 |
Matronics Email Lists
Web Forum Interface to the Matronics Email Lists
|
| View previous topic :: View next topic |
| Author |
Message |
merlewagner2
Joined: 01 Jun 2016
Posts: 18
Location: Spring Hill, FL
|
 Posted: Sat Jul 29, 2023 6:27 am Post subject: ADS-B issue |
 |
|
Not sure if this is relevant to this forum but...
After going thru major fixes on my Tailwind I had a couple of test flights to check things out.
I took a look at Flightaware.com to see the flights and they came up but the airspeeds were very erratic. Positioning/tracking looked great, just airspeed was crazy.
I decided to pull an ADS-B report from the FAA to see what that stated. They came back with no report found on either flight. They suggested I send in the GPS/Transponder for repair.
Any thoughts on what would cause the FAA to throw out a flight, ie: not create a report. I don't have the detail on what info is broadcast on ADS-B so maybe someone might know of a document that explains the process.
Merle
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
_________________
KC1DNJ
General Radiotelephone
Commercial SEL
A & P
Building scale P51, rebuilding Tailwind W10 |
|
| Back to top |
|
 |
Eric Page
Joined: 15 Feb 2017
Posts: 245
|
| Posted: Sat Jul 29, 2023 9:15 am Post subject: Re: ADS-B issue |
|
|
Do you have a GPS-derived ground speed readout on the panel? Is it erratic in flight? If so, then it's probably a GPS problem and the transponder is just sending out the bad data that it's receiving.
If that's not it, then you might try a couple of things. First, make another flight, being sure to climb to at least a few thousand feet, fly a few straight legs of several minutes each, and talk to ATC to confirm that they can see you and are receiving all of the ADS-B data that they normally expect. If ATC reports a problem, or you still can't get an ADS-B report from the FAA, then go to the nearest avionics repair station and get the transponder tested.
Only if those two things show problems would I remove the transponder and send it for an expensive repair.
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
David Lamphere
Joined: 20 Oct 2019
Posts: 19
Location: Culpeper, Virginia
|
| Posted: Sun Jul 30, 2023 2:14 am Post subject: ADS-B issue |
|
|
It’s been a while, but I remember that the key for my ADS-B report was using flight following. Getting ATC involved. Did you make sure your reg number was set (instead of anon) ?
Which ADS-B unit do you have?
Dave
Wittman Buttercup N365ED
On Jul 29, 2023, at 10:28 AM, merlewagner2 <wagnermerle(at)gmail.com> wrote:
Not sure if this is relevant to this forum but...
After going thru major fixes on my Tailwind I had a couple of test flights to check things out.
I took a look at Flightaware.com to see the flights and they came up but the airspeeds were very erratic. Positioning/tracking looked great, just airspeed was crazy.
I decided to pull an ADS-B report from the FAA to see what that stated. They came back with no report found on either flight. They suggested I send in the GPS/Transponder for repair.
Any thoughts on what would cause the FAA to throw out a flight, ie: not create a report. I don't have the detail on what info is broadcast on ADS-B so maybe someone might know of a document that explains the process.
Merle
--------
KC1DNJ
General Radiotelephone
Commercial SEL
A & P
Building scale P51, rebuilding Tailwind W10
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=511166#511166
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
|
|
| Back to top |
|
|
merlewagner2
Joined: 01 Jun 2016
Posts: 18
Location: Spring Hill, FL
|
| Posted: Mon Jul 31, 2023 3:47 am Post subject: Re: ADS-B issue |
|
|
"Its been a while, but I remember that the key for my ADS-B report was using flight
following. Getting ATC involved. Did you make sure your reg number was set
(instead of anon) ?
Which ADS-B unit do you have?"
Thanks for the replies. The unit was working fine but then I relocated the transponder and made an extension cable to fit. I suspect this might be the culprit. Just strange that Flightaware (uses ADS-B data) sees me but the FAA does not. I will have to go back thru my flight data to verify ground speed but suspect data from GPS to transponder.
I have an ADS-B test set so I will check output. My transponder is a Trig TT22 and the GPS is a Safe-Fly 2020 from GRT.
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
|
_________________
KC1DNJ
General Radiotelephone
Commercial SEL
A & P
Building scale P51, rebuilding Tailwind W10 |
|
| Back to top |
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
|
Powered by phpBB © 2001, 2005 phpBB Group
|
Get Email Distribution Too!
FAQ
Search
Memberlist
Usergroups
Register
Profile
Log in to check your private messages
Log in
