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Re: Airline Carryon



To all,
1. A flight computer should not malfunction from interference on a VOR 
channel.
2. No one should have entertainment equipment on during take off or landing.
3. Aircraft antennas should be located in RF secure ares of the plane and 
not near the passenger cabin. Cables running in the cabin should be shielded 
in solid tubes or use fibre optics.
4. FAA personel should have a extensive background in R.F. and Avionics if 
they are in an inspection position of Avonics equipment.
5. If the FM radio is properly shielded, and properly certified it should 
not cause interference.
6.Which side the L.O. is on is realy no part of my original discussion.
7. This only happens when computer code is not debugged, FM radios were not 
certified, personel are ignorant,  passengers do not follow the flight 
rules, and flight attendents do not enforce the rules. Where is the L.O.in 
this?

Art, KC6UQH
----- Original Message ----- 
From: "David P. Goncalves" <dpg@coe.neu.edu>
To: <dpg@coe.neu.edu>
Cc: <amsat-bb@amsat.org>
Sent: Thursday, July 07, 2005 3:56 PM
Subject: RE: [amsat-bb] Airline Carryon


>> > The aircraft is aluminum, it is large and the receiver
>> > antenna is not in side the cabin. Most L.O. are on the low side causing
>> > interference to the marker beacon receiver 75 MHz.
>
>> Hmm, most radios sold here use high side injection (or at least used to).
>> As a kid, I used to play around with listening to the LO of another FM
>> receiver (tuned to the bottom half of the band, of course!).
>
> Well, that makes sense. Toilets in the Southern Hemisphere flush in the
> opposite direction of those in the Northern Hemisphere. So, S. Hemi. LOs
> inject the opposite side than the N. Hemi. ones.
>
> I've also got a good theory about why hot countries are less stable than
> cooler ones - and how to fix it with air conditioners.
>
> Dave Goncalves
> W1EUJ
> ----
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----
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