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old

English translation: vde. below


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GLOSSARY ENTRY (DERIVED FROM QUESTION BELOW)
English term or phrase:old
English translation:vde. below
Entered by: Goldcoaster
Options:
- Contribute to this entry
- Include in personal glossary

10:09 Sep 3, 2009
    The asker opted for community grading. The question was closed on 2009-09-07 00:54:06 based on peer agreement (or, if there were too few peer comments, asker preference.)


English to English translations [Non-PRO]
Tech/Engineering - Engineering (general)
English term or phrase: old
The transponder register data may be up to 1 aerial scan old since the event may occur just after the illumination of the aircraft.


What does this "old" mean?

Please help.

Thank you.
Sue-my
Local time: 04:58
vde. below
Explanation:
the data transmitted is based on the last and previous scan of the aircraft, i.e. as "old" as the transmission time for such data

--------------------------------------------------
Note added at 3 days20 hrs (2009-09-07 07:03:13 GMT) Post-grading
--------------------------------------------------

Thanks, Sue-my
Selected response from:

Goldcoaster
Switzerland
Local time: 21:58
Grading comment
Thank you very much for your kind answer!
4 KudoZ points were awarded for this answer



Summary of answers provided
3 +5vde. below
Goldcoaster
4out of date
Andycarruk


  

Answers


11 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
out of date


Explanation:
The implication from the word "illuminated" is that the transponder is responding either to a radar "paint" or explicity transmitted request by chirping it's identity. Depending on the transponder that may include absolute height, course and speed information.

If the unit is responding to an outside event then the delay is the sum of the outbound propagation delay, reception and processing time on board the aircraft, propagation delay back to the original source, reception and processing time at the originator and display latency. In cases where the ground-bound radar array lacks accuracy the chirped response of height, course and speed information can be presented as fact to an air traffic controller despite the fact that the aerial transponder is quizzed infrequently and may never be quizzed even a second time. As an aircraft transits a control area this displayed data may rapidly become out of date yet never be corrected on the hndler's display. In older ATC systems the air traffic controller may have no way of knowing if the displayed data is based on recently acquired radar ranging data or out-of-date transponder acquired data.

Andycarruk
Local time: 20:58
Native speaker of: Native in EnglishEnglish
Notes to answerer
Asker: I am sorry that I did not select your anwer although your answer is really understandable. I think I made a mistake.

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22 mins   confidence: Answerer confidence 3/5Answerer confidence 3/5 peer agreement (net): +5
vde. below


Explanation:
the data transmitted is based on the last and previous scan of the aircraft, i.e. as "old" as the transmission time for such data

--------------------------------------------------
Note added at 3 days20 hrs (2009-09-07 07:03:13 GMT) Post-grading
--------------------------------------------------

Thanks, Sue-my

Goldcoaster
Switzerland
Local time: 21:58
Works in field
Native speaker of: Native in EnglishEnglish, Native in GermanGerman
Grading comment
Thank you very much for your kind answer!

Peer comments on this answer (and responses from the answerer)
agree  Jack Doughty
2 mins
  -> Thanks, Jack

agree  Yasutomo Kanazawa
16 mins
  -> Arigato, Yasutomo

agree  Phong Le
19 mins
  -> Thanks, Phong Le

agree  Liam Hamilton
22 hrs
  -> Thanks, Liam

agree  · george ·
1 day21 hrs
  -> Thanks, solarstone
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Changes made by editors
Sep 7, 2009 - Changes made by Goldcoaster:
Edited KOG entry's old entry - "old" => "vde. below"


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