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Why minidisc use is prohibitied during take off/landing?

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riotshield

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My guess is that any sort of electromagnetic interference (created by just about any electronic device) can potentially interfere with radio communications (among other things, instrumentation, etc). Although why they would allow the use of these devices in flight and just not during takeoff/landing is beyond me.

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My guess is that any sort of electromagnetic interference (created by just about any electronic device) can potentially interfere with radio communications (among other things, instrumentation, etc). Although why they would allow the use of these devices in flight and just not during takeoff/landing is beyond me.

I think taking off and landing is the most critical moment when it comes to flying so this is not taking forgranted in anyways. That is based on my assumption again.

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I don't think there's any proof of interference its a "just in case" scenario.

i agree with that. it would be nice if we could find some scientific proof that indeed it doesn't really matter

or maybe manufacture a "flight operation enabled" sticker.

taking off and landing are so much more beautiful when u are listening to music

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My guess is that they make you turn off all electronic devices because they don't want to deal with exceptions--everyone turns off everything. What they seem most worried about is cell phones and GPS signals that can interfere with the plane's guidance system.

Google found this subcommittee hearing on the subject--you have to use the cached copy because the original has moved.

http://209.85.165.104/search?q=cache:8Jaks...-20-00memo.html

So they do believe that portable electronics affect navigational systems.

Here's the official regulation, from this link:

http://a257.g.akamaitech.net/7/257/2422/14...4cfr121.306.htm

TITLE 14--AERONAUTICSAND SPACE

CHAPTER I--FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION

(CONTINUED)

PART 121--OPERATING REQUIREMENTS: DOMESTIC, FLAG, AND SUPPLEMENTAL

OPERATIONS--Table of Contents

Subpart K--Instrument and Equipment Requirements

Sec. 121.306 Portable electronic devices.

(a) Except as provided in paragraph b: of this section, no person

may operate, nor may any operator or pilot in command of an aircraft

allow the operation of, any portable electronic device on any U.S.-

registered civil aircraft operating under this part.

b: Paragraph (a) of this section does not apply to--

(1) Portable voice recorders;

(2) Hearing aids;

(3) Heart pacemakers;

(4) Electric shavers; or

(5) Any other portable electronic device that the part 119

certificate holder has determined will not cause interference with the

navigation or communication system of the aircraft on which it is to be

used.

© The determination required by paragraph (b5) of this section

shall be made by that part 119 certificate holder

operating the particular device to be used.

[Doc. No. FAA-1998-4954, 64 FR 1080, Jan. 7, 1999]

But hey--is a minidisc a portable voice recorder?

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I remember seeing this show before where they tested using electronic devices of all sorts and nothing happened. I think it was because the frequencies used in that plane was 2.4ghz so they were not affected. Also the cables were shielded. Do note that this was a modern business jet they tested in. But I guess you really wouldn't want to risk it would you?

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