GETTING STARTED
On the P-03, set the
LINE DRIVER/OFF
switch to
OFF
. The A/B switch can be in either
position. Plug the P-03 into the probe jack on the top end of the TD-53. Plug the
headphones into the headphone jack on the side of the TD-53.
FINDING MICROPHONES
Detection of a concealed microphone and the L.P. to which it is connected can be a
tedious procedure, but is not technically difficult. Once audio is recovered on a wire pair, the
wire must be physically traced until both ends are found. Keep in mind that wires leading to
any loudspeaker in the target area (i.e. part of an intercom or Music system) can be
exploited by an eavesdropper. The reason is that loudspeakers can act just like
microphones. Use the following procedures to search for hidden microphones.
1.
Turn on a sound source in the target room such as a radio. Next, turn on the
TD-53 and set the
MODE
switch to “
VERIFY
”. Ignore any indications on the LED meter.
Make sure the
DRIVER
switch on the P-03 is “
OFF
”.
2.
Connect to P-03 alligator clips to the wires to be tested. If necessary, scrape
just enough insulation off the wires to expose them for the alligator clips. After the tests are
completed, cover the scraped areas with the electrical tape.
NOTE: We DO NOT
recommend that you perform any tests with this equipment on AC power wiring
.
3. Operate
the
A/B
switch to both positions. If the red LED on the P-03 comes on
in either position, a DC voltage is present on the wire pair. If the LED is on in both positions,
an AC voltage is present. If a voltage is indicated, use standard safety procedures when
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