Model:
NDB750-P25S-GP/GM
(also available as a NDB750w-P25
wire-in option)
Nabishi's
latest encryption module now
supports the XPTO and P25
Standards (OTAR version to
follow shortly)
Fitting this board to an
existing GP360/380 or GM360/380
converts a standard analogue
radio into a P25 compliant
radio/Digital radio with
additional operations
programmable on a global or
channel by channel basis.
Utilization of the
NDB750-P25S-GP/GM modules
provides a smooth, low impact
upgrade path for legacy radios
and delivers the most cost
effective means of achieving a
full digital radio roll out
combining your existing
equipment with the latest
digital radio technologies.
The
NDB750-P25S-GP/GM modules offer
the widest range of upgrade
options
available today.
Standards available on
NDB750-P25S-GP/GM
Nabishi's
standard digital encryption in
128 bit or 256 bit versions
Single speech Inversion (more)
The encoder/decoder has a
programmable carrier frequency in
order to support all known
versions of single speech
inversion systems operating with
carrier frequencies between
2000Hz and 4000Hz
Double
Speech Inversion (XPTO
compatibility)
The encoder/decoder provides for
32 different codes as used in the
XPTO standard modules
(See XPTO code table below)
P25
Standard
P25 phase one compatibility
Continuous 4 level FM (C4FM)
modulation for digital
transmissions in according with
P25 standard at 4800 baud and 2
bits per symbol, yielding 9600
bits per second total channel
throughput.
NAC support
User ID support
P25 clear voice support
IMBE Vocoder
P25
Encrypted
Continuous 4 level FM (C4FM)
modulation for digital
transmissions in according with
P25 standard at 4800 baud and 2
bits per symbol, yielding 9600
bits per second total channel
throughput.
NAC support
User ID support
P25 clear voice support
IMBE Vocoder
Combined with the Nabishi 128
bit AES encoder for stronger
encryption
P25 Clear
(Analogue)
Operation of the P25 signalling
but over an analogue (clear
voice) channel
|
The three outstanding
features of our
Digital Encryption modules!
We have set the
standards that
others find hard to
match. |
 |
 |
 |
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.
