DETAILED CPM-700 PROCEDURE
REI
CPM-700
26
5.
Check the line where it enters the
wall by repeating the on-hook/off-
hook procedure.
6.
Go to the patch panel or the
telephone switching system and
repeat the above; have someone go
“on-hook” and “off-hook” while you
are testing (if you have a long off-
hook message or alert tone, listen
for it while testing).
7.
Repeat the above tests at the meter (utility) room or outside at the
drop point where the phone line enters the building.
NOTE: A normal non-bugged phone or phone-line will present a
momentary click and a small change in RF levels when the phone is taken
off-hook, with no dial tone heard through the headphones.
NOTE: With older type multi-line phones, which use 25- pair connectors, it
is necessary to perform all the above tests and inspections on each
instrument in the building. The older type phones can be used as a “remote
location” to connect a surveillance device since all phone lines are
available along the cable and within each telephone instrument.
TRACKING DEVICES
Using the Standard RF Probe, the CPM-700 can detect and locate certain
types of RF tracking transmitters that are used to track vehicles. The typical
“Bumper Beeper” uses an output of 100 milliwatts to more than 5 watts
and usually has a pulsed output. Newer GPS (Global Positioning System)
tracking devices are of two types:
1.
Non-transmitting – these devices only log where a vehicle has
been. They must be removed to be read or downloaded, and are
not detectable with the CPM.
2.
Transmitting – Usually on cellular phone frequencies, these devices
transmit either: a) at regular intervals, or b) only when the GPS
detects movement during a certain interval.