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Wire tapping


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Uploaded by Ninja Master

WIRE TAPPING

HERE IS SOME INFO ON PHONE TAPS. I HAVE ENCLOSED A SCHEMATIC FOR
A SIMPLE WIRETAP AND INSTRUCTIONS FOR HOOKING UP A TAPE RECORDER
CONTROL RELAY TO THE PHONE LINE.

FIRST I'LL DISCUSS TAPS A LITTLE. THERE ARE MANY DIFFERENT TYPES
OF TAPS. THERE ARE TRANSMITTERS, WIRED TAPS, AND INDUCTION TAPS
TO NAME A FEW. WIRED AND WIRELESS TRANSMITTERS MUST BE
PHYSICALLY CONNECTED TO THE LINE BEFORE THEY'LL DO ANY GOOD.

ONCE A WIRELESS TAP IS CONNECTED TO THE LINE, IT CAN TRANSMIT ALL
CONVERSATIONS OVER A LIMITED RANGE. THE PHONES IN THE HOUSE CAN
EVEN BE MODIFIED TO PICK UP CONVERSATION IN THE ROOM AND TRANSMIT
THEM TOO! THESE TAPS ARE USUALLY POWERED OFF THE PHONE LINE, BUT
CAN HAVE AN EXTERNAL POWER SOURCE.

WIRED TAPS, ON THE OTHER HAND, NEED NO POWER SOURCE, BUT A WIRE
MUST BE RUN FROM THE LINE TO THE LISTENER OR TO A TRANSMITTER.
THERE ARE OBVIOUS ADVANTAGES OF WIRELESS TAPS OVER WIRED ONES.
THERE IS ONE TYPE OF WIRELESS TAP THAT LOOKS LIKE A NORMAL
TELEPHONE MIKE. ALL YOU HAVE TO DO IS REPLACE THE ORIGINAL MIKE
WITH THIS AND IT'LL TRANSMIT ALL CONVERSATIONS!

THERE IS AN EXOTIC TYPE OF WIRED TAP KNOWN AS THE 'INFINITY
TRANSMITTER' OR 'HARMONICA BUG'. IN ORDER TO HOOK UP ONE OF
THESE, YOU NEED ACCESS TO THE TARGET TELEPHONE. IT HAS A TONE
DECODER AND SWITCH INSIDE. WHEN IT IS INSTALLED, SOMEONE CALLS
THE TAPPED PHONE AND *BEFORE* IT RINGS, BLOWS A WHISTLE OVER THE
LINE. THE X-MITTER RECEIVES THE TONE AND PICKS UP THE PHONE VIA A
RELAY. THE MIKE ON THE PHONE IS ACTIVATED SO THE CALLER CAN HEAR
ALL CONVERSATIONS IN THE ROOM.

THERE IS A SWEEP TONE TEST AT 555BBUG-1111 WHICH CAN BE USED TO
DETECT ONE OF THESE TAPS. IF ONE OF THESE IS ON YOUR LINE AND
THE TEST # SENDS THE CORRECT TONE, YOU'LL HEAR A CLICK.

INDUCTION TAPS HAVE ONE BIG ADVANTAGE OVER TAPS THAT MUST BE
PHYSICALLY WIRED TO THE PHONE. THEY DON'T HAVE TO BE TOUCHING
THE PHONE IN ORDER TO PICK UP THE CONVERSATION. THEY WORK ON THE
SAME PRINCIPLE AS THE LITTLE SUCTION-CUP TAPE RECORDER MIKES YOU
CAN GET A RADIO SHACK. INDUCTION MIKES CAN BE HOOKED UP TO A
TRANSMITTER OR BE WIRED.

HERE IS AN EXAMPLE OF INDUSTRIAL ESPIONAGE USING THE PHONE:

A SALESMAN WALKS INTO AN OFFICE AND MAKES A FONE CALL. HE FAKES
THE CONVERSATION, BUT WHEN HE HANGS UP HE SLIPS SOME FOAM-RUBBER
CUBES UNDER THE HANDSET, SO THE FONE IS STILL OF THE HOOK. THE
CALLED PARTY CAN STILL HEAR ALL CONVERSATIONS IN THE ROOM. WHEN
SOMEONE PICKS UP THE FONE, THE CUBES FALL AWAY UNNOTICED.

I USE A TAP ON MY LINE TO MONITOR WHAT AE-PRO IS DOING WHEN IT
AUTO-DIALS, SINCE IT DOESN'T TAKE ADVANTAGE OF THE HANDSET ON THE
APPLE CAT II. I CAN ALSO HOOK UP THE TAP TO A CASSETTE RECORDER
OR AMPLIFIER. HERE IS THE SCHEMATIC:

------->!----->!<------------->
>!<
CAP ^ >!<
>!<
>!<
>!<
^^^^^--->!<------------->
^ 100K
!
!<INPUT

THE 100K POT IS USED FOR VOLUME. IT SHOULD BE ON ITS HIGHEST
(LEAST RESISTANCE) SETTING IF YOU HOOK A SPEAKER ACROSS THE
OUTPUT, BUT IT SHOULD BE SET ON ITS HIGHEST RESISTANCE FOR A TAPE
RECORDER OR AMPLIFIER. YOU MAY FIND IT NECESSARY TO ADD ANOTHER
10-40K. THE CAPACITOR SHOULD BE AROUND .47 MFD. IT'S ONLY
PURPOSE IS TO PREVENT THE RELAY IN THE CO FROM TRIPPING AND
THINKING YOU HAVE THE PHONE OFF THE HOOK. THE AUDIO OUTPUT
TRANSFORMER AVAILABLE AT REDIO SHACK (273-1380) IS FINE FOR THE
X-FORMER. THE BLACK AND GREEN ARE FINE FOR INPUT AND THE RED AND
WHITE GO TO THE OUTPUT DEVICE. YOU MAY WANT TO EXPERIMENT WITH
THE X-FORMER FOR THE BEST OUTPUT.

HOOKING UP A TAPE RECORDER CONTROL RELAY IS EASY. JUST ONE OF
THE FONE WIRES (USU. RED) BEFORE THE TELEPHONES AND HOOK ONE END
TO ONE WIRE OF THE RELAY AND THE OTHER END TO THE OTHER RELAY
WIRE. LIKE THIS:

-------^^^^^^^^^------------
---------
RELAY^^
ee

 
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