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From: wiz@xroads.UUCP (Mike Carter)
Newsgroups: rec.ham-radio,sci.electronics
Subject: Re: Radio as peripheral card in PC, Mac, etc
Keywords: shielding
Message-ID: <916@xroads.UUCP>
Date: 9 Jan 90 23:36:21 GMT
References: <4349@sbcs.sunysb.edu>
Reply-To: wiz@xroads.UUCP (Mike Carter)
Followup-To: rec.ham-radio
Organization: Crossroads, Phoenix, AZ 85046
Lines: 29

In article <4349@sbcs.sunysb.edu> root@sbcs.sunysb.edu (Systems Staff) writes:
>Has anyone investigated building a receiver as a plug in peripheral to
>eg an IBM PC or Mac, etc?  I'm curious as to whether the major problem
>would be noise radiated into the frontend, or if power supply carried
>noise would be the problem.  
>
>					Rick Spanbauer, WB2CFV
>					State U of NY/Stony Brook


 
Rick:
 
	And just what would you be needing a radio INSIDE (?) the
computer for anyway?
I've hooked P.C's up to scanners and written programs to switch banks
and load banks with pre-stored frequencies before..and it hasn't been
a problem...although the scanner has been equipped with the necessary inter-
facing.
Are you thinking of some form of sampling set-up using a series of D/A and
A/D converters? 
The only time you'd get problems from a radio  receiver causing problems
is if the IF sections are not shielded..and I'll bet that would be
a very hard item to find these days.
Just make sure that you are supplying the radio receiver with power
from the computer's supply. Using an external supply is just asking
for trouble.
 	
		-Mike		N7GYX