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About the WING

The Radio and Electronics Wing undertakes research and development projects in a variety of challenging environments ranging from large scale defence related projects and defence technologies to provide strategic level benefits to various branches of the Tri-Forces. Electronics, Instrumentation, UAV systems, development of communication systems, radars, jammers, electronic warfare systems, and computer embedded systems are some of the broader categories which the wing is currently focusing on.

Ongoing Projects

1. Development of Tactical Passive GSM Interceptor and Radio Monitoring Device
2. Capacity Building in the Area of RF and Microwave Field and Design of a Synthetic Aperture Radar (SAR)
3. Design and Manufacture of Professional Mobile Radio System for Military Communications

Wing Head

Cdr RMGC Nawarathne RSP USP psc

Completed Projects


Drone Jammer is an equipment which use strong electromagnetic signal to disturbed the drone control frequencies. The equipment is highly mobile and can be used in any part of the country with minimum time. It disturbs the electromagnetic and GPS frequency ranges of Drones.

The project was handed over to Ministry of Defence.


This project is designed to enhance the skills of Army personnel on Jungle Lane Firing. The importance of the project is;
1. To create a system which is capable of providing a real experience for lane firing without live ammunitions.
2. Comply the double tap requirement.
3. To have maximum range of 50m to 60m with the targets.

The project was handed over to Sri Lanka Army.


The research involves designing of an artificial limb which can be controlled by brain. The importance of the project is;
1. To get the real hand experience for amputees by brain controlled robotic arm.
2. Design a prototype that response to specific hand movements for a selected amputee.
3. To develop the prototype that can be implement to any amputee.

The project was handed over to Sri Lanka Army.

1. A two wheeled tractor, modified as a remotely operated mechanical anti personal mine clearance system is utilised to clear anti personal mines by detonation.

2. The anti personnel mines are detonated by a flail mechanism. The flail system is implemented by modification of the tiller accessory with a gear mechanism. The control function of the design has been engineered by electronically controlled DC motors and mechanical accessories. To facilitate mobility in rough terrain ‘mud’ wheels commonly used with the tractor when ploughing paddy fields is has been modified. The total cost for the unit (including the tractor) is approximately Rs. 650,000.00. The prototype was completed by May 2010. At present further modification in the mechanical design is being done for commercialisation purposes.

Specific Features

a. A two wheel tractor modified to design the system.
b. Detonate the mines using a flail mechanism.
c. Used heavy duty rotor for demining.
d. Design for long term durability.
e. Designed to be remotely operated.

Development of a special purpose jammer to block the down link frequency for GPS related equipment. Further the device can be tuned to block the down link frequencies of Thuraya satellite phones if required.

Features of the Equipment

Blocking frequency. 1575.42 MHz which is downlink frequency of the satellite .
Output power. 20 watts.
Deployment. Indoor base station and outdoor antenna.
Power input. 230 VAC.
Expenditure 1 million (Material cost)

1. The Helium Balloon based Stationary Surveillance Platform is a tethered aerostat. A tethered aerostat is an aerial platform that has better performance than small helicopters or airplanes in aerial surveillance applications that require stationary, noiseless platform. The platform is inherently stable which lead to simpler control mechanisms with the advantage that the platform is not destroyed or mangled in the event of a system failure.

2. The platform can provide continuous ground surveillance for an extensive period of time (depending on the duration of battery power). A daylight operated wireless IP (Internet Protocol) camera with PTZ (Pan Tilt Zoom) capability is mounted on the underside of the aerostat. The real time video acquired is transmitted to the receiving station using a 2.54GHz (Wi Fi band) video link. The aerostat can also be fitted with a low-eight infrared camera for night time observations.

3. To provide stability in air an ellipsoid shaped PVC balloon inflated with helium is used as the aerostat. The ellipsoid shape ensures that the platform is kept stable under low/moderate winds due to its aerodynamic features. The aerostat is tethered to the ground by two nylon cords operated by winches. The prototype was completed and demonstrated in December 2010.

Specific Features

-A stable stationary platform in air.
-System is design to provide real time video images of the ground ( 1 square km at a height of 300 m).
-Balloon is filled by the helium
-High stability video recording can be handle.
-Can gather the data in short period.

The K3 jammer is a spot frequency low power jammer designed as a man pack. It was developed to inhibit LTTE remotely detonated IEDs. The jammer has a modest range of 100 meters to jam low power short range commercial transmission links. Bulk productions of these units were done in several stages. The version I was done in 2006/2007, version 2 in 2008. The version 2 was further upgraded to operate continuously from the vehicle power supply in 2009. The final bulk production of this modified version was completed by September 2009.

Specific Features

-Spot frequency jammer.
-Designed to block short range low power communication links.
-Designed to be man portable.
-DC operated (6 volts 12 amps), duration approximately 2 hours.
-Battery pack charging time, 4hours.
-Features available to be operated using vehicle DC supply for an unlimited duration.

This project is designed to develop a Vehicular version of K3V man-pack jammer which can be used to provide protection for troops and VIPs on vehicle convoys against Remote Controlled IEDs. Even though the threat for the use of this system is remote in the present context, the system has a lucrative defence market elsewhere.

Specific Features

-Spot frequency jammer.
-Designed to block short range low power communication links.
-Designed to be man portable.
-DC operated (6 volts 12 amps), duration approximately 2 hours.
-Battery pack charging time, 4hours.
-Features available to be operated using vehicle DC supply for an unlimited duration.

dification in the mechanical design is being done for commercialisation purposes.

1 This project was initiated on instructions by the Secretary Defence due to a request from the Department of Prisons. This device is a medium power outdoor type equipment and is successfully deployed to block mobile phones at the remand section of the Welikada prison. It has been designed to block the signal reception for GSM mobile phones. Further it Its’ design has been specially tailored for the high signal levels of mobile phone operators located at the vicinity of the prison. This prototype unit was completed and deployed in April 2011.

2. Further a low power indoor version has been also built which was completed in May 2011.

Features of the Equipment

-Blocking GSM frequency bands and output power:
-25 to 965 MHz, 20 watts. (16 dBi antenna gain).
-1805 to 1880 MHz, 20 watts. (16 dBi antenna gain).
-2110 to 2170 MHz, 20 watts. (16 dBi antenna gain).

-Range: 50 to 100 meters (depending on proximity of area to be blocked to BTS).
-Deployment : Stationary (outdoor).
-Cost (estimated): LKR 1million (include material costs only (Cost include, out door shelter and spares)).
-Power input. 230 VAC.

1. The secure device transposes or inverts signals or otherwise encodes a message at the transmitter to make the message unintelligible at a receiver not equipped with an appropriately set decoding device.

2. The heart of the secure device is the CMX264 frequency domain secure IC (Integrated Circuit) with separate transmit and receive paths for full duplex operation. The secure parameters of the IC are controlled by a microcontroller.

3. The secure device (prototype unit) is developed to encrypt speech signals from analog two wire telephones. A field deployable prototype is being developed to be incorporated with PRC 1077 tactical VHF radios used by the Sri Lanka Army. The project was completed on January 2010.

Specific Features.

-Prototype secure device for PRC 1077 radios has been developed.
-Items are being sourced to develop 4 additional units to test the system as a radio network.
-Encryption is done by secured scramble chip.
-Chip can generate 255 random access modeling for encrypt data.
-Selection can be handling by user programmers.

The prime requirement of this project is to develop the high nutrition/ high caloric ration pack with suitable packaging material which can be kept without any degradation of quality for an extended period. The menu in the ration pack has been cooked/processed with locally available commodities to suit the palate of the Sri Lankan soldiers psychology.

Economic Rugged RA400 cougar first handset for PRC1077

1. Cost effective, rugged RA 400 Cougar Fist Microphone developed for Cougar Radios by the CRD is modified to be used with the PRC 1077 VHF Tactical Radios in use by the SLA.

2. Microphone will replace the Clansman Handset used by radios. The mechanical Push to Talk (PTT) feature of the handset not robust and is subjected to failure.

3. The alternate Fist Microphone design, paves a reduction in maintenance costs by replacing the maintenance of two dissimilar handsets with a single hand set design compatible for both Cougar and 1077 radios. The cost of the new unit is approximately Rs. 22,000.00 (including the cable connector to the radio set). 100 units have been built by December 2010.

1. Cost effective, rugged RA 400 Cougar Fist Microphone developed for Cougar Radios by the CRD is modified to be used with the PRC 1077 VHF Tactical Radios in use by the SLA.

2. Microphone will replace the Clansman Handset used by radios. The mechanical Push to Talk (PTT) feature of the handset not robust and is subjected to failure.

3. The alternate Fist Microphone design, paves a reduction in maintenance costs by replacing the maintenance of two dissimilar handsets with a single hand set design compatible for both Cougar and 1077 radios. The cost of the new unit is approximately Rs. 22,000.00 (including the cable connector to the radio set). 100 units have been built by December 2010.

1. The Aim of this project is to develop a low cost light weight bullet proof vest which can protect the wearer from 9 mm small arms fire, with the same high quality of imported bullet proof west to be used by security forces. Initial work has been done using Dyneema yarn and a prototype tested as per the NIJ level 2 standard at the Panaluwa Range on 19th November 2011. As per the observations made further research is being undertaken at present.