Thanks for the link to the previous thread, I totally missed that one in early December. Funny a newsgroup search didn't bring it up, I looked for "TN72".

I hope FAA clarifies the situation w/r/to certificated gliders. The regs are silent about TSO-199 TABS, but I would hope it would be installable somehow.

The numbering is confusing. See the quick links of this page for an overview of regs, TSOs, etc

https://www.faa.gov/nextgen/programs/adsb/

TSO-166b is 1090es
TSO-199 is TABS
TSO-154c is UAT

On Wednesday, January 4, 2017 at 11:42:35 PM UTC-6, Darryl Ramm wrote:
On Wednesday, January 4, 2017 at 5:15:53 PM UTC-8, Sarah wrote:
On Wednesday, January 4, 2017 at 10:50:13 AM UTC-6, Darryl Ramm wrote:
TSO-C166 *is* TABS.

Some of the rest of this stuff has been discussed on r.a.s. before.

What hasn't been discussed on ras before? It is January.

And the TN72 is new, $400 and TSO'd source for ADSB-out.
They were tricky, flipping the digits upside down.

TSO-C199 != TSO-C166

Oops my bad in flipping the 6 and 9. TSO-C166 is UAT, not relevant to TABS TSO-C199.

The TN72 has been discussed on r.a.s in detail before. See https://groups.google.com/forum/#!to...ng/Q8p-zVz7DL8. The actual availability and low price is great news.

It's confusing to say this is a "certified" device, that makes some people incorrectly think it's suitable for use for ADS-B Out to meet 2020 carriage mandates or can be installed in a certified glider today (hopefully that is coming... but there is currently no way to actually do that AFAIK... hopefully something he FAA and manufactures are working on creating an STC for and/or streamlining field approval for).

The price is great news, and anybody interested in ADS-B Out who has an experimental glider and a Trig TT-21 or TT-22 may want to get a TN72 installed before the flying season. better visibility to GA aircraft equipping with ADS-B In and longer-range (than PowerFLARM-PowerFLARM) visibility to other gliders with PowerFLARM.