Newsgroups: rec.aviation.student
Subject: Re: The level out and the flare
From: jbolinger@lintek.com (J L Bolinger)
Organization: AeroFlex Lintek
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In article <19980929115217.07460.00003684@ng106.aol.com>, hlaviation@aol.com 
says...
>
>
>> An AM/FM radio can (and will)
>> reak havoc with your navcom.  You may not be aware of it until you find 
>>yourself lost.
>
>Cant count how many planes I've flown and worked on with a car stereo mounted
>in the panel. If I'm VFR why would I get lost, If I'm IFR I'm not listening to

Don't you use VORs or NDBs for navigation?

>music anyway.  Usually though I listen to the airpane rather than the stereo
>but if the plane is set up for it I'll pipe the music to the passengers head
>sets.  Seems to have the effect of reducing motion sickness on bumpy flights.


Mounting something in a plane is different than in a car.  Anything you
do has to be blessed by the FAA which, I beleive, would include making
sure that it did not interfere with the other more essential equipment.

The VORs are between 108 and 118 MHz.  FM broadcast is from 88 to 108 MHz.
Most _portable_ radios (and that is what the previous posting mentioned) are 
not very well built as far as being 'clean' (not radiating unwanted signals).
Remember _any_ electronic device _will_ radiate unwanted signals.  The
question is how much.  If you are 30 miles from a VOR station it won't take
much to cause a problem from the back seat. (I've heard storys about this.)

Likewise, NDBs are between 190 and 500 KHz.  AM broadcast is between 530 KHz
and 1600 MHz.  A typical AM receiver has an intermediate frequency of
455 KHz, right among the NDBs!

