
Advanced Wire tap Detector
This TT-46 detector is the only one that will let you check both single and two
line phones quickly and easily. It will check your phone lines for on premises
series and parallel bugs and wire taps.
While not much can be done about down-line taps, the TT-46 will help you check
your phone lines for on-premises series and parallel bugs and wiretaps. You can
also check your telephone for the most common types of hookswitch bypasses. (A
hookswitch bypass is a modification to the telephone instrument that causes the
transmitter or receiver in the telephone handset to pick up room sounds and pass
them down the phone line even with the phone hung up. This effectively turns the
telephone into a room monitor.)
The TT-46 detects series devices with a resistance of 10 ohms or more. (Most
series taps have a resistance of over 100 ohms.) It also detects parallel devices
with a resistance of 65 megohms or less. (Most parallel taps are under 30 megohms.)
It can also detect certain capacitively coupled taps.
Also included in the TT-46 is a line monitor that lets you check the wire pairs
for the presence of room audio when the phones are hung up. (The presence of
room audio on the phone line when the telephones are not being used is a sure
sign of bugging.) A line driver is part of the monitor function. The line driver
is used to turn on (activate) any voltage operated microphones, such as FET
mics, that may be connected to a pair of wires.
The unit weighs 9 oz. and measures 7" x 4.6" x 2.25" (with the
cover closed). It is powered by one 9 volt alkaline battery (included). Also
included are all necessary cords, plugs and adapters along with an illustrated
instruction manual.
Please note that neither the TT-46 or TT-07 are "magic boxes" that
are connected permanently to a working phone line. They are both test sets that
let you check your on-premises wiring and telephones for eavesdropping devices
or taps. In order to do this, you must be able to disconnect your inside wiring
from the telephone line coming into your home or business.
This is done at the interface between the telephone line and inside wiring;
usually just by unplugging a cable at the interface box mounted on the side
of the building. There is nothing difficult about this, but, of course, you
must have access to this interface box.

Specifications:
Detects series devices with a resistance of 10 ohms or more
Detects parallel devices with a resistance of 65 megohms or less
Checks single line phone systems for series and parellel taps
Includes:
9V battery
Cords
Plugs
Adapters
Illustrated instruction manual
SIZE:
7 1/4" x 6" x 2 1/4"
