Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!rutgers!jvnca!njitsc1!argus!ron From: ron@argus.UUCP (Ron DeBlock) Newsgroups: comp.sys.atari.st Subject: Re: rf shield in the cpu Message-ID: <968@argus.UUCP> Date: Wed, 22-Jul-87 15:36:39 EDT Article-I.D.: argus.968 Posted: Wed Jul 22 15:36:39 1987 Date-Received: Fri, 24-Jul-87 06:10:23 EDT References: <238UD138985@NDSUVM1> <791@atari.UUCP> Organization: NJ Instit of Tech, Newark NJ Lines: 42 In article <791@atari.UUCP>, apratt@atari.UUCP (Allan Pratt) writes: > in article <238UD138985@NDSUVM1>, UD138985@NDSUVM1.BITNET says: > > > > I was wondering if the RF shield could be left out to make > > any more room inside, or will that mess up the electrical operation of > > the machine? > > Bob > > Removing the RF shield is not recommended, because it is required to > comply with FCC emissions requirements. However, it does not affect the > operation of the computer itself. If you remove the shield, you AND > YOUR NEIGHBORS might get interference on your TV's, and you will > certainly not be able to use your AM radio. I don't know about ham, CB, > or other radios. > > /----------------------------------------------\ > | Opinions expressed above do not necessarily | -- Allan Pratt, Atari Corp. > | reflect those of Atari Corp. or anyone else. | ...lll-lcc!atari!apratt > \----------------------------------------------/ (APRATT on GEnie) It MAY interfere with the operation of the computer, if a transmitter is nearby. Legal ham radio power levels (probably CB, too) can disturb electronic equipment, including digital equipment. It makes sense if you think about it: there are suddenly some weird signals on the bus (any conductor can be an antenna) and the machine gets very confused. Remember: if RF can get out, it can also get in! And vice versa. Leaky RF can cause some very bizzarre problems in modern high-speed digital equipment. "The ozone overflows with Radio Waves." - Roger Waters {filler} -- Ron DeBlock KA2IKT uucp: ...!siesmo!rugters!galaxy!andromeda!argus!ron