Comms
Thread Starter

Joined: Jan 2004
Posts: 181
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From: Sky
Comms Question
Feedback question.
SSR transponder on, ATSU message "verify your flight level" would be made to:
(a) check your altimeter
or
(b) check and confirm the accuracy of the Mode C level info displayed to the controller.
I disagree with the answer I've been given.
Anyone care to give a definitive answer ?
Thanks!
VC10 Rib22 ( who looks forward with anticipation to Saturday nights not spent studying)
SSR transponder on, ATSU message "verify your flight level" would be made to:
(a) check your altimeter
or
(b) check and confirm the accuracy of the Mode C level info displayed to the controller.
I disagree with the answer I've been given.
Anyone care to give a definitive answer ?
Thanks!
VC10 Rib22 ( who looks forward with anticipation to Saturday nights not spent studying)
Last edited by VC10 Rib22; 18th September 2005 at 11:01.
Joined: Jun 2005
Posts: 19
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From: Stratford Upon Avon
I've seen the question before and, I believe, the answer they're after is 'b'. If its any consolation I think the wording is more definite in the question bank used by the CAA.
Something like: What is the purpose of a request from an ATSU to 'verify your FL'?
a) Check the accuracy of the Mode C readout displayed to the Controller,
b) Confirm accuracy of altimeter.
If you think that this question is ambiguous then you'll enjoy the HP and L exam...
Good Luck
Something like: What is the purpose of a request from an ATSU to 'verify your FL'?
a) Check the accuracy of the Mode C readout displayed to the Controller,
b) Confirm accuracy of altimeter.
If you think that this question is ambiguous then you'll enjoy the HP and L exam...
Good Luck
Thread Starter

Joined: Jan 2004
Posts: 181
Likes: 3
From: Sky
apoball,
I agree with you, but my feedback gives the other answer. As you said, HP and L gives similar dilemmas, but if I could repeat what I got in HP and L, I'd run naked around my flight school.
Cheers,
VC10 Rib22
I agree with you, but my feedback gives the other answer. As you said, HP and L gives similar dilemmas, but if I could repeat what I got in HP and L, I'd run naked around my flight school.
Cheers,
VC10 Rib22
Joined: Nov 2003
Posts: 2,475
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From: Planet Tharg
Check you have the correct QNH/QNE dialled into the altimeter, the level is being maintained correctly and make sure you're squawking mode C.
Sounds like "both", but primary would be to check you're at the correct level/altitude.
Sounds like "both", but primary would be to check you're at the correct level/altitude.

Joined: May 1999
Aviation Qualifications: ATP+Mil
Posts: 27,395
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From: Quite near 'An aerodrome somewhere in England'
From CAP413:
"Check altimeter setting and confirm (level)": Check pressure setting and confirm your level.
"Confirm (level)": Check and confirm your level is 200 feet or less from that reported by the controller.*
*Used to verify the accuracy of the Mode C derived level information displayed to the controller.
'Verify' is not an approved term. Sounds like a poor question to me!
"Check altimeter setting and confirm (level)": Check pressure setting and confirm your level.
"Confirm (level)": Check and confirm your level is 200 feet or less from that reported by the controller.*
*Used to verify the accuracy of the Mode C derived level information displayed to the controller.
'Verify' is not an approved term. Sounds like a poor question to me!
Joined: Aug 2002
Posts: 2,524
Likes: 1
From: United Kingdom
The JAA Comms exam does not examine UK RTF phraseology and so CAP413 is not relevant. However, from ICAO Doc 9432 - Manual of Radiotelephony, para 6.5.1:
*VERIFY LEVEL - Check and confirm your level
* Used to verify the accuracy of the Mode C derived level information displayed to the controller.
The correct answer is clearly (b)
*VERIFY LEVEL - Check and confirm your level
* Used to verify the accuracy of the Mode C derived level information displayed to the controller.
The correct answer is clearly (b)
Thread Starter

Joined: Jan 2004
Posts: 181
Likes: 3
From: Sky
BillieBob,
I was under the impression that modern technology would enable the transponder to be both accurate and reliable, as opposed to good old human error (mis-setting of the altimeter), so it would be the human aspect under scrutiny. Perhaps I am giving transponders too much credit.
I was under the impression that modern technology would enable the transponder to be both accurate and reliable, as opposed to good old human error (mis-setting of the altimeter), so it would be the human aspect under scrutiny. Perhaps I am giving transponders too much credit.




