|
The New Nabishi HF
Digital Radio Encryption system can be
connected internally
using a module or externally using an
Interface box unit
In response to worldwide demand, Nabishi
have developed the NHF-256B (External
Interface) and NHF-256M (Wire-in Module)
make encrypted
DIGITAL voice communications even
more affordable. With our new NHF-256b
External interface system, it is very easy
to convert existing HF analogue 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!
Technical
specification of NHF-256B (Interface) and
NHF-256M (Module)
|
Bandwith |
400…2600
Hz |
|
Channel
modulation |
8-FM |
|
Subcarrier
frequency |
1350 Hz |
|
interleaver |
360
ms |
|
Compensation
of frequency drift |
±30
Hz,
1 Hz/sec |
|
Compensation
of symbol speed
mistiming |
±100*10 -6
|
|
Compensation
of multipath/fading |
0...5
ms, 3..8
Hz |
|
Receive
–transmit delay, not more |
1.5
sec |
|
Vocoder |
MELPe 1200/2400
|
|
Working mode |
Simplex |
|
Power supply |
5...12V |
|
power
consumption,
not more |
1 Wt |
NHF-256B
(Interface) and NHF-256M (Module)
Using our Wire-in Module
Encryption can be installed into any HF
radio
NHF-256B (External
Interface System)
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
|
Secure Digital HF
Radio Encryption
