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Old 13th Apr 2010, 17:40
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fredgrav
 
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Post Optimum setting of Weather Radar's tilt
Hi guys,
just to operate the WX radar as optimal as possible, Airbus recommends the following (manual) tilt adjustments:

- Takeoff: 4° UP
- Climb: negative tilt to keep ground returns on top of ND
- Cruise: the following settings to keep ground returns on top of ND ...
  • Range 320: 1 DN
  • Range 160: 1.5 DN
  • Range 80: 3.5 DN
  • Range 40: 6 DN
- Descent:
  • Above FL150 - Every 10 000 ft: Adjust tilt upward to maintain ground returns on top of ND (~ +1°/10.000 ft)
  • Below FL150 - Every 5 000 ft: Adjust tilt upward to maintain ground returns on top of ND (~ +1°/5.000 ft)

- Approach: 4° UP

At that point, I was trying to figure out any WX's logic behind the auto-tilt function ... is there any pre-set schedule or formula used by WX to work the auto-setting out ?

What requirements apply in turning the GCS (Ground Clutter Suppress) ON ? As far as I know it has to be selected ON to avoid unwanted ground returns associated with high negative tilt angles ...

Thanks in advance,
fredgrav
Last edited by fredgrav; 13th Apr 2010 at 21:32.
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