Darrel Starr
Registered User
Plymouth, MN
The mandate is to comply with ADS-B Out by January 2020 so I am aiming for the winter of 2017-18 to install a unit. I figure that the dust will settle by then and prices stabilize. By installing about 2 years early I will beat the last minute rush and I want the plane to be apart in the dead of winter. So I thought it would be a good time to start studying the hardware and get ready to really look over the hardware at Osh this year. I have a certified Super Cub that I wired myself (see complete diagram in the Members area) so I don't need an avionics shop mucking about in the innards of my plane -- just sell me the hardware and give me the installation guide.
As Mark Baker, head of AOPA, has said several times in speeches, "you don't have to have an avionics shop install the hardware, just install it and get an IA to sign it off".
Well, problem #1 -- all ADS-B Out manufacturers sell only through dealers (ie, Avionics shops). For certified aircraft, all of the big distribution houses; Aircraft Spruce, Saratoga, etc. will sell "install only" -- meaning that they ship your hardware to one of their approved avionics shops.
Problem #2, the manufacturers might or might not email an installation guide to be studied. L3 Lynx did email a guide, Garmin told me to go to a dealer. I called Aircraft Spruce who might have sent it to me IF I had been experimental, but not to an owner of a certified plane. Regardless, some of this documentation is seeping out into the Internet.
Mark Baker recently said that it was time to act now that ADS-B out is under $2000. But even he did not understand what the installations require because the L3 Lynx NGT-1000 he was touting that "only" costs $1600 (what Mark was fixated on) also requires a $1000 control head, about $600 in antennas and of course is sold only by avionics shops so add some more --- $5000 est. for the most basic system.
I'm new to this subject but it seems as though the manufacturers could make this easier and a lot less costly.
Perhaps some of you avionics guys can chime in.
Here is the AvWeb piece that debunks the $1600 ADS-B Out price.
http://www.avweb.com/blogs/insider/Is-ADS-B-About-to-Break-Loose-223555-1.html
In calling around to L3, Garmin and Aircraft Spruce it became obvious that the people on the phones didn't know much about the subject.
When you start to read about this topic, you will immediately run into the term "extended squitter". Here is the definition.
http://www.garmin.com/us/intheair/ads-b/squit/
Where to put the antennas? The small "L" band antenna (4 inches long) goes on the bottom of the plane, at least 20 inches away from the current transponder antenna but not more than 132 inches away so the ADS-B and synchronize code and elevation with the current mode c or s transponder. It must have a 12 to 18 inch radius ground plane and not be obstructed by the landing gear. So I will need to install a ground plane back about the middle of the fuselage belly and make it probably by using foil tape under the fabric and cheat on the width some because the airplane is not 24 inches wide at that point. The GPS antenna goes on top also on a ground plane of similar size -- probably on the left fuel tank cover -- the Comm antenna is on the right side cover. In the case of the $4000 (box only) Garmin GDL 84, a small set of lights are all that have to be installed in the panel, but the L3 control head takes up a (non existing in my plane) spare instrument hole. The GDL 84 will Bluetooth to an iPad but it is line of sight. Garmin told me not to put the 7 inch square box under the panel or in the baggage area, possibly best on the floor close to the panel -- not a very neat solution.
Anyway, that is what I think I have learned -- please feel free to correct and add more info if you can. I would like to see in writing where I can install this stuff with an IA signoff if I eventually get my hands on the hardware & install guide.
As Mark Baker, head of AOPA, has said several times in speeches, "you don't have to have an avionics shop install the hardware, just install it and get an IA to sign it off".
Well, problem #1 -- all ADS-B Out manufacturers sell only through dealers (ie, Avionics shops). For certified aircraft, all of the big distribution houses; Aircraft Spruce, Saratoga, etc. will sell "install only" -- meaning that they ship your hardware to one of their approved avionics shops.
Problem #2, the manufacturers might or might not email an installation guide to be studied. L3 Lynx did email a guide, Garmin told me to go to a dealer. I called Aircraft Spruce who might have sent it to me IF I had been experimental, but not to an owner of a certified plane. Regardless, some of this documentation is seeping out into the Internet.
Mark Baker recently said that it was time to act now that ADS-B out is under $2000. But even he did not understand what the installations require because the L3 Lynx NGT-1000 he was touting that "only" costs $1600 (what Mark was fixated on) also requires a $1000 control head, about $600 in antennas and of course is sold only by avionics shops so add some more --- $5000 est. for the most basic system.
I'm new to this subject but it seems as though the manufacturers could make this easier and a lot less costly.
Perhaps some of you avionics guys can chime in.
Here is the AvWeb piece that debunks the $1600 ADS-B Out price.
http://www.avweb.com/blogs/insider/Is-ADS-B-About-to-Break-Loose-223555-1.html
In calling around to L3, Garmin and Aircraft Spruce it became obvious that the people on the phones didn't know much about the subject.
When you start to read about this topic, you will immediately run into the term "extended squitter". Here is the definition.
http://www.garmin.com/us/intheair/ads-b/squit/
Where to put the antennas? The small "L" band antenna (4 inches long) goes on the bottom of the plane, at least 20 inches away from the current transponder antenna but not more than 132 inches away so the ADS-B and synchronize code and elevation with the current mode c or s transponder. It must have a 12 to 18 inch radius ground plane and not be obstructed by the landing gear. So I will need to install a ground plane back about the middle of the fuselage belly and make it probably by using foil tape under the fabric and cheat on the width some because the airplane is not 24 inches wide at that point. The GPS antenna goes on top also on a ground plane of similar size -- probably on the left fuel tank cover -- the Comm antenna is on the right side cover. In the case of the $4000 (box only) Garmin GDL 84, a small set of lights are all that have to be installed in the panel, but the L3 control head takes up a (non existing in my plane) spare instrument hole. The GDL 84 will Bluetooth to an iPad but it is line of sight. Garmin told me not to put the 7 inch square box under the panel or in the baggage area, possibly best on the floor close to the panel -- not a very neat solution.
Anyway, that is what I think I have learned -- please feel free to correct and add more info if you can. I would like to see in writing where I can install this stuff with an IA signoff if I eventually get my hands on the hardware & install guide.