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Path: utzoo!mnetor!seismo!nbires!hao!hplabs!tektronix!tekig!tekig4!rickb
From: rickb@tekig4.UUCP (Rick Bensene)
Newsgroups: net.micro
Subject: Re: BSR X-10 Problems
Message-ID: <904@tekig4.UUCP>
Date: Wed, 27-Aug-86 14:44:43 EDT
Article-I.D.: tekig4.904
Posted: Wed Aug 27 14:44:43 1986
Date-Received: Thu, 28-Aug-86 09:21:50 EDT
References: <900@tekig4.UUCP>
Organization: Tektronix, Inc., Beaverton, OR
Lines: 40
Summary: Clarification of blame for BSR X-10 problems

In article <900@tekig4.UUCP>, rickb@tekig4.UUCP (Rick Bensene) writes:
> Greetings,
> 
> I've read with interest recent postings in net.micro (is this where
> these discussions should be held?) regarding the BSR home control
> system.  I have one of the 'new' Radio Shack CoCo Home Controller
> modules, two BSR command consoles, and a bunch of light switch modules,
> appliance modules, etc.  I have the CoCo Controller set up to handle
> routine scheduled events like turning on the flood lights at dusk,
> etc.  The command consoles are used to control lighting in various
> rooms of the house.  The whole system worked wonderfully until one
!> day...when I got my new computer (A Tektronix 6130 Unix Workstation)
!> and set it up.  Once I got the new system connected up and running,
!> the BSR modules started behaving VERY strangely...they would randomly
!> turn themselves on and off.  It was rather surprizing to have the bedroomm
!> light come on at 3:00 AM.  The only thing that I can figure is that
!!> the 6130 is somehow broadcasting 'noise' on the power line which fools
!!> the remote switches into thinking they are receiving valid commands
!!> to do things.

I should clarify the statements marked above with !'s a little in order
that I don't shed a bad light on Tektronix for manufacturing equipment
that emits all kinds of 'noise'.  The 6130 that I have is a non-production
unit...built up from parts.  It is not enclosed in a cabinet and probably
does emit all kinds of RFI and EMI.  Tektronix production 6130's are
completely certified by  the FCC and VDE as meeting all standards for
radiated interference. 

If my computer is indeed the cause of the interference (through no
fault of Tektronix's) is there any way of filtering out this interference
without resorting to encasing the machine in a wire mesh cage?

Sorry about any misconceptions this may have caused.

Rick Bensene
..tektronix!tekig4!rickb (work)
..tektronix!reed!{omen,percival}!bucket!rickb (home)
Phone: Weekdays (503) 627-3559 (work)
US Mail: Tektronix, Inc. - P.O. Box 500, Mail Stop 39-170 - Beaverton,
 Oregon  97077