BASIC CPM-700 RF PROCEDURE
17
REI
CPM-700
3.
Make a 360-degree walk around the target area while watching the
bar graph display. It will move up and down the scale as the unit
senses various RF levels.
4.
Locate the highest RF level in the room by moving the Probe in all
directions and watching the bar graph display.
5.
Probe all objects that could contain a hidden surveillance device. You
will see as you get close to the source of RF energy that the bar graph
will continue to rise. (Use Low Gain if “MAX” is displayed.)
6.
Turn off, and back on again, the lights and other equipment in the
target area. Watch for noticeable changes in the bar graph display.
Sometimes a faulty fluorescent lamp will produce strong RF
interference. The lamp can be removed or replaced. If the rise in the
bar graph cannot be attributed to such legitimate interference, then
suspect a bug in the area.
7.
Verify any detected RF signals to determine if the signal is an actual
surveillance device or a local “friendly” signal. Listening with the
headphones, determine if the energy is a local TV video, FM radio or
two-way transmission. Hearing your Known Sound Source (see page
19) is positive identification of an analog surveillance device. The
compact disc provided with the CPM-700 contains examples of various
transmissions. Be aware that if there is a strong RF signal, but no
audible audio, there is still a potential that the signal is a digital
surveillance device.
There are many other ways to use the CPM-700 than this basic description. Please
see additional details in the “DETAILED CPM-700 PROCEDURE” section and the
“PLANNING AND CONDUCTING A SWEEP” section.
REI offers regularly scheduled (monthly) Technical Security Counter-
Measures (TSCM) training courses.
Contact REI or visit our web site
www.reiusa.net
for more info.