Questions tagged [aerospace]
4 questions
16
votes
5 answers
Where is an airplane's electrical ground point?
I recently had a conversation on Reddit where someone claimed that the ground reference on airplanes was their fuel tanks. This seemed a bit off to me but I know nothing of aircraft in general. I assume that there is Ground Fault protection on the…
Caleb Laws
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3
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5 answers
What are the limitations of USB in aerospace (especially microsatellites)?
I have just joined a startup company that builds microsatellites. But I am quite new to the aerospace field.
I noticed that to connect components with the onboard computer we use many electrical protocols such as SPI, I²C, RS-485, SpaceWire, etc.,…
LastStarDust
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0
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1 answer
Whats the point of SDI being "source/destination" identifier if 429 busses are only allowed to have 1 transmitter?
Every reference I've looked at for Arinc429 specification has something like this:
Okay, pretty simple. There is only one transmitter and up to 20 receivers.
However, the name of the SDI (source/destination identifier) field is confusing me.
It…
MFerguson
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0
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How to choose a wrap (station) antenna for space application?
I am looking for my research project a wrap (station) antenna. It is assumed that the antenna works in space (lunar) environment. The total dose for my device is 30 – 50 krad. Gain 3-5 dBi. Frequency is S band.
Does anyone know of what the antenna…
Anna Koroleva
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