necessary: shielding your electronics so they do not put out radio frequency (RF) noise that contaminates your instrument measurements, your own radio transmitter, or other satellites nearby. Given the low power levels involved, the last bit (contaminating past your own satellite) is unlikely and such noise would be a result of very poor parts choice or assembly, rather than being a shielding issue. Shielding for internal noise may require specific grounding or small bits of foil covers, but neither ...
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