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From: tomm@voodoo.UUCP (Tom Mackey)
Newsgroups: sci.electronics
Subject: Re: Stolen item-detectors (Was: Re: Laser eavesdropping)
Message-ID: <312@voodoo.UUCP>
Date: Fri, 24-Apr-87 14:40:09 EDT
Article-I.D.: voodoo.312
Posted: Fri Apr 24 14:40:09 1987
Date-Received: Sat, 2-May-87 02:08:06 EDT
References: <16143@sun.uucp> <2632@phri.UUCP> <1683@kitty.UUCP> <2634@phri.UUCP> <959@obelix.UUCP> <1696@kitty.UUCP>
Reply-To: tomm@voodoo.UUCP (Tom Mackey)
Organization: Voodoo Graphics Project
Lines: 19
Keywords: modulation

In article <1696@kitty.UUCP> larry@kitty.UUCP (Larry Lippman) writes:
>	Since other metallic objects (keys, jewelry, etc.) could conceivably
>cause UHF energy absorption within the sensitivity threshhold of a UHF device,
>HF systems in the range of 2.0 to 10.0 MHz have become more prevalent.  While
>HF detector elements are larger than the UHF variety, they offer a greater
>detection range and fewer false alarms.  Stores are _awfully_ concerned
>about false alarms - since they usually generate ill will among customers.

I had a store up in Bellingham, WA "finger" me several years ago.  The
device that set the alarm off was my Hewlett Packard HP-25 that I was
carrying in its belt-case.

I had to let the sales clerk carry it through the doorway before they were
convinced I had ripped nothing off.  You are correct.  I was _very_ annoyed.

-- 
Tom Mackey                                (206) 342-1442 (wk)
Boeing Computer Services    ....uw-beaver!ssc-vax!voodoo!tomm
M/S 03-73,     P.O. Box 24346,     Seattle, WA     98124-0346