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From: hgw@julia.math.ucla.edu (Harold Wong)
Newsgroups: sci.electronics
Subject: Re: Re: economical to modify a scanner radio ?
Message-ID: <182@sunset.MATH.UCLA.EDU>
Date: 7 Nov 88 16:14:45 GMT
References: <4156@tekgvs.GVS.TEK.COM>
Sender: news@MATH.UCLA.EDU
Reply-To: hgw@math.ucla.edu (Harold Wong)
Organization: UCLA Mathematics Department
Lines: 17

In article <4156@tekgvs.GVS.TEK.COM> jans@tekgvs.GVS.TEK.COM (Jan Steinman) writes:
><...the public safety services all seem to use FM (even Highway Patrol at 42 
>MHz) but aircraft tend to use AM. (would anyone care to explain why?)...>
>
>Capture effect.  You don't want to lose your contact with a 747 on final 
>because someone nearby turned on an FM broadcast radio that happend to be tuned 
>10.7 MHz higher!

Wouldn't noise and losing contact be more of a problem?  Just think of your
AM radio in the car.  



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Harold Wong         (213) 825-9040 
UCLA-Mathnet; 3915F MSA; 405 Hilgard Ave.; Los Angeles, CA 90024-1555
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