Marconi CNR2000 User Guide

HF/VHF
TACTICAL COMBAT NET RADIO

CNR 2000

The CNR-2000 Family is a new
line of Marconi Selenia
Communications HF/VHF (1.6
MHz to 60 MHz) multiband ,
multirole, multifunction tactical
radio communication transceivers
embedding within a single package
the capabilities for different
operational roles in the
battlefield.

Operation over the extended 1.6
MHz to 60 MHz frequency range
allows short/medium/long haul
communications over LOS (Line Of
Sight), ELOS (Extended Line Of
Sight) and BLOS (Beyond Line Of
Sight) links with HF and VHF tactical
radios.

The open system, software
programmable architecture of the
CNR-2000 family allows the
expansion/customisation of
capabilities to meet specific
requirements and a progressive evo­lution towards future configurations
of the 21st Century tactical radio, in
line with the requirement for full
integration of lower-echelon field
units into the Command and
Control System.

The CNR-2000 equipment have
embedded facilities for operation as
elements within radio networks and
as radio communication
components interfacing with wired
communication systems, providing:

- Situational awareness using GPS
positioning data

- CNRA (Combat Net Radio
Access) services, such as
addressed call facilities between
CNR-2000 users and connection
to external tactical and
infrastructure networks.

EPM protection can be provided by
a TRANSEC/COMSEC proprietary
scheme implemented as an EPM
internal SW module.

STANAG-4444 will be implemented
as a future enhancement of the HF
EPM capability.

The CNR-2000 Family includes the
following equipment:

- SRT-178/M 25W HF/SSB -
VHF/FM 10W for manpack use

- SRT-178/VM 25W HF/SSB - VHF/FM
10 W for vehicular installations

- SRT-278/VM 125W HF/SSB -

VHF/FM 50 W for fixed/semifixed
installations with external High
Power Amplifier and Antenna
Tuning Unit

The primary role of the SRT-178/M
is to operate as a Combat Net
Radio in voice/data wireless
networks in the Forward Area,
providing connection between group
members at different levels.

These capabilities mean
unconstrained mobility, operational
flexibility and quick deployment in
the tactical battlefield.

The SRT- 178/VM and SRT-278/VM
are primarily intended for
deployment in vehicular, sheltered
or fixed Command Posts.

All the above three configurations,
are built around a common
Receiver/Exciter Unit which is
associated with:

- a built in RF Power Amplifier
suitable for rated RF power level

- a built in Automatic Antenna
Tuning Unit capable of matching
a wide selection of tactical whip
and wire antennas and mounting

DESCRIPTION

HF/VHF TACTICAL COMBAT NET RADIO

CNR 2000

25W manpack HF transceiver CNR2000

hardware specific to the type of

installation.
The vehicular transceiver is
designed for operation from the
vehicle's battery while the SRT-

178/M is provided with a
rechargeable battery pack
contained in a battery case secured
to the Transceiver package (there is
a choice of different battery types).

The user friendly Man Machine
interface allows the selection of
the operational modes by unskilled
personnel on the field.

Networking features

- Extended frequency band for

short, medium and longrange

communications

- Backward interoperability with

legacy equipment and waveforms

used in military and civilian

applications

- Exchange of information with

correspondents at same and

higher hierarchical level

- Packet rerouting to improve net

connectivity

- Gateway function to extend

communications outside the net

- Embedded TRANSEC/COMSEC

facilities for proprietary EPM

protection, implementation of

STANAG-4444 as growth

capability

- Embedded GPS providing

positioning data (Situational

Awareness) and accurate time on

TRANSEC/COMSEC operation

- Embedded multiwaveform modem

for data rates up to 9.6kb/s

- Embedded ALE (Automatic Link

Establishment) function as per

MIL-STD-188-141A

- Third generation ALE in accordance
with STANAG 4538 (fast link set
up) as growth capability

- HF-HF and VHF-HF rebroadcast
capabilities

- Embedded Combat Net Radio
Access (CNRA) to Area System

- Selective call

- Stand-by mode retaining all
configuration data

- Data Link Protocol STANAG
5066 with HF Email service (SW
suite WINDOWS OS based).

Technology

- SW Digital Radio Architecture
based on a real time operating
system and on extensive use of
digital DSP (Digital Signal
Processing)

- RF Front-End using SMD
components

Functional features

- Easy features upgrading by SW
download

- Preplanned Product Improvement

- Software
programming/reprogramming
interface

- CVSD voice coding

- LPC-10 voice coding

- MELP voice coding as growth
capability

- Simplex transmit and receive SSB
operation over the HF band, FM
over the VHF band

- Incorporated continuous and
interruptive BITE facilities for
isolation and front panel
indication of a faulty module

- User friendly operator interface

- Automatic antenna tuning with
memory storage of tuned
configurations

- Preset channel operation with
100 prestored channels
configurable

- Preset modem configuration with
100 prestored modem profiles

- Local and remote control facilities

MAIN FEATURES

25W HF Vehicular Station CNR2000

125W HF Vehicular Station CNR2000

125W HF RF Vehicular Power Amplifier125W HF Vehicular Antenna Tuning Unit

Frequency Band

Tuning Step

Modes od Operation

Preset Radio Channels

Preset data profiles

Types of Service

Frequency Stability

Setting Mode of Operation
(Frequency, Channel, etc)

Control

Transceiver dimensions
Transceiver weight
Antennas

Receiver

Sensitivity (S/N=10dB)
Selectivity
Output audio level
(Distortion Less Than 5%)

IF & image rejection

Transmitter

RF output power (on 50 ohm)

Intermodulation Products

Carrier Suppression

Harmonic Attenuation

Antenna tuning

Tuning Time

Primary power

Nominal consumption

Manpack battery life

Environmental

Temperature

EMI

Humidity,rain, corrosion, vibration

1.6 - 60 MHz

1 Hz (Frequency range 1.6-30 MHz )

25 kHz (Frequency range 20-60 MHz FM mode )
Simplex/Half Duplex

100

100

- Telegraphy (J2B)

- Morse (J2A)

- Voice plain/crypto (via internal crypto facilities) in USB/LSB (J3E),AM (A3E) and FM (F3E)

- FSK up to 300b/s in HF (STANAG-4481)

- NPSK data up to 3600b/s in HF (STANAG-4285/4529 and MIL-STD- 188-110A)

- NQAM data up to 9600b/s in HF (STANAG-4539

- Data up to 16kb/s in VHF

+/-1*10-6 /day

Through Alphanumeric Display and Keyboard

Local or Remote Via Internal Line
Modem (up to 3km)

250mm(W) x 240mm(D) x 80mm(H) without battery

3.7 Kg
Whip,Tactical and Transportable Dipole, Short/Long Wire,GPS

-110 dBm (USB, LSB), -97 dBm (AM) -100 dBm (FM)

300Hz to +3050Hz at 3dB -400Hz to +4550Hz at 60dB
Headphone: 15mW/600 ohm
Speaker 150 mW 4 ohm

80dB minimum (in HF band)

- SRT-178/M : 25W average and PEP (SSB), 10 W (FM)

- SRT-178/V : 25W average and PEP (SSB), 10W (FM)

- SRT-278/V: 125W average and PEP (SSB), 50W (FM)

30db min below the level of each tone

50dB min

45db min

Automatic

3 sec max for any frequency, 10 ms for stored frequency

- SRT-178/M manpack: 24 Vdc from Battery

- SRT-178/V Vehicular: 24 Vdc nominal from Vehicular Battery

- SRT-278/V Vehicular: 24 Vdc nominal from Vehicular Battery

- SRT-178/M : 72W max USB Voice

- SRT-178/VM: 78W maxUSB Voice

- SRT-278/VM: 600 W max USB Voice

10 hrs, based on a 9:1 receive to transmit duty cycle in USB voice mode, using 7.2Ah Nickel Metal Hydride battery.

-40°C to +55°C operating,

-40°C to +70°C storage

As per MIL-STD-461D

As per MIL-STD-810F

TECHNICAL SPECIFICATIONS

Marconi Selenia Communications S.p.A.

Viale dell’Industria, 4 - 00040 Pomezia RM
Tel. [phone] - Fax [phone]
e-mail: [e-mail]

Via A. Negrone 1/A - 16153 Cornigliano GE
Tel. [phone] - Fax [phone]

Marconi Selenia Communications Ltd

Marconi House, New Street, Chelmsford, CM 11PL - UK
Tel. [phone] - Fax [phone]

Marconi Selenia Communications GmbH

Gartenstrasse, 106 - 71522 Backnang - Germany
Postfach (P.O.Box) 1980 - 71509 Backnang
Tel. [phone] - Fax [phone]

Marconi Selenia Communications Romania Srl

8, Dr. Louis Pasteur - 76206 Bucharest - Romania
Tel. [phone] - Fax [phone]

Marconi Selenia Kominikasyon A.s.

Konya Yolu Km.25 - 06830 Golbasi (Ankara) - Turkey
Tel. [phone] - Fax [phone]

Marconi Selenia Communications Do Brasil

Brasilia (BR) - SHIS Q126 Conj 5 Casa 4 Bairro:
Lago sul Brasilia DF CEP 71670-050 Brasil
Tel. [phone] - Fax [phone]

This publication is issued to provide outline information only which (unless agreed by Marconi
Selenia Communications S.p.A. in writing) may not be used, applied or reproduced for any pur­pose or form part of any order or contract or be regarded as a representation relating to the
products or services concerned. Marconi Selenia Communications S.p.A. reserves the right to
alter without notice the specification, design or conditions of supply of any product or service.

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