Looking for a DER who works on avionics

[peter-h]

This is for my proposed Sandel 3500 installation in the Socata TB20GT...

Over the past few months I have written to several firms (all in the USA) and none have replied.

I don't know if they don't do foreign business, or if they only talk to known avionics installers.

 

[murphey]

Unless the DER has an FCC license you're out of luck. IIRC you need (for the US) an avionics tech with FCC for the installation and an A&P signoff. What are the UK requirements?

 

[gismo]

This is for my proposed Sandel 3500 installation in the Socata TB20GT...

Over the past few months I have written to several firms (all in the USA) and none have replied.

I don't know if they don't do foreign business, or if they only talk to known avionics installers.

Peter, check your email. I sent you some contact info for a local (to me) DER.

 

[peter-h]

What is "FCC" ?

What are the UK requirements?

Just the FAA ones.

If I had a Euro-reg airplane I would be dealing with an EASA Part 21 company, and what a joy that would be

Lance - many thanks.

 

[murphey]

What is "FCC" ?

Just the FAA ones.

If I had a Euro-reg airplane I would be dealing with an EASA Part 21 company, and what a joy that would be

Lance - many thanks.

Sorry - FCC - Federal Communications Commission. In the US, radios and such are blessed by the FCC, not the FAA. In order to work on avionics, the shop/person must have an FCC license. Many have an A&P on staff in order to sign off the actual installation.

 

[gismo]

Sorry - FCC - Federal Communications Commission. In the US, radios and such are blessed by the FCC, not the FAA. In order to work on avionics, the shop/person must have an FCC license. Many have an A&P on staff in order to sign off the actual installation.

To be more specific, an FCC license is only required to work on most transmitters or transmit sections of radios.

 

[peter-h]

Yes, I have an FCC radio license myself (being a US pilot flying outside the mainland USA).

Why does the DER need an FCC approval when he won't even see the airplane? And an EHSI is not a "radio" of any sort.

The way this works is that the avionics shop (or me in this case) prepares the drawings and sends it off to a DER. Most UK shops reportedly use www.derassociates.com but they never reply to my comms so I guess they deal only with known avionics dealers. The DER then does a certain amount of work, approves the design, and sends it back with an 8110-3 which the UK installer then sends to Oklahoma (I guess) with a 337, and installs the job.

The DER works totally remotely. It's a pure paperwork exercise; last I heard the rate is $300 per signature.

I will have the design finished and checked by several avionics engineers; that much is no problem. I understand nearly all of it; the only bit I am not sure about are the connections to what I loosely call synchro/resolver stuff. Sandel use only a small subset of the available signals, and I can see that with software you don't need the whole lot to find out the angular position of the rotor. The Sandel IM is somewhat "generic" in this department, but I am getting this sorted by a real old instrumentation specialist.

 

[weirdjim]

To be more specific, an FCC license is only required to work on most transmitters or transmit sections of radios.

Not quite. First we should define "FCC license". Any citizen or legal resident can get what is called a "Restricted" (used to be Third Class Radiotelephone) license to do nothing more than push the transmit button on the two-way radio. Comes for a few bucks and a filled out form, no questions asked.

With an exam comes what is called a "General Radiotelephone Certificate" (what used to be called "Second or First Class Radiotelephone License") that allows you to align/repair/calibrate two way radios that have been type accepted or type approved. Those two blessings come in two parts, one for the transmitter and (generally) a Part 15 for the receiver. You have to have the ticket to work on either section.



Jim