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TAS "A" Output
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ddgates View Drop Down
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    Posted: 19 Jul 2017 at 7:04pm
Operating on indications that the "A" upgrade is in process and going to happen.


Have questions about display formatting.

-Is a rewire to the IFD(s) going to be required for display there?  What is the display going to look like there?  Direction vectors and N-numbers like ADS-B?
-TAS output is currently displayed on my Aspen MFD.  Will that wiring or format change?  RS-232 or ARINC?

This isn't a casual inquiry.  Plane will be in shop with empennage open to do this.  Want to get it right the first time.

Please advise, and thank you.




Edited by ddgates - 19 Jul 2017 at 8:47pm
David Gates
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In general terms:

-         Any display that works with TAS or TAS-A now should work with TAS-A after the ADS-B updates.

·         The ARINC-429 interface currently being used (ARINC-735 TCAS format) will continue to work, but will not show additional ADS-B data (ADS-B targets will be displayed, but they will look the same).

·         The current RS-232 interface will also remain unchanged.  ADS-B targets will be displayed, but they will look the same.

·         The RS-232 interface will be updated so that display manufacturers can update their software to request additional ADS-B data.  In this case direction, flight ID and on-ground status for ADS-B targets will be provided on the interface.

·         There should be no need to rewire connections to the displays since the current interfaces are remaining unchanged.

·         A connection to a compliant GPS source will need to be provided.
Simpson Bennett
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ddgates View Drop Down
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Points: 1100 		Post Options Post Options   Thanks (0) Thanks(0)   Quote ddgates Quote  Post ReplyReply Direct Link To This Post Posted: 20 Jul 2017 at 10:05am
Originally posted by AviSimpson AviSimpson wrote:

In general terms:

-         Any display that works with TAS or TAS-A now should work with TAS-A after the ADS-B updates.


·         The RS-232 interface will be updated so that display manufacturers can update their software to request additional ADS-B data.  In this case direction, flight ID and on-ground status for ADS-B targets will be provided on the interface.


Thanks, Simpson.   

Does 10.2 have the display software enablement to do that, or is that going to require another software update?
David Gates
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The current RS-232 interface will also remain unchanged.  ADS-B targets will be displayed, but they will look the same.   
.  Skytrax100 Traffic already presently displays via RS232 --> 540 with full UAT target/Speed Vector Icons   
.  TAS 605 targets currently display via RS232, without Velocity Vectors, but With altitude trends.

The RS-232 interface will be updated so that display manufacturers can update their software to request additional ADS-B data.  In this case direction, flight ID and on-ground status for ADS-B targets will be provided on the interface.   

.  This sounds like great news, assuming the new RS232 interface will provide the same format as Aspen & Lynx Traffic/Wx RS232 format:  115,200 baud & GDL90 Format.  This is what we need from the Avidyne Software update.

.  When the TAS "A" software unlock becomes available, Will there be an Avidyne STC'd Unlock ($$) for Avidyne --> Aspen STC Unlock to display TAS"A" Traffic and Skytrax100 Wx via RS232 to Aspens?

Lets hope Avidyne comes through with improved cooperative efforts to display on Aspens, etc.

Tom W.

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