From: kbarr@csn.net (Keith Barr)
Organization: SuperNet Inc. Denver Colorado (303) 296-8202
Date: 07 Sep 96 17:09:03
References: 1 2 3 4
Followups: 1 2 3
View raw article
or MIME structure
In article <airliners.1996.1750@ohare.Chicago.COM>,
Dave Benjamin <dbenj@slip.net> wrote:
>It seems incomprehensible that aircraft avionics that MUST frequently
>fly over high-powered radio transmitters could be so suceptible to stray
>onboard RF. My understanding is that the restrictions on in-flight use
>of electronic devices is based entirely on unsubstantiated anecdotal
>evidence.
Well, after reading about CD players being able to effect navigation bands
I did a little empirical test. I put a CD player near my VOR radio, and
sure enough I could hear the music coming through on the VOR! Certainly
not unsubstantiated anecdotal evidence.
I am sure that there are some experts who can explain this, but as I
understand it (I am not an EE, nor do I play one on TV), the RF comes from
crystal oscillators in the CD players and in the FM sets.
--
Keith Barr COMM AS&MEL/IA/A&IGI AERO/EIT
kbarr@csn.net Westminster, Colorado
http://www.csn/net/~kbarr #include <std.disclaimer>
