XCSoar display flarm traffic in two ways: flarm radar (similar to the butterfy 
display) and flarm traffic in the moving map. Mode C/S should only be displayed 
in the flarm radar the same way as you described, but not in the moving map. 

Ramy





>________________________________
> From: David Anisman <david.anis...@gmail.com>
>To: Tobias Bieniek <tobias.bien...@gmx.de> 
>Cc: XCSoar List <xcsoar-user@lists.sourceforge.net>; Russell Thorne 
><thor...@xtra.co.nz> 
>Sent: Thursday, August 30, 2012 12:23 PM
>Subject: Re: [Xcsoar-user] PowerFlarm and XCSoar
> 
>
>Good point. I realized the display issue as soon as I hit the Send button. 
>Will need to give it some thought. 
>
>The current PF display manual describes the display of Mode S/C targets as 
>follows:
>
>"Ranging and altitude separation of aircraft with transponders (Mode-S/C) are 
>shown as a ring around the current position. The current altitude separation 
>is depicted on the right side of the ring."
>
>The radius of the ring changes with the estimated range (and zoom setting).
>
>Here is the link to the display doc as ref: 
>http://powerflarm.us/wp-content/uploads/2012/04/Remote_Display_EN_US.pdf
>
>It is a question whether it would be a good idea to overlay this information 
>the same way on the XCSoar moving map.....
>
>David
>
>
>
>On Thu, Aug 30, 2012 at 12:03 PM, Tobias Bieniek <tobias.bien...@gmx.de> wrote:
>
>Mode-S/C is alerted via the *lack* of one directional distance dimension 
>(RelativeEast) with just (RelativeNorth) sent. This is the main signal that 
>this is a Mode S/C target. It is only a PFLAA sentence signal. Not sure why 
>XCSoar does not show this particular case. It likely could.
>>
>>
>>Simple answer. XCSoar isn't aware of this protocol extension yet. And how 
>>would you want to display traffic if you dont know where it is?! I'm open to 
>>suggestions :)
>>
>>
>>Turbo 
>
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