PPRuNe Forums - AUTO position on transponder control panel

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TOPBUG

1st May 2005 05:43

AUTO position on transponder control panel

Can anyone enlighten me on this? I cant find any info anywhere.

dv8	1st May 2005 09:10

It automatically changes from TARA to TA only when below +/- 1000 agl

t6 sparky

1st May 2005 09:29

What does "plus or minus 1000 above ground level" mean?

airbusbatics

1st May 2005 11:13

On the A320, the transponder mode selector has 3 positions, being:

STBY : Both ATC transponders are electrically supplied but do not operate.

ON : Selected transponder operates.

AUTO : In flight : Selected transponder operates.
AUTO : On ground : Selected transponder operates only in mode S (Selective aircraft interrogation mode).

Holpe this helps...

Spitoon

1st May 2005 19:48

Quote:

What does "plus or minus 1000 above ground level" mean?

Well I guess it covers all eventualities!

dv8	6th May 2005 07:37

Err
Approximately 1000 feet above the ground

t6 sparky

7th May 2005 09:34

What does "plus or minus 1000 above ground level" mean?

Or minus 1000' below ground level?

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