Path: utzoo!attcan!uunet!tektronix!orca!stank
From: stank@orca.TEK.COM (Stan Kalinowski)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Why clone the PS/2?
Message-ID: <2565@orca.TEK.COM>
Date: 19 May 88 22:46:17 GMT
References: <8685@eleazar.Dartmouth.EDU> <5823@well.UUCP> <10600@steinmetz.ge.com> <1642@looking.UUCP> <1180@neoucom.UUCP>
Reply-To: stank@orca.UUCP (Stan Kalinowski)
Organization: Tektronix, Inc., Wilsonville, OR
Lines: 23

In article <1180@neoucom.UUCP> wtm@neoucom.UUCP (Bill Mayhew) writes:
>design high performance peripheral devices.  One qualitative test
>in our standard battery of trails and tribulations is to see if a
>49 MHz cordless phone can be operated in the vicintiy of a given
>machine.  The model 80 is the only machine that we've tested that
>shows virtually no RF leakage.  We were even able to place the
>phone base unit directly on the cabinet of the model 80.

I think your test is a good idea, but I would go one step furthur.
Use one of these new fangled portable "walkman" type FM receivers to
measure RF leakage.  The coordless phone only tests for leakage in its
operating band, with the radio you can check a wider spectrum.  Of
course, these techniques are not a substitute for a formal EMI/RFI
emissions test.  But then again, only the larger companies can afford
the cost of shielded cages and anechoic chambers to carry out such
tests.

							Stank

-- 
US Mail: Stan Kalinowski, Tektronix, Inc.	
         Information Display Group, Graphics Workstations Division
         PO Box 1000, MS 61-028, Wilsonville OR 97070   Phone:(503)-685-2458
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