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A Question For Us Radar Controllers

ivanvedder
post Feb 21 2007, 09:05 AM
Post #1





Group: Student Forum Pilot
Posts: 20
Joined: 15-December 06
Member No.: 337



Hy, this is an italian Atcer, I have a question for all the radar controllers here:
In 2001 (in case of a plane with transponder off) did you have to select a different setting on your radar to see his primary response?
this is what the 9/11 commission says:

"On 9/11, the terrorists turned off the transponders on three of the four hijacked aircraft. With its transponder off, it is possible, though more difficult, to track an aircraft by its primary radar returns. But unlike transponder data, primary radar returns do not show the aircraft's identity and altitude. Controllers at centers rely so heavily on transponder signals that they usually do not display primary radar returns on their radar scopes. But they can change the configuration of their scopes so they can see primary radar returns. They did this on 9/11 when the transponder signals for three of the aircraft disappeared."

Is there any guy (especially from Boston or New York, Cleveland, and Indianapolis) who can answer?
In the italian sistem if an aircraft loses the transponder signal (or if we have an a/c without it) we see directly (with no changings of configurations) a specific simbol (+) with the speed indication.
thanks for your help
ciao!

This post has been edited by ivanvedder: Feb 21 2007, 09:22 AM
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Posts in this topic
- ivanvedder   A Question For Us Radar Controllers   Feb 21 2007, 09:05 AM
- - johndoeX   Hi Ivan, welcome to the forums.. good to have you...   Feb 21 2007, 09:13 AM
- - ivanvedder   thanks Rob! (for welcome & help)   Feb 21 2007, 09:21 AM
- - andrewkornkven   QUOTE (ivanvedder @ Feb 21 2007, 01:05 PM)Hy,...   Feb 21 2007, 09:42 AM
- - ivanvedder   "but the point is it is a simple matter to qu...   Feb 21 2007, 12:37 PM
- - Robin Hordon   Ivanveder, Hello, my name is Robin Hordon and I...   Feb 21 2007, 02:58 PM
- - ivanvedder   Hi Robin, I've read your posts all around the ...   Feb 22 2007, 05:04 AM
- - amazed!   Some good conversation here, from the perspective ...   Feb 24 2007, 06:59 PM
- - Robin Hordon   Amazed... The NORAD "injects" never mak...   Mar 3 2007, 03:57 AM
- - Robin Hordon   Terrorcell asked some questions about radar system...   Mar 4 2007, 03:39 AM
- - ivanvedder   Hi Robin some more questions about Us procedures: ...   Mar 4 2007, 12:11 PM
- - pinnacle   I have been trying to get radar records of Washing...   Mar 5 2007, 02:27 PM
- - Robin Hordon   Ivanvedder, To put the JCS document in proper per...   Mar 7 2007, 12:58 AM
- - Robin Hordon   Pinnacle... Lets try to get through your excellen...   Mar 7 2007, 03:04 AM
- - Ashoka   QUOTE (Robin Hordon @ Mar 7 2007, 02:04 AM)Th...   Mar 7 2007, 08:38 AM
- - pinnacle   I am not sure what altitude the White Jet was flyi...   Mar 7 2007, 01:17 PM
- - Robin Hordon   Ashoka, Thank you so much...here are some "t...   Mar 7 2007, 03:15 PM
- - ivanvedder   How did you get these PICS anyway? here they are:...   Mar 7 2007, 04:06 PM
- - Robin Hordon   PINNACLE... Regarding the white airplanes...I thi...   Mar 7 2007, 08:22 PM
- - pinnacle   According to the White House news correspondent wh...   Mar 8 2007, 02:10 PM
- - amazed!   Robin Thanks so much for answering the questions....   Mar 9 2007, 11:54 PM
- - Robin Hordon   Amazed... Yes, its the C-130 from Andrews...if I ...   Mar 10 2007, 12:14 AM
- - Robin Hordon   To All.. Thanks for getting me to the entire set ...   Mar 10 2007, 01:11 AM
- - amazed!   Robin So for this layman, what you are saying is ...   Mar 10 2007, 10:30 PM
- - Robin Hordon   Amazed, YES...it appears that the radar displays ...   Mar 11 2007, 01:01 AM
- - Westgate   Hi Robin - I am Radar illiterate I am afraid, so p...   Mar 12 2007, 04:41 AM
- - Robin Hordon   Westgate, I'm sad to say it but I think that ...   Mar 12 2007, 09:02 AM
- - painter   QUOTE (Robin Hordon @ Mar 12 2007, 05:02 AM)...   Mar 12 2007, 11:45 AM
- - pinnacle   The fact of routine interception of "unknown ...   Mar 12 2007, 01:08 PM
- - Westgate   Robin - Thank you so very much for your detailed r...   Mar 12 2007, 02:50 PM
- - painter   QUOTE (Westgate @ Mar 12 2007, 10:50 AM)<s...   Mar 12 2007, 06:10 PM
- - amazed!   Robin Regarding the use of injects, I understand ...   Mar 12 2007, 11:06 PM
- - pinnacle   FAA Order 7610.4 "Special Military Operatio...   Mar 13 2007, 12:18 PM
- - Robin Hordon   My computer has "been compromised"...so ...   Mar 14 2007, 07:43 PM
- - Westgate   Robin - As always, thanks so much for such detaile...   Mar 15 2007, 11:58 AM
- - andrewkornkven   QUOTE (Robin Hordon @ Mar 7 2007, 07:15 PM)Fo...   Mar 16 2007, 12:09 AM
- - Robin Hordon   Andrew, Thank you for your reply and I am MORE TH...   Mar 16 2007, 11:31 AM
- - pinnacle   US Customs radar center covered internal airspace...   Mar 19 2007, 01:27 PM
- - Robin Hordon   Westgate, Sorry for the delay...my first answer t...   Mar 25 2007, 06:27 PM
- - Robin Hordon   Pinnacle, Rearding your information about all the...   Mar 26 2007, 03:08 PM
- - Westgate   Hi Robin - I am just back from a few days visiting...   Mar 31 2007, 04:53 AM
- - Robin Hordon   Westgate, Thank you for reading them and showing ...   Mar 31 2007, 03:44 PM
- - amazed!   Well put Robin. Yes, it's amazing how skillfu...   Apr 1 2007, 02:55 PM
- - pinnacle   Is there any information available on how long rad...   Jun 19 2007, 04:01 PM
- - Robin Hordon   Pinnacle, I feel that my following information is...   Jun 19 2007, 05:24 PM
- - mftorso   I'm a latecomer to this thread but want to tha...   Jun 24 2007, 02:03 AM


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