Short Range Devices
Short range listening devices include
a variety of elements which can be hidden and left to record or transmit
signals. The most common of these is the phone tap. It can dicretely breach
a phone connection, and monitor all calls, using either a link which allows
a listener to hear the conversation as it occurs, or a recorder to record
the conversation (spooktech.com).
Monitor: This system allows a user to monitor the sound in a room via regular
phone lines. It employs a two-step user identification procedure, and can
pick up a whisper 35 feet away. Many sensitive microphones like this one
employ an overload switch which prevents the listener from being deafened
by a loud noise. This item sells for $230 to $300.
Recorder: This system allows up to 8 hours of recording of both sides of
a telephone conversation. To cut down on tape use, it has a feature which
causes it to be activated only when voices are present. It sells for $180
Another type of phonetap system is
known as "the Informer". This device allows monitoring of sound activity
in the entire room where the bugged phone is -- after the phone has been
hung up. This device is plugged into the wall, and is very inconspicuous,
allowing undetected monitoring of activity. Another version of this device
allows the room to be monitored constantly, without an initiating phone
call. These devices sell for $350 to $400 (intelpro.net).
There are also very small bugs which
can be placed in many different hidden locations on a person, piece of
furniture, light socket, pager, etc. These bugs are not legal for general
use within the United States, and vary in cost (intelpro.net).
Last updated May 14, 1999