Name: WBS2500

Text: Technical Description
Wideband Jammer
WBS2500

CONFIDENTIAL – Subject to change without prior notice!

CONFIDENTIAL – Subject to change without prior notice!

CONTENTS
1.INTRODUCTION

4

2.HERITAGE

5

2.1
2.2

Overview of Product Range
Product Range Continuity

3.WBS2500 VEHICLE SYSTEM DESIGN
3.1
3.2
3.3

3.2.1
3.2.2
3.3.1
3.3.2

Overview
Electrical design
Power Supply Options
Electrical Interconnect
Mechanical Design
Weight model
Vehicle changes

4.WBS2500 KEY SYSTEM COMPONENTS
4.1
4.2

4.3

4.4

4.2.1
4.2.2
4.2.3
4.2.4
4.2.5
4.2.6
4.2.7
4.2.8
4.3.1
4.3.2
4.3.3
4.4.1
4.4.2

Overview
Detailed Technical Description
Key Features
Technical Specification
Frequency Coverage
RF Power and Effective Range
RADHAZ
Power Requirements
Platform Integration
Upgradeability
Other Core Equipment
Anti-Vibration Mounting Tray
Omni-directional antenna
Remote Control Unit
Options
12V DC Power Adapter
Directional antennas

5.FAMILY CHARACTERISTICS
5.1
5.2
5.3
5.4
5.5
5.6

Man-Machine Interface
Jamming Capabilities
Interoperability
Security & Integrity
Programmability
Built-In Test (BIT) Features

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6

7
7
8
8
9
9
9
10

10
10
13
13
14
16
16
16
17
17
17
18
18
18
19
20
20
20

24
24
25
25
25
26
26

6.SYSTEM PROGRAMMING & OPERATION
6.1
6.2
6.2.1
6.2.2
6.2.3
6.3
6.3.1

Overview
Concept of Operation
Mission Creation
Mission Programming
Operation
User Software
Mission Editor

27
27
27
27
28
28
28

7.Training
7.1
7.2
7.3
7.4

27

29
Training Ethos
The Training Courses
Product Training
Specialist Training

29
29
29
29

FIGURES
Figure 2-1 : RCIED ECM Product Roadmap .............................................................................5
Figure 3-1: Vehicle Installation External View ..........................................................................7
Figure 3-2: WBS2500 Unit Vehicle Installation.........................................................................7
Figure 3-3: System Block Diagram ...........................................................................................8
Figure 4-1: WBS2500 Unit ....................................................................................................10
Figure 4-2: Simplified Block Diagram of WBS2500 Unit .......................................................11
Figure 4-3: WBS2500 Block Diagram ....................................................................................12
Figure 4-4: Example Target Coverage of WBS2500 Unit ......................................................16
Figure 4-5 : AV mounting tray ................................................................................................18
Figure 4-6: Ultra-wideband 2G5-500 Antenna .......................................................................19
Figure 4-7: Remote Control Unit ............................................................................................19
Figure 4-8: 12V DC Power Adapter .......................................................................................20
Figure 4-9: A0054 Antenna ...................................................................................................21
Figure 4-10: A0067 Antenna .................................................................................................22
Figure 4-11: 3m Mast............................................................................................................23
Figure 5-1: WBS2500 Front Panel.........................................................................................24
Figure 6-1: WBS2500 Basic Configuration and Operation Process........................................27
Figure 6-2: Mission Editor GUI ..............................................................................................28

CONFIDENTIAL – Subject to change without prior notice!

• 1 INTRODUCTION
This document it provides an overview of the WBS2500 counter RCIED system. This is a modern,
purpose built RCIED ECM product that represents an excellent solution for simple fitting and integration with SUV type platforms.
The information in this proposal is grouped in the following sections:
• 2. Heritage
Describes the ECM product roadmap with a brief overview of each current product.


3. WBS2500 Vehicle System Design



Identifies the selected components for this requirement, the overall hardware configuration on
the vehicle, top level capability and system attributes.



4. WBS2500 System Components

Provides detailed technical descriptions of all constituent system components at a unit or component level.


5. Family Characteristics

Details common system attributes such as the man-machine interface (MMI), programmability, BIT
capability, etc.


6. System Programming & Operation

Describes the system programming capability inclusive of origination of the mission fill that controls
the system through loading of this into the system and the subsequent system operation.


7. Training

Describes the EW Training capability and the proposed training package to be offered in support of
this programme.


8. Installation

Describes the vehicle installation capability to be used for this programme.


9. After Sales Service

Details the proposed maintenance strategy for the equipment.

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4

2.

HERITAGE

2.1.

Overview of Product Range

With the rapid rise in the need to counter RCIEDs, Elaman was able to immediately find effective
solutions based on its existing EW product range but with optimised software fills. This gave
Elaman excellent early exposure to this market allowing the definition of further products with increasingly refined and advanced characteristics. A brief history, the current key products and emerging products are all summarised in the ECM product roadmap below (Figure 2-1).

KEY:
MCS512
Modular
Manpack

Core products
New products

Responsive option

Under Development

CES0512
&
CES0512EB
Manpacks

Planned

25-512MHz &
GSM Bands

25-512MHz

TMP &
TMP-EB
Lightweight
Manpacks

MCS2500
Modular
Manpack

25-512MHz &
GSM Bands

Responsive option

500-2500MHz

TARAX &
CES0174

CES0512
&
CES0512
CES0512EB

30-88MHz
27-174MHz
25-512MHz &
GSM Bands

WBA0512
Booster

WBA-EB
Booster

25-512MHz

GSM Bands

MVS2000
Vehicle
System

WBS & WBE
Wideband
Systems

25-512MHz &
GSM Bands

25-2500MHz

Responsive
Systems

Receiver
Unit

Ongoing R&D

Figure 2-1 : RCIED ECM Product Roadmap

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The main features of current products are listed below:
• CES0512 - A flexible, hand portable, battery powered EW equipment featuring receive, transmit and signal processing elements allowing the support of a wide range of ECM and ESM
roles. It covers a frequency range of 25-512MHz at an output power of 10W.


CES0512EB - A companion unit to the CES0512 in the same mechanical package but providing
alternative GSM-targeted frequency ranges of 880-960, 1710-1880 and 1850-1990MHz at an
output power of 10W.



MVS2000 - The MVS2000 is a vehicular/fixed site based modular system using the CES0512
and CES0512EB modules to cover the noted frequency ranges. It also incorporates the
WBA0512 unit which boosts the level in the 25-512MHz range to 100W. A companion booster
WBA-EB increases the CES0512EB level to 50W. Facilities such as remote control, central zeroization and GPS synchronisation are available.



CES0512/CES0512EB Man packs - These are CES0512/CES0512EB units repackaged for use
in a man pack role. All the core equipment features are retained plus forced air cooling and easy
to change battery pack allow for reliable and convenient use in a backpack configuration.



TMP0512/TMP0512EB Man packs - These products are second generation dedicated man
pack units optimised for weight and size to enhance usability in tactical situations. The same
frequency ranges are covered as the CES range at 10W output power but without a receive facility. A control panel optimised for RCIED applications is provided giving easy to use alarm and
zeroize features. A high technology carbon fibre body provides excellent strength while meeting
the low weight requirement.



WBS2500 - The WBS2500 was produced in response to the market requirement for a ‘one
box’ solution for vehicle ECM, following on the success of the modular MVS2000 system. The
WBS2500 builds on the technologies and techniques pioneered and proven in the CES and MVS
families, and features an enhanced frequency coverage range of 25-2500MHz with no gaps and
dual power amplifiers providing 100W low band and 30W high band coverage.

2.2.

Product Range Continuity

Elaman has pursued an evolutionary approach to ECM product design where common successful
elements are flowed through from one generation to the next. This facilitates a rapid design cycle
while minimising risk and allowing new features to be introduced to a stable core, whether in terms
of packaging or electronic capability.
For example, in the new range of lightweight TMP man packs the transmit card is the same as the
CES range but other electronics and the housing are all new creating a step in product performance
but with a strong heritage.
The same is true of the WBS2500 where signal processing and generation techniques are derived
from the CES range but an all new housing and modular amplifiers allow the unit to satisfy the
compact, one box requirement.
Embedded firmware and GUI software follow a similar strategy of maximum re-use. This leverages
the extensive testing and operational exposure of previous generations while allowing new products
to be evolved in the shortest time and work concentrated on truly new features. It provides indirect
user benefit in retaining the look and feel of operator interfaces particularly the GUI used to create
the defining mission fills for the system. This is the Threat Management System.
Elaman have an ongoing very active PV development programme for RCIED ECM equipment and
users of current generation equipment can look forward to both continuing enhancements to existing equipment, e.g. useful accessories or appliqués, software feature updates, etc and the future
availability of new, enhanced products which will have a familiar operating pattern.
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3.

WBS2500 VEHICLE SYSTEM DESIGN

In this section the proposed vehicle system configuration is described. Information on the constituent components is provided to a greater level of detail in Section 4.

3.1.

Overview

The selected RCIED countermeasure product is designed for vehicle fitting with minimum intrusion
on the usable vehicle accommodation and for ease of operation. Figure 3-1 shows an external view
of a Toyota Landcruiser with a WBS2500 system fitted. The only visible feature is the roof mounted
ground plane and antenna.

Figure 3-1: Vehicle Installation External View

The WBS2500 unit is fully remotely controllable thus can be fitted where convenient, the remote
control unit normally being located for access by personnel in the front seats. Figure 3-2 shows an
example installation of the WBS2500 unit in the rear luggage area. The detail of the subject installation would be confirmed in consultation with the customer during a vehicle survey.

Figure 3-2: WBS2500 Unit Vehicle Installation

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3.2.

Electrical design

The WBS2500 unit is a ‘single box’ solution for RCIED protection and this level of integration results
in a simple external electrical design with minimised cabling and intrusion on the vehicle space. This
is illustrated in the system block diagram of Figure 3-3 below.

Figure 3-3: System Block Diagram

3.2.1.

Power Supply Options

The WBS2500 unit has a power consumption of a maximum of 550W at full RF output power from
a nominal 24V supply (the unit will tolerate supply voltages of 20 to 32V and is equipped with protection against the vehicle electrical environment).
There are three options for power supply from the vehicle. The most appropriate will be determined
in consultation with the customer following a vehicle survey to establish the vehicle capability as
fitted.
• 24V vehicle supply
If the vehicle is inherently 24V, or is already equipped with an auxiliary 24V capability, and the
supply is of adequate capacity (>550W) the WBS2500 system can be connected to this supply
without additional measures.
• High capacity 12V vehicle supply
If the vehicle is 12V and is equipped with a high capacity alternator or dedicated auxiliary 12V alternator/battery system then the WBS2500 can be connected to this supply via a 12V DC Power Adaptor accessory (see Section 0). The 12V DC Power Adaptor has a minimum efficiency of 80% at 12V
thus the 12V supply must have a minimum continuous capacity of approximately 700W requiring a
current capacity of >57A at 12V.
• Auxiliary 24V alternator/battery
If the vehicle has a standard capacity 12V alternator then this capacity is sensibly reserved for standard vehicle functions and the addition of other fitted electrical items, e.g. communications equipment, accessories, etc. Subject to satisfactory vehicle survey, Elaman can fit an auxiliary 24V alternator and battery. The WBS2500 system is then connected to this supply.

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3.2.2.

Electrical Interconnect

Electrical wiring required in the vehicle to accept the WBS2500 system is modest. The power
supply is derived from the vehicle by one of the fitting options described above. The only other connections are a thin umbilical cable to the Remote Control Unit (RCU) and a pair of RF cables to the
roof mounted wideband antenna.
To programme the unit with an updated Mission Fill (see Section 6) a temporary connection is required to a laptop PC. This is made via a programming cable to the WBS2500 front panel. This only
needs to be connected during the Mission Fill activity – the laptop PC is not part of the operational
system, the WBS2500 operates independently once programmed.

3.3.

Mechanical Design

A vehicle survey will confirm the exact location of system components in consultation with the customer to ensure best use of the vehicle internal space and to take account of any other equipment
normally carried by the user in the vehicle, or other special equipment fitted. The small size of the
WBS2500 system allows for flexibility in mounting location.
A typical installation location for the SUV class of vehicle would be with the WBS2500 unit in the
rear luggage space (Figure 3-2). The unit is mounted by locking into a complementary AV tray which
provides protection against shock and vibration while allowing easy removal of the unit for servicing
or transfer to another application.
The only constraint on mounting is that the unit uses forced air cooling provided by integrated fans.
The inlet and exhausts have to be kept clear to ensure the unit is adequately cooled. Consideration
must therefore be given to airflow obstruction by bulkheads, luggage, etc.
The RCU is a small box and is thus straightforward to position in the personnel area at a location
convenient for operation and monitoring of the system.
The wideband antenna has standard US 4-hole and NATO3/6-hole fixing. To avoid vehicle piercings
the antenna is mounted to a ground plane assembly which in turn is mounted to the vehicle via the
standard roof bar fixing system. This arrangement is visible in Figure 3-1.

3.3.1.

Weight model

The weight model for the system is detailed in the table below. This identifies the total payload
weight added to the vehicle by incorporation of the WBS2500 system. Some items are indicated as
estimates as the final values will not be determined until the vehicle survey has finalised the mounting and power supply arrangements.
WBS2500 System Weight Model

Item

Weight (kg)

WBS2500 Unit

16

AV tray

3.5

RCU

0.5

2G5-500 Wideband Antenna

5

Roof Ground Plane Mount

8 (est)

Cable set

3 (est)

24V Auxiliary Alternator and Mount

6 (est)

24 V Auxiliary Battery and Case

15 (est)

TOTAL

57kg

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3.3.2.

Vehicle changes

The WBS2500 system is designed for easy fitting to vehicles while minimising vehicle modifications. The following specific items are noted:
• A 24V auxiliary alternator and battery may be required. The alternator can be fitted via a
standard mounting kit. The battery would be fitted in a convenient location. If inside the vehicle a closed battery box vented to the outside would be used.


The WBS2500 unit is mounted via the AV tray. The latter is normally bolted directly to the
vehicle floor or other substantial surface.



The RCU is a small box normally bolted to the vehicle in the forward personnel area.



The antenna is mounted via an integrated ground plane to the normal vehicle roof bar system fixings without modification

A vehicle survey would be conducted to agree exact locations of the equipment in the subject vehicles. This survey will allow tailoring of various mounting kits for the installation.

4.

WBS2500 KEY SYSTEM COMPONENTS

4.1.

Overview

The WBS2500 unit is the core component of the system (Figure 4-1). The unit is a versatile, compact, state-of-the-art multi-channel programmable active jammer operating over the 25-2500MHz
range.

Figure 4-1: WBS2500 Unit

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The basic architecture of the WBS2500 is shown in Figure 4-2 (see Figure 4-3 for a more comprehensive block diagram). The unit contains a Digital Signal Processor (DSP) that controls six Direct
Digital Synthesizer (DDS) devices, each of which is capable of generating a wide variety of softwaredefinable jamming waveforms, from narrowband spot jamming signals through to broadband barrage and swept jamming techniques. Five of the DDS outputs pass through programmable frequency up-converters, allowing the jamming signal from the DDS to be steered to any part of the
25-2500MHz range*, while the sixth DDS output is fixed at baseband to cover the 25-220MHz
range.

Figure 4-2: Simplified Block Diagram of WBS2500 Unit

Each of the six RF jamming channels can be routed to one of two built-in wideband power amplifier
modules – a low-band amplifier covering 25-500MHz at up to 100W or a high-band amplifier covering 500-2500MHz at up to 30W – or routed to an auxiliary output to drive an external amplifier. Each
of the built in amplifiers outputs pass to a separate antenna connector, allowing the WBS2500 to be
connected to an optimised pair of antennas or to a single dual-band antenna.
The WBS2500 is fully field-programmable and can be rapidly reconfigured using a serial connection
or USB from a laptop PC to change its jamming waveforms, target frequencies and operating parameters. These settings are stored in non-volatile memory to be activated automatically whenever
the equipment is switched on. The internal operating software can also be upgraded easily to support new jamming techniques or other enhancements.
The WBS2500 unit is designed to fit directly into an anti-vibration shock mounting tray for installation in a vehicle or can be fitted into a standard 19” chassis. The unit accepts an input supply range
of 20-32V DC and is designed for a 24V vehicle environment; other supply options, including mains
AC power and 12V DC vehicle supplies can be accommodated via external adapters.

*

Note that the 25-2500MHz tuning range is continuous, with no gaps, blind spots, or other such limitations.
This ensures maximum versatility and adaptability to future threats and avoids the limitations of “banded”
jamming equipments that are tied to only today’s specific threat bands.
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Figure 4-3: WBS2500 Block Diagram

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DDS MANAGER
(FPGA)

EXT GPS
ANTENNA
(ACTIVE)

SUPERCAP

REAL-TIME
CLOCK

ANTITAMPER

uP
SUPERVISOR

DSP

COMMS
PORT

UARTs

USB

AUX COMMS
PORT

INTERFACES

FPGA
(GLUE LOGIC)

UPCONVERTOR
CONTROL

25-2500MHz (150MHz B/W)

UPCONVERTOR BLOCK

25-2500MHz (150MHz B/W)

UPCONVERTOR BLOCK

25-2500MHz (150MHz B/W)

UPCONVERTOR BLOCK

25-2500MHz (150MHz B/W)

UPCONVERTOR BLOCK

25-2500MHz (150MHz B/W)

UPCONVERTOR BLOCK

25-220MHz

UPCONVERTER BOARD

RCU
PORT

ADCs

BLANKING
& TIMING
SIGNALS

PSUs

COMBINER

COMBINER

EXPANSION
PORT

IrDA

SWITCH
CONTROL

SWITCH

AUXILIARY OUTPUTS (FOR EXTERNAL AMPLIFIERS)

FRONT PANEL (MEMBRANE)

FLASH
MEMORY

SYSTEM
CLOCK

DDS
x2

GPS
ANTENNA

GPS
RECEIVER

PROCESSOR
BOARD

DDS
CONTROL

DDS
x2

DDS
x2

DDS
x2

DDS
x2

DDS
x2

COMBINER
COMBINER
COMBINER
COMBINER
COMBINER
COMBINER

PSU BOARD

FAN CONTROL
& THERMAL
MANAGEMENT

FANS

POWER
AMPLIFIER
(500-2500MHz)

POWER AMPLIFIER
HIGH BAND

POWER
AMPLIFIER
(25-500MHz)

POWER AMPLIFIER
LOW BAND

BATTERY
INPUT

CB

DC POWER
INPUT

DC PROTECTION
& EMC FILTERS

PA PSU(s)

RF/VSWR
SENSORS

RF/VSWR
SENSORS

RF MONITOR
BOARD

500-2500MHz

ANTENNA PORT

25-500MHz

ANTENNA PORT

4.2.

4.2.1.

Detailed Technical Description

Key Features

Key features of the WBS2500 unit are outlined below and described in more detail in subsequent
sections:


Continuous coverage from 25-2500MHz.



Six programmable RF jamming channels: five channels with 150MHz bandwidth tunable
from 25-2500MHz, and one with 195MHz bandwidth fixed at 25-220MHz.



Each channel may be routed to an integral power amplifier or re-directed to an auxiliary output to drive an external amplifier.



Dual power amplifiers and antenna ports (25-500MHz at 100W and 500-2500MHz at 30W) to
allow the use of a single dual-band antenna or pair of optimized antennas.*



Each jamming channel has an independent DDS-based signal source capable of generating a
wide range of software-configurable jamming signals.



Each DDS is a 2-channel device, i.e. each of the six output channels may contain up to two
simultaneous jamming signals. (Multiple signals will have a reduced amplitude to ensure
that the peak envelope power remains constant.)



Fully field-reprogrammable via RS232 serial and USB 2.0 (full speed – up to 12Mbps) interfaces.



Internal GPS receiver with integral antenna and also a connection for an external active antenna.



External timing and blanking inputs to synchronize operation to other equipment.



Comprehensive built-in test (BIT) and diagnostic features to monitor the unit’s health, detect
fault or alarm conditions and alert the operator using an integral alarm sounder.



Remote Interface to allow the connection of a remote control unit (e.g. mounted in a driver’s
cab)



Expansion port to support future add-on peripherals and accessories.



Powered from an external 20-32V DC source. Power consumption 550W maximum.



Local (and remote) zeroize function.



Periodic maintenance and re-calibration can be performed without removing covers and with
the minimum of test equipment. No STTE or tools are needed.

*

Note that the maximum power (+50dBm) is only available for a single carrier. Multiple carriers will have a reduced amplitude to ensure that the peak envelope power remains constant (nominally two at +44dBm, three at +30dBm or four at
+28dBm).
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4.2.2.

Technical Specification

Article I.

WBS2500

Article II.

Key Parameters

Article III.
Outputs

No of RF

Article IV.

Article V.
Frequency Range

Article VI.

Article VII.
Power

Article VIII.
Article IX.

Output

2
25-2500MHz continuous
Low Port:
High Port:

Up to 100W into 50 load
Up to 30W into 50 load

Article X.
Frequency Stability with
Temperature

Article XI.
< ±1ppm output frequency accuracy over operational temperature range

Article XII.
Frequency Stability over
Time

Article XIII.
Internal TCXO and OCXO references can be recalibrated to compensate for ageing

Article XIV.
Sources

Signal

Article XV.
Six independent software-programmable DDS RF
signal generators, one fixed at 25-220MHz range and other five
tuneable from 25-2500MHz. Each channel is capable of generating
up to 2 simultaneous signals.

Article XVI.
Time

Tuning

Article XVII.
Article XVIII.

Up-converters:
1ms (typical)
DDSs: Instantaneous

Article XIX.
DDS
Update Rate

Article XX.
Depends on operating mode and can be up to
125MHz (8ns).
Article XXI.
All DDSs can be updated in parallel.

Article XXII. Jamming Waveforms &
Modulation

Article XXIII. Fully programmable, software defined, including
spot, swept, and TDM jamming techniques

Article XXIV. Interfaces
Article XXV.
puts

RF Out-

Article XXVI. Two antenna ports, 50 nominal, short- and opencircuit protected.
Article XXVII. Low Port
25-500MHz
Article XXVIII. High Port
500-2500MHz

Article XXIX. Power
Inputs

Article XXX.

20-32V DC 550W maximum

Article XXXI. Programming

Article XXXII. Via multi-function Comms/Fill connector – new parameters can be loaded into the unit from a laptop PC via RS232 or
USB

Article XXXIII. Auxiliary

Article XXXIV. Remote Control Unit interface
Article XXXV. 1PPS input & output ports
Article XXXVI. Receiver control input for responsive jamming
Article XXXVII. Six remote RF channels
Blanking input
Article XXXVIII.
Article XXXIX. Expansion connector for future accessories
Article XL.
Internal and external (active antenna, 3.3V @20mA)
GPS

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Article I.

WBS2500

Article XLI.

Physical & External

Article XLII.
sions

Dimen-

Article XLIII.

380mm x 330mm x 190mm (W x D x H)

Article XLIV.

Mass

Article XLV.

16kg

Article XLVI. Power
Consumption

Article XLVII. 550W maximum

Article XLVIII. Construction

Article XLIX.

Cast and machined aluminium alloy chassis

Article L.

Article LI.

642/P9001/3 Black powder coat

Article LII.
Temperature Range

Article LIII.
Article LIV.

-40°C to +55°C operating
-40°C to +85°C storage

Article LV.
ronmental

Envi-

Article LVI.
Designed to withstand blowing rain, dust & sand.
Ruggedised to meet shock, vibration & crash hazard. Designed to
be compliant with the following MIL-STD 810F tests:
Article LVII. Low Pressure Survival
Article LVIII. Low Temperature Operation & Storage
Article LIX. High Temperature Operation & Storage
Article LX. High Humidity
Article LXI. Blowing Rain
Article LXII. Blowing Dust & Sand
Article LXIII. Functional Shock*
Article LXIV. Vibration (Operation)*
Article LXV. Transit Drop & Crash Hazard (75g)*
Article LXVI.
Article LXVII. * - these tests conducted using the anti-vibration
(AV) mounting tray.

Article LXVIII. EMC

Article LXIX. Designed to minimize conducted and radiated emissions and for minimal susceptibility to radiated and conducted
sources. Designed to be compliant to MIL-STD 461E. Power
supply designed to be compliant with the requirements of DEFSTAN 61-5 for vehicular systems.
Conducted Susceptibility
CS101,
Article LXX.
CS114, CS115, CS116
Article LXXI.
Conducted Emissions CE102, CE106
Article LXXII.
Radiated Emissions RE102
Article LXXIII.
Radiated Susceptibility
RS103
Article LXXIV.
ESD Immunity BS EN61000-4-2
Article LXXV.
Transient Protection DEF STAN61-5
(Part 6) 40V
Article LXXVI.
DEF STAN 59-41 (Part 3)/5
Article LXXVII.
DCS06 600V transient
Article LXXVIII.
Reverse Polarity
TRL proprietary
test

Finish

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4.2.3.

Frequency Coverage

The WBS2500 unit covers the 25-2500MHz range, and can generate jamming signals at any point in
this range – there are no blind spots or other frequency restrictions. This ensures that the WBS2500
unit can address both current and future threats, wherever they appear within the 25-2500MHz
spectrum, and avoids the limitations of “banded” jamming equipments that are tied to specific
threat bands.
The unit provides six independent jamming channels, five of which can be steered to any part of the
25-2500MHz spectrum while the sixth is fixed at the baseband 25-220MHz range. Each of the six
channels is equipped with an independent direct digital synthesizer (DDS), capable of a wide range
of different software-defined jamming modes and techniques (see section 5.2).
The six independent RF jamming channels allow a single WBS2500 unit to cover a broad range of
targets. Figure 4-4 shows how the six channels might be employed. Channels 1 to 3 are grouped
together to cover numerous targets in the 25-500MHz region, channel 4 covers the GSM900 band,
channel 5 covers the GSM1800 band, and channel 6 covers the 2.4GHz band. Within each channel
the DDS can be configured to generate appropriate jamming signals, using sweep and/or TDM
techniques if necessary to address multiple targets or bands.

Figure 4-4: Example Target Coverage of WBS2500 Unit

4.2.4.

RF Power and Effective Range

The range capability of a system is extremely hard to quantitatively predict as it is affected by so
many factors, e.g. RF output power, antenna efficiency and radiation pattern on the actual platform,
local geography and any local building structures, the deployment of the target device and its antenna, the relative range and characteristics of the initiating transmitter, the jamming waveform
used and any compromises associated with the number of simultaneous jamming waveforms deployed whether due to peak power or TDM limitations.
Jamming performance can only be proved in a carefully controlled test situation where the system
is deployed against known and calibrated targets to a specific test plan. Even then, experience has
shown that results are to some extent statistical due to the variability of radio propagation, particularly at high frequencies where significant multipath effects are encountered. Results are typically
presented as a range capability at which some high percentage success is achieved, e.g. 85%,
based on a number of test runs.
For these reasons Elaman are unable to provide a conclusive compliance statement on range performance but base their equipment offering on easily verifiable engineering units, e.g. RF output
power.
Elaman has capability allowing it to develop and provide recommended Mission Fills. As these are
programmable they can be rapidly updated in response to changing threats or to suit customer preferences. The WBS2500 can hold up to four Mission Fills at one time, selectable from the front
panel. Alternative fills may thus be held in the unit if required to cope with particular threat priorities
relating to particular routes or operations.

4.2.5.

RADHAZ

The WBS2500 generates up to 100W in the low band and up to 30W in the high band, both radiated
from the ultra wideband antenna. Common to all high power RF equipment this gives rise to a potential RADHAZ. The areas of hazard are to occupants of the vehicle and personnel outside the vehicle.
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In the UK, the National Radiological Protection Board (NRBP) has adopted the International Council
on Non-ionising Radiation Protection (ICNIRP) standard for setting safe limits of radiation exposure.
This standard is also widely used in other European countries and other countries of the world, and
has similarities to other accepted standards, e.g. IEEE, ANSI, FCC.
The WBS2500 has been tested in conjunction with the 2G5-500 antenna in a representative vehicle
(Landrover type) against the Occupational limits of the ICNIRP 98 standard. The results showed that
at all passenger locations within the vehicle the radiation level was within the limits and for personnel outside the vehicle the limit was only approached when in very close proximity to the antenna
(<0.3m).
These measurements indicate that there is little likelihood of a RADHAZ arising in practice following
some basic training of personnel in operating procedure. Field strengths can vary with differing vehicle installations and it is recommended that the customer verifies closest distance of approach
figures for the actual installation.

4.2.6.

Power Requirements

The WBS2500 has been designed for vehicular operation from a nominal 24V vehicle electrical system. The unit has a tolerance of input supply voltage between 20 and 32V and includes filtering and
transient protection for the vehicle electrical environment. Power consumption is a maximum of
550W and will be lower than this if the full transmission power resource is not utilised.
There are a number of power supply options depending on the vehicle capability. These are detailed
in Section 3.2.1. The final option is normally determined in consultation with the customer following
a vehicle survey.

4.2.7.

Platform Integration

The WBS2500 Unit can fit directly into Elaman’s standard AV mounting tray (section 4.3.1.) or be
installed in a 19” rack by the addition of a mounting kit. Hence it is ideal for either vehicle-mount or
static base installations.

4.2.8.

Upgradeability

The WBS2500 unit has been designed for future expansion in several directions.

Upgradeable Operating Software
In addition to being field-reprogrammable via mission configuration files to change its operational
parameters, target frequencies, jamming modes, etc, the entire operating system firmware in the
WBS2500 can also be field-upgraded via the Fill Gun function of the Mission Editor. This powerful
capability allows entirely new jamming techniques and other enhancements and features to be introduced in response to future threats and changing requirements.

External Amplifiers
In addition to driving the wideband power amplifier modules within the WBS2500, each of the six
RF channels can be re-routed to a port on the rear of the unit for connection to an external amplifier.
This feature would, for example, allow optimised narrowband amplifier modules to be added to the
system to cover well-established target bands while the versatile wideband amplifiers in the
WBS2500 are focused on other areas.
Internal Modularity
Internally the WBS2500 uses modular construction based on functional blocks. Individual modules
could be replaced in future to achieve different or enhanced functionality.

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Expansion Interface
The WBS2500 unit has an Expansion socket that carries a variety of flexible signal inputs and outputs that can be defined in software; this is designed to allow the unit to communicate with future
peripherals and be interfaced to other external equipment.

4.3.

Other Core Equipment

In addition to the WBS2500 unit, described in the previous section, a number of ancillary items will
be provided for this proposal.

4.3.1.

Anti-Vibration Mounting Tray

The WBS2500 Unit is designed to fit into Elaman’s standard AV mounting tray shown in Figure 4-5.
This provides shock and vibration protection for the electronics package in a wheeled vehicular environment.

p
Figure 4-5 : AV mounting tray

The equipment locates on rear spigots and is locked in place by front ratchet clamps. This provides
a secure fixing while allowing easy demounting for service or replacement. The AV mounting tray
has been proven in formal MIL-STD-810F Vibration, Shock and Crash Shock tests.

4.3.2.

Omni-directional antenna

To minimise visual signature and for ease of use a single ultra-wideband antenna is proposed, covering the whole frequency band of operation (25-2500MHz). This is shown in Figure 4-6 below.
The antenna is a dual-band design, featuring two independent elements within the same body: the
larger diameter section near the top provides the high frequency performance while the main body
provides the low frequency element. The two antenna bands are matched to the frequency ranges
of the two antenna ports provided by the WBS2500 unit, allowing the antenna to be directly driven
by the WBS2500 unit without any additional diplexer or other matching arrangements. The antenna
has an omni-directional radiation pattern in azimuth. Optional directional antennas can be provided,
described in Section 4.4.2.
The antenna has a sprung mounted base to provide flexure in the case of overhead impact.

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Figure 4-6: Ultra-wideband 2G5-500 Antenna

The antenna’s characteristics are summarised in the table below:
2G5-500 characteristics
Antenna type

Integrated vertically polarised whip

Frequency range

Low band : 25-500MHz
High band : 500-2500MHz

Impedance

50 ohm nominal

VSWR

<3:1

Colour

Black

Weight

<5kg

Height

1.65m

Mount

Standard 4 hole NATO mount

4.3.3.

Remote Control Unit

The Remote Control Unit is a small box, designed to be mounted in a vehicle cab or similar accessible location, which replicates the controls and indicators from the WBS2500 front panel. This allows
the WBS2500 unit to be mounted remotely where convenient in the vehicle for best use of space.
Figure 4-7 shows the WBS2500 RCU.

Figure 4-7: Remote Control Unit

Note : the remote control unit shown is designed for handheld use. For the subject vehicle installation a unit
providing equivalent functionality with the same front panel layout would be used but housed in an aluminum
alloy housing with mounting features.

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4.4.

4.4.1.

Options

12V DC Power Adapter

The 12V DC Power Adapter translates a 12V vehicle electrical supply to nominally 28V to allow operation of the WBS2500 system in 12V vehicles. The unit is shown in Figure 4-8 below. It features
electronic protection and input filtering for compliance with the vehicle electrical environment and
can be mounted into the same design of AV tray as the WBS2500 to provide shock and vibration
protection, and ease of fitting and removal.
The unit has an output capacity of up to 800W and can also operate from a 24V input thus if the
system is configured with this unit it may be operated interchangeably with 12 V and 24V vehicle
supply inputs.
If a direct 24V vehicle supply is available from original equipment or by fitting of a 24V alternator and
battery as part of this installation, then the Power Adaptor is not required (see Section 3.2.1.).

Figure 4-8: 12V DC Power Adapter

The unit is constructed to form a sealed electronics compartment with a cold wall and heatsink cooling the system via integrated forced air cooling operating in the ambient environment. This approach to equipment partitioning has proved reliable in both formal Environmental testing under
conditions of driving rain and sand/dust, and in field conditions.

4.4.2.

Directional antennas

The primary antenna recommended for the WBS2500 is the vehicle mounted omni-directional antenna described in Section 4.3.2.
Optionally, directional antennas can be supplied for use with the system. These can be vehicle
mounted for mobile operation (but present a significantly higher visual profile than the omnidirectional antenna array) or fitted to a mast for static only operation. Low and high band directional
antennas can be supplied with the characteristics described below.


Low band antenna A0054

The A0054 low band antenna has a frequency range of 100-500MHz and supports coverage of 100500MHz when connected to the Low Band port of the WBS2500 system. The 25-100MHz frequency range is not supported when using the directional antenna option. Antennas to provide significant
gain at these low frequencies are extremely large and only suited to static, mast mounted implementations.

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Figure 4-9: A0054 Antenna

The directional antenna provides enhanced gain in comparison with the standard omni-directional
antenna but only over a limited horizontal and vertical field of view. The approximate beamwidths
with respect to frequency are summarised in the table below.
Frequency

Horizontal 3dB beamwidth - Azimuth

Vertical 3dB beamwidth - Elevation

100 MHz

64°

111°

224 MHz

61°

106°

500 MHz

57°

96°

The antenna’s key characteristics are summarised in the table below:
A0054 characteristics



Frequency range

100-500MHz

Polarisation

Nominally vertical

Gain

11dBi typical

Impedance

50 ohm nominal

Power rating

1000W RMS continuous

VSWR

<2.5:1

Colour

Sand

Weight

6kg (excluding mounting kit)

Dimensions

1.6 x 1.7 m (W x L)

Mount

Off-centre on 1.1m fibreglass isolation pole

High band antenna A0067

The A0067 high band antenna has a frequency range of 800-3000MHz and supports coverage of
800-2500MHz when connected to the high Band port of the WBS2500 system. The 500-800MHz
frequency range is not supported when using the directional antenna option.

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Figure 4-10: A0067 Antenna

The directional antenna provides enhanced gain in comparison with the standard omni-directional
antenna but only over a limited horizontal and vertical field of view. The approximate beamwidths
with respect to frequency are summarised in the table below.
Frequency

Horizontal 3dB beamwidth - Azimuth

Vertical 3dB beamwidth - Elevation

800 MHz

50°

60°

1500MHz

45°

70°

3000MHz

35°

80°

The antenna’s key characteristics are summarised in the table below:
A0067 characteristics



Frequency range

800-3000MHz

Polarisation

Nominally vertical

Gain

11dBi minimum

Impedance

50 ohm nominal

Power rating

50W RMS continuous

VSWR

<2:1

Colour

Olive green

Weight

7kg (excluding mounting kit)

Dimensions

0.55 x 0.7 x 0.15 m

Mount

50mm rear clamps to vehicle mount kit or static
mast.

Mast

The above directional antennas can be equipped with vehicle mounts though are obviously large for
vehicular applications. Alternatively a mast can be supplied for static operation. Height options are
available from 2m to 15m and the mast features a tripod construction to aid rapid deployment and
quick set up operation under light wind conditions in temporary situations. For more demanding
environments and the taller mast options the supplied guy kit should be used for stability.
An example mast deployment is shown in Figure 4-11 with an A0054 antenna fitted.

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Figure 4-11: 3m Mast

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5.

FAMILY CHARACTERISTICS

5.1.

Man-Machine Interface

The WBS2500 is equipped with a comprehensive control panel carrying 4 switches and 11 LEDs.
The function of these is outlined below. Note that, to avoid accidental operation, most buttons
need to be held down for 1-2 seconds to take effect.
ZEROIZE
PRESS & HOLD

IRDA

MISSION
SELECT

A

VOLTS

B

ANT

C

TEMP

D

FAULT

ALARM
STATUS
BEACON
PRESS & HOLD

STANDBY
ANTENNA 1
ACTIVE

SYNC / GPS

ANTENNA 2
ACTIVE

Figure 5-1: WBS2500 Front Panel



The green Power button turns the WBS2500 unit on and off. The green LED adjacent to
this button is lit when the unit is powered on.



The orange Standby button toggles the unit between standby and operational modes.
When in Standby the unit is not jamming and can be reconfigured with a new mission file.
When Operational, the unit is transmitting using the selected mission file.



The blue Mission Select button toggles between up to four mission files stored in memory.
The four LEDs adjacent to the button indicate which mission file is in use (A, B, C or D).



A red Alarm LED lights in the event of a problem. When an alarm is active, pressing the
Alarm Status button causes one of the A/B/C/D LEDs to light to indicate the nature of the
alarm:
VOLTS

= low battery or supply voltage

ANT

= antenna or VSWR problem

TEMP

= over temperature

FAULT

= other serious problem, e.g. internal PSU or RF failure



The Sync/GPS LED indicates when a valid GPS and/or 1PPS timing signal is present (e.g. for
timing protocol purposes). Note: This is only applicable for units equipped with a GPS antenna and operating in a synchronised system.



The Antenna Active LEDs indicate when RF power is emerging from the antenna ports;
these indicate that jamming is taking place.



Pressing and holding down the Mission Select and Alarm Status buttons together for
three seconds will cause the unit to zeroize .

A subset of these controls and indicators are provided on the Remote Control Unit (section 4.3.3.).

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5.2.

Jamming Capabilities

Each of the six RF jamming channels is equipped with an independent direct digital synthesizer
(DDS) capable of generating a wide range of software-defined jamming signals. Jamming modes
include:
• Spot Jamming – a basic narrowband signal, either CW or with suitable modulation, designed to target a specific frequency channel.


TDM Techniques – a spot jamming signal that hops around a list of target frequencies.



Sweep Jamming – a carrier signal that sweeps repeatedly across one or more bands of
frequencies.

Each of these modes has a number of user-defined parameters to allow it to be tailored for optimum impact on a given target signal. Additional modes and techniques can readily be introduced in
the future via software upgrades to take advantage of new algorithms and techniques.

5.3.

Interoperability

The unit is equipped with a number of features to allow it to interoperate in the vicinity of other
ECM, ESM, and communication equipment.

Protected Frequencies
The Mission Editor software provides the ability to define and apply protected frequencies: lists of
frequency channels and/or bands that are not to be jammed by the system. During mission creation
any attempt to encroach on these frequencies will be blocked by the software.

Timing Protocol Support
The equipment provides full support for timing protocols; if a GPS antenna is fitted and this feature
is enabled the unit will automatically mute or blank its RF outputs at software-defined intervals to
allow other monitoring or receiving equipment in the vicinity to operate.
The timing protocol is synchronised to a GPS-derived 1pps timing signal. This signal may either be
obtained from the equipment’s own built-in GPS receiver or from external GPS equipment.

Blanking Input
An external Blanking Input allows the unit’s RF outputs to be blanked at any time under the control
of external equipment.

5.4.

Security & Integrity

The system is equipped with a number of features to provide security and integrity for itself and for
sensitive data stored within it.

Zeroize
All mission data and other sensitive information in the unit can be erased via the front panel controls
or equivalently from the Remote Control Unit.
To minimise the possibility of accidental operation, two buttons on the front panel must be pressed
and held for greater than four seconds to trigger the zeroize operation. Once commenced the operation is irrevocable. The unit can be restored to operation by reloading of the firmware and a mission fill using the Fill Gun function of the Mission Editor.

Mission Configuration File Security
Mission configuration files (mission fills) are encrypted using the AES encryption algorithm to render
their contents unreadable. The file is only decrypted once it is loaded into the unit.
The mission configuration file also incorporates a CRC code, hidden beneath the AES encryption
that allows the equipment to validate its contents. If the CRC code is incorrect – due to a file error
or unauthorised tampering with the file – it will be rejected by the system and an appropriate warning displayed by the Fill Gun function.
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5.5.

Programmability

Force Protection equipment is programmed via Mission Configuration Files loaded into the unit from
a laptop PC running the Mission Editor application. The Mission Configuration Files define the operational frequencies, jamming modes, and related parameters and are created using the Mission Editor software. The programming methodology and software are described in more detail in Section
6.

5.6.

Built-In Test (BIT) Features

The WBS2500 unit contains comprehensive built-in test (BIT) facilities that are used to check the
unit’s health before operation (during the power-on self-test) and to continue to monitor its status
during operation.
Sensors within the equipment allow a variety of key parameters to be measured and monitored,
including:


External DC Supply Voltage



Internal DC Rail Voltages



Output RF Levels (forward power and reverse power)



Temperatures (internal air temperature and heatsink temperature)



Fan Status

In the event of a problem, a red Alarm LED lights on the WBS2500 front panel and Remote Control
Unit. The unit also contains an audible alarm buzzer (which can be disabled in software). During an
alarm, four multi-function LEDs on the front panel of the WBS2500 unit provide a more specific indication of the nature of the problem.
The BIT facilities and sensors can also be accessed from a laptop during maintenance and troubleshooting via special test commands and menus to help diagnose problems.

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6.

SYSTEM PROGRAMMING & OPERATION

6.1.

Overview

The WBS2500 unit is designed to be field-programmable, easily reconfigured with new operational
parameters, target frequencies and jamming waveforms to meet changing threats and scenarios.
All the operating parameters are contained in an encrypted Mission Configuration File that is
loaded into the equipment from a laptop PC acting as a Fill Gun via a serial or USB programming
port. Once a fill has been loaded, the WBS2500 will simply perform the pre-programmed jamming
mission whenever it is switched on, allowing it to be operated by relatively unskilled front-line personnel.

6.2.

Concept of Operation

The process of creating, distributing and loading mission files and subsequent operation of the
equipment is illustrated in Figure 6-1. Each of the three stages requires a lower level of expertise
and training.

Figure 6-1: WBS2500 Basic Configuration and Operation Process

6.2.1.

Mission Creation

Mission creation would be performed by a nominated highly-trained individual with EW/ECM experience and access to the latest intelligence material, target information and threat priorities. Based
on this information, he will use the Mission Editor to select appropriate jamming waveforms and
frequencies to suit a particular theatre, operational location or group of users. These parameters are
saved in an encrypted Mission Configuration File that can then be distributed via appropriate
channels to the users in the field.
Mission creation is typically carried out away from the front line in a secure environment (given the
sensitive and classified nature of the intelligence and data used to guide the jamming configuration).

6.2.2.

Mission Programming

Before operation, the WBS2500 unit must be programmed with the appropriate Mission Configuration File. This would typically be performed by a technician with some specialist training, who
would use the FillGun function of the Mission Editor executing on a laptop PC to load the mission
file into the unit’s memory via its Comms port and then perform some basic checks to verify that
the unit is ready for operation.
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6.2.3.

Operation

Once it has been loaded with a Mission Configuration File, the WBS2500 unit will perform the specified jamming operation whenever it is switched on. Hence the operational user requires only
some basic training to instruct him how to turn the unit on and off and how to monitor and interpret
the status and alarm indicators on the equipment.

6.3.

User Software

WBS2500 system is supplied with a user piece of software - the Mission Editor GUI - to support
the creation and editing of Mission Configuration Files and the loading of these into the fielded
equipment.

6.3.1.

Mission Editor

The Mission Editor is a standard Windows GUI application that is used to create and edit Mission
Configuration Files. It allows a user to select the jamming modes, target frequencies, and related
parameters to be used by the system. This data is then stored in an encrypted Mission Configuration File that can be forwarded to users in the field to load into their systems.
A library of Mission Configuration Files can be built up and managed via the Mission Editor, allowing
any number of configurations to be created to cover different scenarios and situations.
Protected frequencies and bands can be defined, marking areas of the spectrum (such as Blue
Force communications) that must not be jammed. The editor will then prevent the user employing
any jamming frequencies that conflict with these regions.
Due to its nature, the Mission Editor is not recommended to be used by unskilled operators. It
should be operated by an experienced EW specialist with access to the latest threat intelligence,
technical details of target devices and signals, and an understanding of the advantages and disadvantages of the different jamming waveforms and techniques in order to create mission files that
are well optimised for a given situation. Elaman can provide high quality EW training led by personnel with recent service experience in counter RCIED operations and also optimised fills for various
theatres of operation.

Figure 6-2: Mission Editor GUI

The selected Mission Configuration File is loaded into the WBS2500 using the FillGun feature of the
Mission Editor. This allows selection of the required file from a file directory and provides feedback
that the file has been successfully loaded into the unit. Connection from the laptop PC to the unit is
via a serial (RS232) or USB interface. Loading of the Mission Configuration File is rapid, the operation takes less than 30 seconds. The FillGun function can also be used to load the WBS2500 with
updated firmware.
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7.

Training

7.1.

Training Ethos

The aim is consistently to deliver world class training solutions that exactly meet the customer requirement. In addition, our mission is to build a partnership so that customers feel confident in
Technology’s people, products and practices throughout a long-standing relationship.
Each of our instructors are field-proven experts in their respective fields, who combine teaching
with the ability to assist in developing customer doctrine and tactics.
A flexible training approach means that training can be delivered in the UK, or at customer-specified
locations throughout the world.

7.2.

The Training Courses

Whether you operate in the civil or security sectors, the specialist’s knowledge and expertise provides flexible high quality training, designed to ensure that personnel have knowledge to excel
when conducting operations. While our training courses have been carefully designed to meet all
our customers’ needs, we can also offer specifically tailored courses to meet specific customer
requirements. Our training programme covers the entire spectrum from Electronic Countermeasures (ECM) training equipment, and Counter Radio Controlled Improvised Explosive Device
(CRCIED) equipment, to satellite monitoring systems and cryptographic equipment.

7.3.

Product Training

Elaman offers comprehensive product training courses for both Operators and Maintainers. Our
dedicated training team has an in-depth understanding of the entire product range, which is further
enhanced by extensive individual experience of operational scenarios.
The WBS 2500 training can take place in the UK in conjunction with a factory acceptance test (FAT)
if required.

7.4.

Specialist Training

Elaman can provide personnel with wide-ranging ECM experience and expertise. This includes specific knowledge regarding ECM in relation to Explosive Ordnance Disposal (EOD) operations, VIP
protection and Force Protection.

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