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Covert transmitter and receiver
In the mid-1980s,
Audiotel International Ltd.
(UK) produced a series of body wearable covert radio systems. The systems
consisted of a transmitter (TX) and a separate receiver (RX) that were small
enough to be hidden under a person's clothing.
Covert radios like this are often used for surveillance tasks
and VIP protection. The image below shows a typical RX/TX pair.
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The unit on the left is the VRX-SL receiver. The one on the right is the
VTX-22 transmitter.
Each unit has its own battery and a piece of wire that is used as the antenna.
A variety of different types of microphone was available for the transmitter,
ranging from a small concealed one, to microphones with a separate push-to-talk
(PTT) switch.
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© Copyright 2009-2013, Paul Reuvers & Marc Simons. Last changed: Sunday, 04 May 2014 - 22:55 CET
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