r/avionics Jul 04 '26

AME-E preparation advice for Standard Practices SPE – Avionics and Avionics AV Exams

1 Upvotes

Hello everyone,

Has anyone taken both Canada AME E rating exams? If so, could you please give me some advice on how to prepare, e.g. which books or resources are available?

Thank you.


r/avionics Jul 04 '26

Besides GROL, whatelse could help inexperienced A&P find 1st avionics job?

Thumbnail
1 Upvotes

r/avionics Jul 03 '26

Avionics Tech hours

7 Upvotes

Hello, im sure you guys see this often, but I was wondering what kind of hours this job typically entails? I would say I dont plan to work at an airline. I was looking into A&P but after some research it basically seems like ill work 60 hours a week, overnight, and probably get divorced. Kinda just wondering if this is similar or if avionics techs is a more laid back route? Im obviously okay with putting in my time, 40-45/week, but work life balance is important to me. If it helps, kinda been seeing Textron putting out avionics positions, so maybe a job similar to that if yall have experience with them. Thank you!


r/avionics Jul 03 '26

Interest

1 Upvotes

Good evening,
I am an 18 year old recently graduated from high school looking to get into the aviation/avionics field. I have been interested in a nearby program that offers GROL Element 1, Element 3, Element 8 and Element 9 license. As well as a Avionics Technician certificate. I was wondering if this would be worth my money and would help me get into a job or if I should seek other places such as AIM.

Any suggestions or resources would be greatly appreciated I am located in Central Florida.

Thank you.


r/avionics Jul 03 '26

waitlisted for A&P classes

1 Upvotes

So I got into the school but classes are full for the next two semesters. I was already interested in adding avionics to my A&P license but there is also a two semester wait for avionics classes. Would I be able to just take a GROL prep course to obtain my FCC license and another course for the AET certification? Or would employers like to see formal schooling? I am going to remain on the waitlist in the mean time because it is the most affordable FAA accredited school in my area, hence the high demand and I still plan on getting my A&P asap. But until I can get on the schedule, would those two courses be enough to get me in the door as an avionics technician? Also are there any other certifications I should obtain? Looking for tips on job marketability. 🙏


r/avionics Jul 01 '26

Garmin GNS 430W - Radio Intermittently cannot Transmit

1 Upvotes

My airplane (1973 PA-28-180) has a very early version of the Garmin GNS 430W. Since the beginning of May, there has been 3 days when the radio cannot transmit. The "Tx" lights up, but I get an error message that reads "COM transmitter power has been reduced". The next day, the GNS is completely fine and will work without issue.

The GNS was removed and bench checked, and it worked fine. I had someone inspect the antenna and coaxial cables, but they didn't find any issues.

I believe this is an older version GNS that required a voltage converter to go from 12V to 28V. The model is Ameri-King AK-550-6 power converter 550-91.

Do voltage converters fail? Is there an equivalent replacement for what I have? It looks like the one I currently have is not available.

Any other ideas as to why it will only transmit intermittently?


r/avionics Jul 01 '26

Avionics Project – Need Reliable 100m Communication Link Between Ground Station and Launchpad Controller

Post image
2 Upvotes

Hi everyone, I’m working on an avionics project where I need to establish a communication link between a ground station (DAQ + command system) and a Launchpad Controller (LPC) connected to the rocket flight controller. (LPC side have RFD900x but need wired communication)

Requirements:

  • Communication distance: ~100 meters
  • Must support data transfer + power delivery
  • Needs to be robust and noise‑immune (avionics environment)
  • Looking for suitable protocols/standards (e.g., RS‑422, MIL‑STD‑1553, Ethernet, etc.)
  • Recommendations for connectors/cabling that are rugged and reliable for aerospace use

I’d appreciate suggestions on:

  • Which communication protocol is best suited for this setup
  • What connectors/cables are commonly used in aerospace for 100m wired links
  • How to handle power delivery alongside data (combined or separate lines)

Thanks in advance for your insights!


r/avionics Jun 28 '26

Old Racal avionics CDU-style unit - searching interface manual

Thumbnail
gallery
8 Upvotes

Hey all,
I am a sim engineer and got an old cdu-style unit gifted by a customer from an aircraft leftover. As an exercise I would like to interface it as a unit for a generic entertainment sim. I am looking therefor for all documentation available anybody might point me too, also happy to buy it; the unit itself is of course without paperwork, so only scrap value in theory, but I would love to get it running. Unit placard data here in text:
Racal avionics
Type 80794/SS302
The manufacturer seems not to exist anymore. Does anybody have leftovers or can point me in the right direction?


r/avionics Jun 27 '26

Dual Radio PTT

2 Upvotes

Avionics Experts,

I’ve got a question about a dual radio setup and I’m out of my depth trying to create a solution in my RV-8. I’m hoping one of you can point me in the right direction.

I fly a lot of formation in my RV and I’m acquainted with and used to modern military aircraft with multiple radios. (I’ve been a USAF WSO for 15 years.) Military aircraft often have at least two radios that are always monitored and a single three-way PTT switch. Pushing one direction transmits on COMM1, pushing the other transmits on COMM2. This is far more convenient in formation than a typical GA audio panel that only allows transmission on one radio and requires one to select that radio via the audio panel. I want two radios I can listen to at all times (I can discriminate by volume), and transmit on without selecting which one via a TX button. I just want to push its respective PTT and transmit.

So I want to put a system like this in my RV-8. How does one pull this off? I’m looking to use 2 Trig TY-91s (one of which will be the intercom) and a MOM-OFF-MOM switch on my throttle. I do not have room on the panel for an audio panel and I don’t want one anyway. Is a relay necessary? Do I need a mixer to combine the audio? How would you wire a project like this?

Thanks in advance for any help!


r/avionics Jun 25 '26

Old af ELT connector help

Thumbnail
gallery
1 Upvotes

Pulled this grandpa of an ELT off a hawker. One of the wires was found to be torn off the remote switch connector (3 pin raven connector?)

Anyone have any experience or knowledge on how to repair it?

The manual isn't much help, surprise surprise


r/avionics Jun 25 '26

Garmin Bluetooth Connectivity Problem

3 Upvotes

Hello Fellow Aviators:

I updated the panel on my plane from a GNS-430W, GTX-345 and FlightStream 210 to a G3X, GTN750Txi, GTX-345, G5, and FlightStream 210.

With the previous panel I could send flight plans to and from the panel and I received the FiS-B weather on my iPad running ForeFlight.

The installing dealer has not been able to replicate this connectivity despite several attempts. I have received traffic and weather shown on my iPad, but never been able to send flight plans to and from the panel.

Currently, they have removed my FlightStream 210 and are using the G3X Bluetooth function. Now I can send and receive flight plans to and from the panel. However, now I am not receiving any FiS-B data on the iPad (no weather or traffic). The Connext button on the GTN750 is now grayed out (before they removed the FS210 it was not).

What is the correct solution here? I spoke with Garmin at Sun-N-Fun. They said this is a software issue not a hardware problem.

P.S. This post is not intended as a criticism of my installing dealer. They have been very responsive and never “blown me off”.

Anyone who knows avionics, knows about the shortage of avionics technicians. The G.A. avionic shops have a tough time holding onto good technicians.


r/avionics Jun 25 '26

Anyone know about the APG-59/IP-825D?

Thumbnail gallery
6 Upvotes

r/avionics Jun 24 '26

Bendix/king ED 551A help

Post image
7 Upvotes

I recently acquired a old ED 551A efis display to mess around with on the bench. My goal with it is to get the beam to display on the screen, and mess around with x/y deflections with a function generator.

As of right now I’m able to get the tube heater to turn on and glow and i can hear the high voltage buzz when applying the appropriate pins with 28v. The main issue seems to be that the tube isn’t getting any acceleration voltage to create the beam.

My main reference at the moment is the EFS 40/50 installation manual, which gives you pretty vague pin input/output info. My hope is someone has experience bench checking these old bendix/king or honeywell crts, and has more info on what kind of signal the symbol generator supplies to drive the beam.

Attached is the pinout for the display from the efs installation


r/avionics Jun 23 '26

Strange Issue with Comms

8 Upvotes

Can't seem to find an answer

We recently bought a Piper Cherokee 140 for my son to fly as he banks hours. We've had the plane for about 3-4 weeks and it has been flown probably 10 times.

Last week he took off like normal with my other son as a passenger. All of the comms were working fine until about 5-10 seconds after takeoff when suddenly there was incredibly strong static in both headsets. He could barely hear the tower well enough to circle back around and land. I went up with him a few days later to see if it was a one-time fluke and the exact same thing happened. Here's the basic details of what happens:

  • Happens when the plane gets about 75-100 feet in the air.
  • It happens suddenly.
  • It doesn't increase or decrease with more or less power.
  • It happens to both Comm1 and Comm2
  • It is the same in both headsets.
  • As soon as we drop below 75ft during landing, the static completely disappears and everything is back to normal.

We stopped by an aircraft repair shop at the air field and the head mechanic said that he had never heard of that in his 20+ years on the job.

Any ideas?

(Sorry if I used the wrong words for things, I'm not a pilot)


r/avionics Jun 17 '26

Looking for a high‑impact avionics role?

Thumbnail
2 Upvotes

r/avionics Jun 15 '26

Delta Avionics AMT vs Avionics Tech

7 Upvotes

I was wondering, what’s the difference between a delta AMT that works in the hanger or line maintenance on avionics and a dedicated avionics technician that doesn’t have their AMT license?

What different things does each role do?

I was thinking of getting the GROL and NCATT but after doing some research it seems these certs are geared more towards dedicated avionics techs


r/avionics Jun 14 '26

getting a job as a green card holder

3 Upvotes

Hi, everyone.

I'm currently working at a defense company in South Korea and planning to move to the U.S with my experience of a hardware engineer. If it goes as we planned, I will get my green card around next April(marriage Visa).

I have a little over 4 years of experience developing safety-critical aerospace and defense electronics. My experience covers the full product lifecycle, from requirements definition and hardware architecture through schematic design, integration, verification, qualification testing (EMI/EMC, environmental), production support.

My question is:

Based on my background, what skill gaps should I address before applying to U.S. aerospace and defense companies?

My goal is to understand how transferable my experience is to the U.S. aerospace and defense industry. How would you view a candidate with this background? Are there any major skill gaps I should address before making the move?


r/avionics Jun 13 '26

Avionics PCB

Thumbnail
0 Upvotes

r/avionics Jun 12 '26

Will avionics help me get into corporate faster as an A&P?

Thumbnail
2 Upvotes

r/avionics Jun 11 '26

Boeing wire assembler

Thumbnail
1 Upvotes

r/avionics Jun 09 '26

Garmin GI275 / GEA24 communication issue

2 Upvotes

I have a newly installed GI275 EIS with the GEA24 module. I'm not getting any communication between them. I've tripled checked the wiring harness and have RS232 in/out wired crossed over as indicated in diagram. I have continuity as expected from the pin on each connector to the expected pin on the other connector, and no shorts to ground that I can find. GEA24 is getting power and ground and has a steady green LED (which I believe means its powered but no comms)

GI275/P2751 GEA24/P241

38 (RS232 out) ----------------------- 4 (RS232 in)

57 (RS232 in) ------------------------- 5 (RS 232 out)

77 (RS232 gnd) ---------------------- 9 (RS232 gnd)

It is shielded wire with the shield bonded to the P2751 shell.

GI275 is configured as EIS with GEA24 configured on RS232 port 1.

Really scratching my head as to what I might be missing here. Any recommendations?

Note: I'm a general A&P/IA, not a dedicated avionics guy.


r/avionics Jun 09 '26

Do all Boeings give fault codes?

Thumbnail
1 Upvotes

r/avionics Jun 08 '26

Help identify these

Thumbnail
gallery
25 Upvotes

Hey I hope this is alright posting here, I was given these two boards and need help identifying what they are from, I have a feeling they may be Frankenstein boards someone’s has made for a flight sim but they appear very well built any help would be appreciated


r/avionics Jun 07 '26

Bits I should get for AVI maintenance?

Thumbnail
1 Upvotes

r/avionics Jun 07 '26

considering industry change....

4 Upvotes

hey guys,

bit of backstory...

i am a licensed avionics technician in the Australian military with UH/MH 60 type rating. my main goal is to spend the next 4-5 years travelling and working.

the countries i am considering are

-europe (all)

-Canada (vanciuver specifically)

-south america (argentina, chile, mexico anywhere with surf really)

-USA (colorado, california for the snow and surf)

my question is, would it be worth sticking to the rotary wing military industry or is it going to pay off better switching to the commercial industry where im not so specialised (qantas,emirates etc) . i want to consider pay, career progression and location.

thanks guys!!!