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Questions tagged [aerospace]

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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/...
MFerguson's user avatar
  • 209
3 votes
5 answers
2k views

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 ...
LastStarDust's user avatar
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0 answers
53 views

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 ...
Anna Koroleva's user avatar
16 votes
5 answers
5k views

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 ...
Caleb Laws's user avatar