GDL 82 Installation - Page 2

Caveman · #11 03-31-2018, 06:03 PM

Quote:

Originally Posted by uk_figs

Joe
Is your ELT antenna in the tail like most of us?
Figs

Not anymore, Figs. I moved it inside the baggage compartment like Steve. That might also be a reason mine ELT isn't interfering? If you haven't run the tests in the install manual and have an AK-450 I'd run them. It's easy to do. Call me if you have questions...

Joe

Caveman · #12 03-31-2018, 06:09 PM

Quote:

From the GDL-82 Installation Manual:

Quote:
If a VHF COM transmitter causes problems with the GPS on selected frequencies, as listed in the post-installation checkout, the problem may be due to the ELT. To verify, disconnect the ELT antenna coax at the ELT unit. If the ELT is causing the problem, contact the ELT manufacturer or replace the ELT.

I read that and am wondering if the FAA was made aware of the problem with the AK-450 and investigated Ameri-King to see what was causing it and that's what prompted the AD?

Joe

RV-4 · #13 03-31-2018, 10:57 PM

Thanks Ken,

Much appreciated..

----------------------------------------
Bruno,
Here is a link to photos of install.

https://photos.app.goo.gl/IyAbQXVxt06qTzm93

Hope this works.
Ken
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snopercod · #14 04-20-2018, 06:07 PM

For us fiberglass guys, does the case of the GDL-82 need to be "grounded" (negative side of the battery)?

snopercod · #15 05-02-2018, 02:09 PM

The guy from the FBO had a Daniels crimper so he came over and crimped all the wires for my GDL-82 today. I say "all" but the white and green wires from the Garmin-supplied USB-B connector were too small to crimp. His crimper only went down to 24 AWG and these two were smaller than that. The red and black wires crimped just fine, but he had to solder these two. One would think that Garmin would have alerted us to that fact...

g3xpert · #16 05-02-2018, 03:27 PM

Quote:

Originally Posted by snopercod

The guy from the FBO had a Daniels crimper so he came over and crimped all the wires for my GDL-82 today. I say "all" but the white and green wires from the Garmin-supplied USB-B connector were too small to crimp. His crimper only went down to 24 AWG and these two were smaller than that. The red and black wires crimped just fine, but he had to solder these two. One would think that Garmin would have alerted us to that fact...

Hello snopercod,

The fifteen 336-00021-00 (M39029/58-360) contact pins which come with the installation kit are size 22D.

Using a Daniels AFM8 crimp tool with a K42 positioner, use a setting of 3 for the 24 AWG Red and Black wires, and use a setting of 1 for the 28 AWG White, Green, and Drain wires.

Nothing to it.

Steve

snopercod · #17 05-02-2018, 03:52 PM

Quote:

Originally Posted by g3xpert

Nothing to it.

Easy for you to say LOL! The crimper the FBO used was a Daniels, but not the AFM8. No matter, we got 'er done. I asked earlier on this thread if the case of the GDL 82 needed to be "grounded" on a fiberglass aircraft. I even called Garmin tech support and the tech really didn't know but thought not. He thought the case was "probably" connected to pin 14 "Aircraft Ground" internally. So should I tie the case to battery (-) or just leave it floating?

g3xpert · #18 05-02-2018, 05:10 PM

Quote:

Originally Posted by snopercod

Easy for you to say LOL! The crimper the FBO used was a Daniels, but not the AFM8. No matter, we got 'er done. I asked earlier on this thread if the case of the GDL 82 needed to be "grounded" on a fiberglass aircraft. I even called Garmin tech support and the tech really didn't know but thought not. He thought the case was "probably" connected to pin 14 "Aircraft Ground" internally. So should I tie the case to battery (-) or just leave it floating?

Hello snopercod,

I don't have a GDL 82 to check, but if it is like our transponders and all of our G3X/G3X Touch system devices, the power ground is also connected to the chassis/case ground, so no additional connection is necessary.

You can do a quick check with a multi-meter between the case and power ground. If you find them isolated, I would run a ground to the case, otherwise you are good.

Thanks,
Steve

snopercod · #19 05-02-2018, 06:11 PM

Quote:

Originally Posted by g3xpert

You can do a quick check with a multi-meter between the case and power ground. If you find them isolated, I would run a ground to the case, otherwise you are good.

I'll do that tomorrow after I insert the pins in the connector body and mate the connector. Thanks, Steve.

snopercod · #20 05-03-2018, 12:35 PM

After rechecking the wiring, I inserted the pins into the connector body. The green wire to the USB-B socket broke off so I had to re-solder that one. I have to say I'm disappointed that Garmin chose to use a cheap Chinese USB connector in a $1795 product. Well, if it lasts long enough to get the unit programmed, I guess I can live with that.

The crimper we used was a Daniels AF8. As you can see, it only goes down to #26 AWG. That setting worked for the black and red wires, but not the green and white. I never got around to checking continuity to the case of the GDL-82.