Defence & Security
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Again and again information from important conferences leak to the outside. Sometimes conference talk is absolutely confidential and may cause a lot of damage if it is published unauthorized e.g. by the press.
PKI has specialized with various devices to prevent this.
Wireless tapping devices are eliminated by our jamming systems, for cable microphones
we use e.g. our PKI 4225.
PKI 6715 has been especially developed to eliminate direct recording during a conference
with different kinds of mobile phones.
PKI 6715 operates completely noiseless and prevents all voice recording of analog and
digital recorders, especially of mobile phones.
The ultrasonic transmission system in the frequency range from min. 15.000 Hz – 24.500 Hz
provides an interference signal that is received by the mobile phone- and smartphone-
recorders so that the recording of a conversation is no longer clear and understandable.
PKI 6715 comes in an desktop housing fitted with an tripod. It has to be positioned close to
the potential listening devices pointing towards them. For covering bigger areas you may
have to use several PKI 6715.
Specifications
Ultrasonic generator
Accu: 20.000 mAh
Frequency: 15.000 – 24.500 Hz 123dB
F1: 19.500 -24.500 Hz
F2: 19.400 -15.000 Hz
Power supply: 120-240 VAC and Li-ion battery built-in
Power consumption: 80W
Charger & Power Supply: 120-240V AC
Characteristics: blocks (70-80%), e.g. cell phones regardless of the standard of work
(GSM, 3G, 4G, CDMA etc.), voice recorders amateur and professional
level including digital and analog radio/wired microphones etc.
Operating range: by good conditions (acoustic reflections) up to 10m
Adjustment: stepless via potentiometer, also ON/OFF
Operating mode: green and blue LED
Power output: infinitely variable
Temperature range: 0° up to 45°C
Dimensions: Ø 340 mm x 90 mm
Weight: 1.5kg
Power supply: 12V battery (3A)
LED red standby: approx.. 7 days with accu
Switch 1 ON = LED green Fmin = 19.000 Hz
Switch 2 ON = LED blue Fmin = 25.000 Hz
Operating time with battery: approx.. 6 hours
Size: 33 x 24,5 x 5,2 cm
Weight: 3 kg
Remark: We would like to point out that not all mobile phones are jammed as this depends
on the sensitivity of the built-in microphones of the mobiles. PKI 6715 jams successfully
70-80% of the mobiles especially the higher classified ones.