Abduhl.. 
 
 > AA: Now I just want to verify some informations that was told to 
 > AA: me by somebody who works as an Aircraft Mechanic .. 
 > AA:  
 > AA: I asked him about the danger of the use of Mobile Phones aboard 
 > AA: commercial aircrafts and he told me that .. the fuel injection 
 > AA: system 
 > AA: to the jet engines recieves the commands from the cockpit via 
 > AA: electronic signal with certain frequency .. and the mobile can 
 > AA: intrrupt this electronic signal and therefore upset/changes the 
 > AA: magnitude 
 > AA: of the command-frequency and may cause the engine to shutdown 
 > AA: .. 
 > AA:  
 > AA: I thought this is not accurate or true in any case .. 
 
I spent a long time around avionics and am in the telecommunications 
engineering game, plus have been in instrumentation heavily as well. 
 
Don't know the specific answer, but my hunch is that there is a far greater 
chance of having problems result from contamination of nav-aide signals than 
the specific problem you pose.  I've never seen the systems, but the chance 
that they are carried in other than full shielded cables, even if they are RF 
based, I would think, is zero to none. 
 
Mike @ 117/3001 
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