Skip to main content
Plane on runway

Total airport solutions


Systems Interface Ltd. (SIL), is a Global ATM Systems Integrator based in England, United Kingdom. 
For 4 decades SIL has been designing and delivering integrated Air Traffic Management (ATM) solutions and technical consultancy services to clients from civil and defence aviation authorities worldwide. SILs footprint extends across +40 countries, showcasing its extensive installed base and global reach. 

SIL are a dynamic project-based organization specializing in ATM System Integration, managing complex technical and logistical requirements. Collaborating with world-leading manufacturers, SIL source and supply fully integrated bespoke solutions in the following aviation domains:

Navigation (Navaids)
Solar Airfield Lighting 

SIL services include system design, turnkey project management delivery, installation & commissioning (including new installations and upgrading existing ATM systems), safety cases, training, maintenance, civil works and consultancy services.

More about us


teaser image for SIL news, IAC Casement aerodrome

SIL awarded Navaid Contract by the Irish Air Corps

Systems Interface Ltd. (SIL) has secured a contract awarded by the Irish Air Corps (IAC) on behalf of the Minister of Defence. The contract involves the Supply, Installation, and Commissioning of an Indra Doppler VHF Omnidirectional Range (DVOR) and 2 (two) Indra Distance Measuring Equipment (DME) at Casement Aerodrome, Baldonnel, Ireland.

SIL will install an Indra 1150A DVOR and an Indra LDB-103 DME, replacing the existing DVOR and DME installed in 2002, as well as a second Indra DME which will be co-located with the existing Instrument Landing System (ILS). The DVOR and both DMEs will use licenced encrypted radio links to provide full Remote Control and Monitoring. Additionally, SIL will conduct a refurbishment of the current DVOR counterpoise and provide a new fully insulated and air-conditioned fibreglass equipment shelter. These Navaid systems represent the most modern and reliable solutions available in the global market.

SIL will provide a complete turnkey service for the contract duration including project management, engineering design, installation, commissioning, training, testing and provision of flight calibration.

The Project team aim to conclude Q1 2025.

About the Irish Air Corps (IAC) and Casement Aerodrome:
The Irish Air Corps (IAC) is the air component of the Defence Forces of Ireland. Through a fleet of fixed and rotary wing aircraft, it provides military support to the Army and Naval Service, together with non-military air services such as Garda air support, air ambulance, fisheries protection, and the Ministerial Air Transport Service. 
Casement Aerodrome is a military base and is the headquarters and sole airfield of the Irish Air Corps (IAC). 


teaser image for SIL News, DME at Ireland West Airport IWAK

SIL complete installation of DME at Ireland West Airport

Systems Interface Ltd. (SIL), has completed a project in collaboration with Principal Contractor Tiernan Engineering Ltd. The project involved the supply, installation, and commissioning of an Indra Distance Measuring Equipment (DME) system at Ireland West Airport.

SIL replaced the outdated DME equipment with an advanced Indra LDB-103 Low Power DME with remote control and monitoring, a new mast and antenna, and the installation of a fully insulated and air-conditioned fibreglass equipment shelter.

A complete turnkey package was provided including project management, system design, equipment provision, installation and commissioning. SIL also provided the DME Safety Case, which secured approval from both the European Aviation Safety Agency (EASA) and the Irish Aviation Authority (IAA).

SIL successfully delivered the replacement DME system within the allocated budget and approval for operational use was granted on 27 November 2023.

About Ireland West Airport Knock (IWAK): 
Ireland West Airport (IWA) provides Air Traffic Management (ATM), Communication, Navigation, and Surveillance (CNS) systems. The site also hosts Met Eireann, providing essential Meteorological Services for Air Navigation.
818,000 passengers used the airport in 2023, making it the fourth-busiest in Ireland.


teaser image for SIL news, SIL win King’s Award for International Trade

SIL win prestigious King’s Award for International Trade

Systems Interface Ltd. (SIL) has been honoured with a King’s Award for Enterprise for International Trade, in recognition of its outstanding short-term growth in overseas sales over the last three years. Announced Monday 6 May 2024, SIL has been recognised for its excellence in International Trade and is one of 252 organisations nationally to be recognised with a prestigious King’s Award for Enterprise.

Established in 1982 and located in Bordon, Hampshire, SIL is a global Air Traffic Control (ATC) Systems Integrator encompassing the domains of communication, navigation, meteorology, ATC towers and design consultancy. SIL delivers turnkey aviation engineering projects to civil and defence airports worldwide and its footprint extends across 40+ countries, demonstrating its extensive installed base and global reach.

SILs revenues are distributed across its primary market regions: UK/Ireland, Europe/Central Asia, Africa/Middle East and Rest of World. Over a three-year period, overseas sales increased exceptionally and contributed to around 70% of all sales.

“I am immensely proud that this prestigious award has been bestowed upon Systems Interface. We trade in some of the most complex overseas markets where we have significantly grown our market share in recent years. The award reflects the huge effort made by every member of staff in the business who have all made significant contributions to building our business. In 2024 we are positioned for a further step increase in our order intake, we aim to continue this trend over the coming years,” says Andrew Madge, Managing Director, SIL

The King’s Awards for Enterprise, previously known as The Queen’s Awards for Enterprise, were renamed last year to reflect His Majesty the King’s desire to continue the legacy of HM Queen Elizabeth II, by recognising outstanding UK businesses.
The Award programme, now in its 58th year, is the most prestigious business award in the country, with successful businesses able to use the esteemed King’s Awards Emblem for the next five years.


teaser picture for SIL news, NDB at Tuzla International Airport Bosnia and Herzegovina

SIL replace Air Navigation Aid at Tuzla International Airport

Systems Interface (SIL), based in the UK, has completed a Turnkey contract to supply, install and commission a replacement Non-Directional Beacon (NDB) at Tuzla International Airport in Bosnia Herzegovina.

SIL was awarded the contract by Roaming Networks d.o.o. Banja Luka on behalf of Bosnia and Herzegovina Air Navigation Service Agency (BHANSA). SIL replaced the airports legacy equipment with a high quality and reliable Nautel Vector 250W NDB Transmitter and 375W Antenna Tuning Unit (ATU) complete with full Remote Control and Monitoring, to limit worker exposure to Radio Frequency (RF) fields. SIL also provided overall project management, a two-day On-Site engineer training course and attended the Flight Check.

To date SIL has installed over 200 Nautel NDB’s at airports around the world.

About Tuzla International Airport
The airport is Bosnia and Herzegovina second largest airport and is known as a low-cost airline hub for the people of Bosnia and neighbouring countries Croatia and Serbia. Passenger traffic to date is currently over 550,587.


teaser image for SIL news, DVOR/DME for Banjul International Airport

SIL to replace DVOR/DME for Banjul International Airport

Systems Interface  (SIL) has been awarded a contract by the Gambian Civil Aviation Authority to design, supply, install and commission a replacement Doppler VHF Omnidirectional Radio Range (DVOR) and co-located Distance Measuring Equipment (DME) at Banjul International Airport, The Gambia.

SIL engineers will install a Selex 1150A DVOR and a Selex 1119A High Power DME. Both the DVOR and DME will have full Remote Control and Monitoring and Remote Maintenance and Monitoring systems. 

The new DVOR/DME replaces the existing end-of-life equipment installed in early 2003 by SIL engineers. A new fully insulated and air-conditioned Fibreglass (GRP) equipment shelter, manufactured in the United Kingdom, will also be supplied and installed by SIL. 

SIL will provide comprehensive Project Management services throughout the contract. Installation is scheduled to begin in early February 2024 and complete early April 2024. 

About Banjul International Airport 
The airport is located 23km from the capital Banjul in Yundum and is Gambia’s only airport. The airport handled over 475,000 passengers in 2019.


teaser for SIL news, ILS/DME System at Jersey Airport

SIL install a new ILS/DME System at Jersey Airport

Systems Interface (SIL) has successfully completed a turnkey contract for the design, supply, installation and commissioning of a replacement Instrument Landing System (ILS) with Distance Measuring Equipment (DME) on Runway 26 at Jersey Airport for Ports of Jersey. 

Systems Interface provided a complete project management service throughout the contract including, an onsite two-week manufacturer’s training course.  

The new system entered operational service on time ahead of the busy summer schedule. Systems interface installed a Normarc 7000 series ILS consisting of a two Frequency Dual Transmitter Localizer (LOC) with a 12-element two frequency LOC Antenna system; a two-frequency dual transmitter Glide Path (GP) system and M-array GP antenna system, including monitor mast and a Normarc low Power 100W DME including antenna. The ILS system has full Remote Control and Monitoring and Remote Maintenance and Monitoring Systems. 

About Jersey Airport 
Jersey Airport air traffic control annually manages more than 100,000 flights within the 8,300 sq km of Channel Islands Airspace. Jersey Airport handled circa 1.66 million passengers in 2018.


teaser image for SIL News, Liverpool Airport Voice Communication System

SIL to install Voice Communication System at Liverpool Airport

Systems Interface (SIL), based in the UK, has been contracted by Air Traffic Control Services Limited (ATCSL) to provide design, installation and integration services along with project management and safety-case provision for a new voice communications system (VCS) project at Liverpool John Lennon Airport. 

The Airport chose Systems Interface to help them make the transition to IP-communications because of their design and installation experience along with their proven track record for delivering complex projects on time and in budget. 

The system includes a Frequentis VCS and Contingency C-VCS to replace Liverpool John Lennon Airport’s legacy Frequentis system. 

The VCS will include a total of 15 Controller Working Positions located in the Visual Control Room (VCR), the Approach Control Room (ACR) and the Engineering area, including contingency position equipment. The airport chose Frequentis based on the reliability of their previous Frequentis VCS and the excellent through life support provided. Frequentis will supply its VCS3020X for the main system and its next generation X10 VCS system for the backup, in a cloud native environment. 

Designed for IP radio and telephone connectivity the Frequentis VCS sets the benchmark among controllers and is fully compliant to ED-137B EUROCAE VoIP standardisation. The flagship VCS3020X product is the leading solution to end-to-end IP implementations for approach and area control centres of any size, while the -X10 implements the multi redundancy concept including parallel audio delivery for every air/ground connection to guarantee uninterrupted audio.


teaser image for SIL News, DME system at Ireland West Knock Airport

SIL to install a new DME system at Ireland West Knock Airport

Systems Interface (SIL) has been contracted by Principal Contractor Tiernan Engineering to supply, install and commission a replacement Distance Measuring Equipment (DME) system with full remote control and monitoring and remote maintenance for their client Ireland West Knock Airport. 

SIL will replace the existing end-of-life equipment with a Normarc Dual 100W Low Power DME, a replacement Mast and Antenna along with a new Prefabricated Fibreglass Equipment shelter.

SIL’s installation and commissioning service includes full project management and ground-based flight check support. SIL will also provide the DME Safety Case to facilitate the approval of the new system by the European Aviation Safety Agency (EASA) and the Irish Aviation Authority (IAA). 

SIL have over thirty years of experience installing safety critical land-based navigation systems at airports and En-route locations around the world thereby earning themselves an enviable reputation for delivering Navaid and Air Traffic Control projects on time and in budget.


teaser picture for SIL news, ATIS Systems at airports in Central Asia

SIL install four ATIS Systems at airports in Central Asia

Systems Interface (SIL), based in the United Kingdom, has completed a Turnkey contract to supply, install and commission four ATIS (Automatic Terminal Information Service) systems at four airports in a central Asian state.

The Turnkey contract, in cooperation with SIL’s key supplier Copperchase, was delivered on-time and in budget by SIL engineers over a three-week period. The contract was project managed by SIL throughout, including training for local engineers and Air Traffic Controllers. 

This state-of-the-art equipment provides a cost effective and reliable automated system for the country’s Air Navigation Service Provider. It is designed to provide automated delivery of meteorological and operational aerodrome information to arriving and departing aircraft, as well as current and forecast weather at alternative aerodromes. 

The system is designed to integrate with ED-137 standard VoIP (Voice Over IP) radios and has the potential to be upgraded to include a D-ATIS (Digital - Automatic Terminal Information System).


Manage cookies