Discreet communication | Discreet communications
Discreet communication.
Generally
it is possible to say, that all systems for hidden communication have
transmitting and receiving part.
Receiving part:
The
wireless earphone itself is the most difficult technical part. It must have miniature
dimensions, minimum weight, high quality of sound, sufficient operating time,
high safety during its usage, simultaneously it should be friendly to human ear.
The present types enable to operate for several hundred of hours with usage of
quality zinc-air batteries. There exist some types of wireless earphones, which
do not need batteries. Its implementation to human ear canal is quick and safe.
It does not require assistance of second person. The signal transmission is secured
by induction transmission. Signal from receiver excites the inductor, then the wireless
phone processes this signal and changes it to an acoustic signal in the ear
canal. We can use radiostation, scanner, special single-channel receiver, GSM mobile...
as receiver, simply all, what is sufficiently small and provides a quality
reception of required signal.
Using
the GSM phone mobile is ideal. Acceptable price of mobile is advantage,
sufficient confidentiality of GSM system’s encryption, difficult discovering of
such a system, we are not limited by distance, the minimum size enables a
secret wearing on one’s body. If payment of mobile phone is not a disadvantage,
the mobile phone as receiver is an ideal solution.
Transmitting part:
Hidden
microphone under the clothes with sensitive preamplifier and transmitter provide
for transmission of audio signal. If we request a larger range, then we will prefer
the GSM mobile as a transmitter. In case we need to transmit a video signal, we
can decide for transmission in GSM network eventually for a classic transmission
at suitable UHF frequency. Wireless microphone and camera in pen, camouflage
camera into a button, into a tie clasp ... these are only some of many offered
possibilities of camouflage.
Particular
technical solution and resultant set of system depends on actual situation. We will
be glad to assist you with configuration
of the system according to your request, for using in areas where defence means,
jammers, noise generators, etc. are applied.
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