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Voice crypto unit
The SEC-13 was a voice crypto system developed in the
mid-1970s by Tadiran in
Israel. It was intended for use in combination with
existing radio networks, such as Clansman and
the American VRC-12
seriesradios. It was built according to
specifications layed out by the IDF (Israel Defense
Forces), but was also used by a number of NATO
countries. Due to its shape and connector at the rear,
the unit fits in the same space as an R-442 receiver.
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The image on the right shows a typical SEC-13 crypto
unit. It is easily recognised by the rather large red CLEAR and
green SECURE lamps
on the upper part of the front panel. Immediately below
the lamps is the selection of the key and the
appropriate (radio) net.
At the bottom of the front panel is the X-MODEconnector
(see
below), the MODE-selector
and the power switch (ON/OFF). The MODE-selector is used
for selection between CLEAR and SECURE and to enter the
keys. More detailed images of the front panel below. |
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At present, no further information about this crypto
unit is known. A slightly later version, the SEC-15,
features both voice and data encryption. It is clear
that they were scheduled to be replaced from 1995
onwards, by more modern equipment such as the SINCGARS
radios. Nevertheless, they remained in service well
into the 2000s.
Although they were used until recently, they sometimes
show up on the European surplus market, which is also
where the unit shown here was found. If you have
additional information about any of the Tadiran crypto
devices, please contact us. |
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