REFLECTOR: ADS-B Categories

[John Dibble]

Thanks Clayton.  That's exactly what I was looking for.  Looks like I'm 
not EHS.

John

On 3/29/2014 4:51 PM, Clayton Chase wrote:
> It means enhanced surveillance.  I don't know much about it.
>
>
>     Eurocontrol Mode S Program
>
> Beginning in the mid-1990s, the aircraft surveillance system used in 
> core European airspace was reaching capacity. To allow for continued 
> growth, the Mode S program was launched as a replacement for SSR using 
> Mode A/C transponders. The program became fully operational in 2009. 
> There are currently two levels of SSR Mode S, Mode S Elementary 
> Surveillance (ELS), and Mode S Enhanced Surveillance (EHS).
>
>
>       Mode S ELS
>
> Mode S ELS is currently required for IFR flights in the airspace over 
> much of Europe, including: Belgium, France, Germany, Luxembourg, the 
> Netherlands, Switzerland, Italy, the Czech Republic, Hungary and Greece.
>
> One of the key benefits of Mode S ELS is the assignment to each 
> aircraft of a unique ICAO 24-bit address by the state of registry. 
> Mode S ELS uses this unique 24-bit aircraft address for selective 
> interrogation and to acquire down linked aircraft identification, 
> known as Flight ID or aircraft call sign. The technology also allows 
> ATC equipment to acquire altitude in 25 foot increments.
>
>
>       Mode S EHS
>
> Aircraft with a maximum takeoff weight greater than 12,566 lbs (5,700 
> kg) or a maximum cruise true airspeed greater than 250 knots must be 
> equipped with Mode S EHS to operate in the United Kingdom, Germany and 
> France.
>
> EHS is intended to provide additional information about an aircraft's 
> state and intent for use by air traffic controllers. It includes the 
> elements of information (called Downlink Aircraft Parameters -- DAPs). 
> The DAPs include:
>
>   * Magnetic heading
>   * Indicated airspeed / Mach Number
>   * Vertical Rate
>   * Roll Angle
>   * Track Angle Rate
>   * True Track Angle
>   * Ground Speed
>   * Selected Altitude
>
> This information is designed to offer improved situational awareness 
> for air traffic control while reducing radio congestion. Access by 
> controllers to aircraft intent DAPs allows cross-checking of 
> climb/descent instructions and help the early identification of 
> potential loss of separation incidents
>
>
> On Sat, Mar 29, 2014 at 1:40 PM, John Dibble <aminetech at bluefrog.com 
> <mailto:aminetech at bluefrog.com>> wrote:
>
>     Anyone know what "ENH Surv"  means in the attached pic?  I'm
>     updating my profile on DUATS.
>
>     Thanks,
>
>     John
>
>
>     ---
>     This email is free from viruses and malware because avast!
>     Antivirus protection is active.
>     http://www.avast.com
>
>     _______________________________________________
>     To change your email address, visit
>     http://www.tvbf.org/mailman/listinfo/reflector
>
>     Visit the gallery! www.tvbf.org/gallery <http://www.tvbf.org/gallery>
>     user:pw = tvbf:jamaicangoose
>     Check new archives: www.tvbf.org/pipermail
>     <http://www.tvbf.org/pipermail>
>     Check old archives:
>     http://www.tvbf.org/archives/velocity/maillist.html
>
>
>
>
> _______________________________________________
> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>
> Visit the gallery!  www.tvbf.org/gallery
> user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail
> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html



---
This email is free from viruses and malware because avast! Antivirus protection is active.
http://www.avast.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.tvbf.org/mailman/private/reflector/attachments/20140330/4e0891e4/attachment-0001.html>