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Article View: comp.sys.ibm.pc.misc
Article #59

Re: My PC locks on phone call

#59
From: gordon hlavenka
Date: Thu, 29 Oct 1992 04:58
28 lines
1783 bytes
 lad9452@ritvax.isc.rit.edu writes:
>Please help me.  Twice, now, I've been working in Microsoft Word 5.0 (DOS)
>and received a phone call.  Suddenly I find my work is lost (because, like
>a jerk, I did not save my work prior-- not as if I could actually foretell
>the telephone ringing).  

I'm sure you will get many theories concerning IRQs and COM port
settings on your modem, and one (or more) of them may in fact be
correct.  But let me describe for you my own weirdness:

We have an IR-activated light fixture in our house (it turns itself on
while you're in the room and shuts itself off when you leave) which
turns on whenever the phone rings.  Mind you this light fixture
connects to _nothing_ except the AC mains.  I also have noticed that I
(sometimes) get memory parity errors on my PC when the phone rings.

Both problems were traced to an OLD Cobra cordless phone, the base
unit of which is within 10 feet of both the PC and the light fixture.
Whenever the base keys its transmitter (like to ring the handset) it
creates a pulse of RF garbage which messes with sensitive electronics.

The phone has been retired.

-- 
----------------------------------------------------
Gordon S. Hlavenka           cgordon@vpnet.chi.il.us
  Don't forget:  Dave Barry/Joe Walsh in November!
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Message-ID: <1992Oct29.045852.7163@vpnet.chi.il.us>
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References: <1992Oct27.003505.12490@ultb.isc.rit.edu>

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From: cgordon@vpnet.chi.il.us (gordon hlavenka)
Newsgroups: comp.sys.ibm.pc.misc
Subject: Re: My PC locks on phone call
Message-ID: <1992Oct29.045852.7163@vpnet.chi.il.us>
Date: 29 Oct 92 04:58:52 GMT
References: <1992Oct27.003505.12490@ultb.isc.rit.edu>
Organization: Vpnet Public Access
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