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Trig TT21 + TN72 TABS ADS-B Out Install working great....



 
 
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Old February 12th 18, 05:43 PM posted to rec.aviation.soaring
Darryl Ramm
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Default Trig TT21 + TN72 TABS ADS-B Out Install working great....

On Monday, February 12, 2018 at 7:45:25 AM UTC-8, wrote:
So to confirm what I think I understand: an Experimental airworthiness glider can fully satisfy the 2020 ADS-B mandate using the TT22 + TN72.

A Standard airworthiness glider must use the TT22 + TN70.

(The TN70 is about $1500 more than the TN72).

Is that correct?

Matt


Yes.

But again, for most gliders they likely don't need to meet the 2020 Mandate and will get all the ADS-B Out benefits they need from just doing a TABS install.

Just transmitting SIL=3 aka a 2020 Compliant ADS-B Out install makes it more serious than doing a TABS (SIL=1 instal). Even if not required for an install in an experimental aircraft I would still hope that any 2020 Compliant install is checked by the installer and/or owner by doing a FAA validation test flight (details all over the web) as usually done for a type certified installation. Many mistakes with ADS-B Out are simple software settings issues and it would be better to know it's apparently working OK and not have to have an FSDO inspector track the owner down... FAA folks are having to waste their time doing that now because there are many ADS-B Out installations with problems, and yes they are paying lots of attention to new ADS-B Out installs that show up in their surveillance system. And let me preemptively guess that stuff like TT22 not set to use squat switch emulation will be a common problem for 2020 Complaint installs of a TT22+TN72 in experimental gliders. That is discussed in the documentation, but it's silly stuff like that causing issues in GA ADS-B land.



 




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