Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [aviation-electronics]

20 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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9
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2 answers

Longest range remote control

I would like to make a long range (5Km) quadcopter. As of right now, I'm just trying to find out the best way to control it. I know that there are some 5Km R/C transmitters but they are the size of brick which is a little inconvenient. I was…
Riley Lloyd
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5
votes
2 answers

Why 28V DC bus is a de facto standard in Aviation industry?

12V bus is a de facto standard in cars. Aviation has 28V DC bus as a de facto standard for most of the commerical jet aircrafts. Any particular reason behind the selection of 28V for the DC bus?
KawaiKx
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3
votes
2 answers

What type of electronic hardware is best suited for high temperature applications?

What type of electronic hardware is best suited for high temperatures, roughly 200°C? From what I've discovered, most FPGAs, microprocessors, and DSPs have an operating temperature of 70°C or below. So what type of digital or analog circuitry should…
behrad mahboobi
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2
votes
1 answer

How to make a cable to record cockpit intercom?

I would like to record the cockpit intercom with my iPhone and a recording app. I do not know much about impedance matching (other than what it is). I would like to make a cable that plugs into the audio out jack to my headset and has an output…
Sponge Bob
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2
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1 answer

Special considerations for circuit prototyping near an airport?

I am a hobbyist circuit designer. I recently moved to a home near an airport. I am directly under the flight path, and sometimes planes fly as low as 500-1,000 ft over my house. My circuits are moderate speed (few hundred megahertz up to maybe 1…
jemalloc
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2
votes
1 answer

Failures with MAX16127 chips

Recently I have started using the MAX16127 chip in my designs to protect against overvoltage conditions (Do-160G, Section 16.6.2.4 Category Z, for a very specific condition I am trying to survive, 80 V for around 0.1 ms). The problem is that even…
Hannes
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2
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0 answers

What is the advantage of having multiple remote terminal (RTs) in 1553B terminal?

I have been trying to understand the difference between 1553B terminals with single and dual Remote Terminals (RTs). I have given 2 links below for the references: link 1: Single RT link 2: Dual RT How this extra independent remote terminal will…
student7
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How transmit and receive work from the same antenna and pin for RFD900?

I'm currently using the RFD900 SMD version for an avionics bay for long range GPS capabilities. I have read the datasheet and saw this: The RDF900ux(-SMT)/868ux(-SMT) modem has two antenna ports and firmware which supports diversity operation of…
Lucas Webb
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1
vote
2 answers

How to limit power consumption to a certain value?

For the SAE Aerodesign competition, there is a requirement to create an electric RC airplane that does not exceed 750 W of power consumption at any time. The electrical circuit consists of a 22.2 V (nominal voltage) Li-ion battery connected to an…
Jesus Vargas
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1
vote
2 answers

Aerials at Perth Airport (PER)

I found these things (they're aerials I presume) with six "spokes" at the Perth Airport. Does anyone know what they're for? Thanks. Source: Google Maps Source: Google Maps Source: https://www.youtube.com/watch?v=WjJYSquq4jU&ab_channel=RowinDreef
kene02
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Why would venting an engine create a negative amperage on a generator?

I'm writing simulation software for a civilian helicopter. The helicopter has two engines and two generators. Normally, we calculate the amperage reading of a generator through Ohms. I = W / V. However, there is a venting switch on the overhead…
Trevor Hickey
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1
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2 answers

How to interpret the static voltage susceptibility table?

What does the range actually indicate? Does it tell the range of operation of these devices or the range in which the devices can perform optimally given an external polarizing field. correct me if i'm wrong.
vijayprasanna13
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0
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1 answer

Level shifting a pitot tube signal to an Arduino ADC

I have a speed sensor (pitot tube) that operates as described in the figure below. My problem is that the resolution of the sensor is not good when read by the Arduino UNO ADC (around 2.75m/s.) My solution would be, as we don't work with negative…
Ricardo Silvestre
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0
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0 answers

Angular displacement and velocity calculation on rocket

We're building an avionic system which will fly onboard on our rocket. And we have IMUs on our avionic system and we want to get angular displacement and velocity values with integrating gyroscope and accelerometer datas. But as you can guess we…
hasan mert karabacak
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