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Our new HF Digital Encryption System secures
voice communications for HF radios which are
also known as "long range" or
"ship-to-shore" radios. This is an ideal
solution considering that HF radios are
easily monitored due to the vast distances
their transmissions cover .
Using our HF Digital Encryption, your HF
radio is affectively converted to a DIGITAL
radio as well as the added peace of mind
that no one else can listen to your
transmissions.
The encryption can either be wired
directly into your existing HF radio
or an external interface boxed version may
be plugged into an external
auxiliary port available on most makes of HF
radios. Alternatively, we can supply you a
complete HF radio with the encryption
already fitted. See our
online shop for more details.
The New Nabishi HF
Digital Radio Encryption System can be
connected internally
into any HF radio
(with a wire-in module) or externally (with an
Interface box unit)
 Nabishi's Digital Encryption system for HF
Radios, works on
SB
&
SSB
(side band and single side band) mode, utilises the
NHF-256B (External Interface) and NHF-256M
(Wire-in Module) with a 256-bit AES
algorithm convert normal voice
communications into encrypted
DIGITAL voice communications
make your calls totally secure against all
levels of
eavesdropping . With our new NHF-256b
External interface system, it is even easier
to convert existing HF analogue (analog) transceivers
to Secure Encrypted Digital voice with NO
transceiver modifications.
The NHF-256b External interface system and
the NHF-256m wire-in module will
automatically detect a digital signal and
decodes it and channel the audio in clear or
secure mode, so you also maintain full
analogue capabilities. Our
Digital Encrypted
Voice
Encryption could be the biggest
revolution in HF radio since SSB!
Our HF encryption modules have been tested
and work with Vertex, Icom, Barratt, Codan
and many other makes of HF radios.
Digital Encryption modules are also modules
for VHF & UHF radios.
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The three outstanding
features of our
Digital Encryption
modules!
We have set the
standards that
others find hard to
match. |
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Our modules
perform superbly
which is what sets
them apart from the
rest! |
Sound
Quality - This is
outstanding in our
encryption modules and one
of the main reasons why our
Digital Encryption modules
are so successful. Without
good sound quality, most
users switch-off the
encryption and communicate
in an in-secure mode
therefore by-passing
security and allowing anyone
to listen into their over
the air conversations.
Performance &
reliability - The
performance of our Digital
Encryption modules is superb. The
modules work perfectly and reliably
even in the harshest of environments
and in all makes of radios.
Synchronisation Speed -
One of the main failures of most
encrypted radio is the
synchronisation speed which if a
radio fails to synchronise quickly,
will result in broken and un-audible
communications. In most cases, if
the communicating radios fail to
synchronise then not only there a
breakdown in communication, but also
most users will switch-off the
encryption and expose their
subsequent communications in clear
mode therefore compromising security
of their communications.
Compression
Techniques - This is the
heart of our system and one the main
reasons for the success of our
Encryption Systems. With over 18
years experience in compression
techniques, we have so perfected the
art that this creates the superb
performance which our Digital
Encryption Modules have become
famous world-wide.
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Special Starter Pack offer!
Want to see how good our
encryption modules work?
here is an opportunity for
your to purchase
online a pair of our
modules to fit (either
internally or externally)
in all makes of HF radios
The package
consists of 2 internal modules or
external interface units,
programming leads, software and
installation instructions. In most
cases the modules simply plug &
play. In a few cases a minor
adjustment may be necessary,
depending on the make of radio
(setup instructions are supplied). |
Technical
specification of NHF-256B (external interface
unit)
and
NHF-256M (internal-fit module)
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Bandwidth |
400
to
2600
Hz |
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Channel
modulation |
8-FM |
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Subcarrier
frequency |
1350 Hz |
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interleaver |
360
ms |
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Compensation
of frequency drift |
±30
Hz,
1 Hz/sec |
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Compensation
of symbol speed
mistiming |
±100*10 -6
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Compensation
of multipath/fading |
0...5
ms, 3..8
Hz |
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Receive
–transmit delay, not more |
1.5
sec |
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Vocoder |
MELPe 1200/2400
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Working mode |
Simplex |
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Power supply |
5 to
12V |
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power
consumption,
not more |
1 Wt |
NHF-256B
Internal Module
Using our Wire-in Module
Encryption can be installed into any HF
radio
NHF-256B External
Interface Unit (front and rear view)
The Encryption System can remain outside
the HF radio by using this
simple to attach
NHF-256B (Interface) unit
A
typical Interface of the External unit
to an HF radio
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