My ADS-B install

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Steve
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My ADS-B install

Post by Steve » Tue Jun 18, 2019 4:13 pm

So, while the airplane is down for the engine:

viewtopic.php?f=8&t=6905

I am proceeding with my ADS-B out install. I decided on the GDL-82. Main reason was that my transponder is working well, and I don't have a WAAS GPS in the airplane. First step was accomplished during the last Annual while the interior was out. I ran the coax cable for the GPS antenna. I didn't want to add an additional antenna, so I went with the Comant combination GPS/VHF antenna. There is a Diamond SB for how to install it, and I accomplished that over the last 2 days.
DSCN5835.jpg
Old COM1 antenna removed
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Old COM1 antenna doubler removed
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New fiberglas doubler epoxied in place
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Doubler after epoxy cured

Continued below:
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Re: My ADS-B install

Post by Steve » Tue Jun 18, 2019 4:17 pm

DSCN5849.jpg
Drilling new holes for the combo antenna
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Copper foil applied to restore ground plane
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Interior view of installation
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New combo antenna in place

I like the way it looks, but it was a pricey part! Next, I'll be mounting the GDL-82 box under the pilot seat. More photos to follow...

Steve
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Re: My ADS-B install

Post by astaib » Tue Jun 18, 2019 6:01 pm

Very nice !
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Re: My ADS-B install

Post by YCCA » Tue Jun 18, 2019 7:13 pm

Interesting.. I have a DA-20 and had a GDL-82 installed as well but did not have to add an antenna
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Re: My ADS-B install

Post by Steve » Tue Jun 18, 2019 7:55 pm

You must have a WAAS GPS installed. I don’t have one, just an old reliable KLN-94.
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Re: My ADS-B install

Post by Steve » Wed Jun 19, 2019 1:00 am

YCCA wrote:
Tue Jun 18, 2019 7:13 pm
Interesting.. I have a DA-20 and had a GDL-82 installed as well but did not have to add an antenna
The other possibility is that you are driving a non-WAAS GPS and your GDL-82 from a single GPS antenna through a splitter. My avionics guy said that this was a possible way to avoid installing an additional GPS antenna, but I didn't want to do that.

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Re: My ADS-B install

Post by YCCA » Wed Jun 19, 2019 5:22 pm

Steve wrote:
Wed Jun 19, 2019 1:00 am
YCCA wrote:
Tue Jun 18, 2019 7:13 pm
Interesting.. I have a DA-20 and had a GDL-82 installed as well but did not have to add an antenna
The other possibility is that you are driving a non-WAAS GPS and your GDL-82 from a single GPS antenna through a splitter. My avionics guy said that this was a possible way to avoid installing an additional GPS antenna, but I didn't want to do that.

Steve
I have a 430 non-wass so it must have been the splitter option
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Re: My ADS-B install

Post by astaib » Wed Jun 19, 2019 5:42 pm

On mine I have a non-waas 430 that I connected to my transponder anyway.
I nos emit an adsb out that is seen by Flightradar24.

I don’t know if i’m visible by any tower or other airplane that has adsb in.

I think that UL with garmin g3x touch can see me.
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Re: My ADS-B install

Post by Steve » Fri Jun 21, 2019 11:24 pm

Finished up today by mounting the GDL-82 box.
DSCN5868.jpg
Locking nut clips installed in ground strap under pilot's seat
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Foil removed to bond Click-bond studs under pilot's seat
DSCN5876.jpg
GDL-82 box installed with 6-32 hardware and cables attached
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View of GDL-82, Click-Bond studs, and cables to GPS and L-band antennas
DSCN5874.jpg
GDL-82 power wire attached to TRANSPONDER circuit breaker

So, after I did this, I pulled the airplane out of the hangar, powered it up, and hooked my laptop up to the USB connector to the GDL-82. I routed that connector so that it is next to the pilot's side rear footwell. All you have to do is pull the footwell velcro loose to access it. There is a program called the GDL 8X install tool that you download to your laptop. As soon as I opened it, it detected the GDL-82. I entered a few pieces of information, like my tail number, ICAO address, and distance from the nose of my airplane to the GPS antenna (14 feet in my case).

Everything was green, with no faults, and my ADS-B In on Foreflight showed me active. Of course, I can't do the verification flight, as I am in the process of pulling my engine...
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Re: My ADS-B install

Post by Steve » Wed Aug 21, 2019 7:09 pm

So, just to close this chapter...

I finally got to do my ADS-B validation flight today. It was delayed significantly by my engine woes (see: Ruh-Roh thread). So, today I went out to fly in Rules Airspace for about 40 minutes.
Screen Shot 2019-08-21 at 2.05.00 PM.png
My GAIRS report was "All Green" so I submitted the Rebate Request on line this afternoon.

Steve
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