It is prior for all the passenger to switch off their Mobile Phones.
even the passenger President. this rules gas it's own regulation that
has been made by the government ans there is also an explanation why
this rules has to be made and obey by all the Passengers on Plane.
Even on stand
by position without switch on the signal, Mobile Phone still
broadcasting periodic signal rapidly even in certain high. beside that
Mobile Phone still have a network connection with their closest BTS.
So, even Mobile
Phone in Offline mode, it's still make a network connection with
certain distance, and it is can disturb communication and navigation
system on Plane.
It is happen because Mobile Phone
design to send and receive signal. on FM radio for
example, Oscillator Frequency that radio has also could disturb VHF
signal Navigation that Plane Has.
The farther our
Mobile Phone distance with BTS in Land, the stronger signal emitted by
Mobile Phone to maximum, and make a greater disturb impact. this thing
could make communication between pilot and control tower disturb which
can make Pilot error on reading Instrumen panel and disaster happen.
Especially on
landing and take off, this is a critical fase where many accindent
happen on this fase, that is why it is normal when crew in cabin asking
all the passenger tu torn off all electronic devices during the
passengers on a Plane.
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