HAYSYS Limited

Welcome to the website of HAYSYS Limited
where you can find details of our latest project developments, products and services offered
Why Choose HAYSYS?
Direction Finding System
for Military and Civil Air Traffic Control. The DF System uses the Doppler principle to provide the users with the relative direction, in degrees, of radio transmissions from aircraft and operates at both UHF and VHF frequencies.
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UK Auto-Triangulation System
Emergency position fixing system, providing Distress & Diversion service to all aircraft (both Military and Civil), in the UK Airspace.
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About Us

HAYSYS is an electronic design company that focuses on a wide variety of commercial, industrial and defence applications. Many of our products have been designed for both the Air Traffic Management sector and the Electricity Distribution Networks.

Our Precision Direction Finding Systems are used in both Military and Civil Airports across Europe and the world.

HAYSYS has the capability to provide full ‘turnkey’ solutions for a wide range of developments – from the concept/specification stage right through to final production and the on-going support of all our products.  This includes the supply of Shelters and the complete Civil Works requirement.

Some of our Products and Systems


VHF and UHF Precision Direction Finding Systems

Used by Military and Civil Airports across Europe and the World, increasing the spatial awareness of Air Traffic Controllers.

Auto-Triangulation Systems

Emergency position fixing system used by Military and Civil Aircraft, providing a Distress and Diversion service.

Phase Identification Unit (PIU)

Handheld unit identifying the electrical phase of supplies to residential properties, without connecting anything to the electricity network or needing to gain access to properties.

FeederNet System

Low Voltage (LV) Substation Monitoring system - giving you all you need to know about the performance of your substation assets.

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DF Systems Installed Worldwide
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of providing Systems and Solutions
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Products Delivered

Design Services


Design Specifications

First stage of a development project - Formalise the design specification and requirements, providing traceability.

Digital Design

Design service based upon digital technology, such as micro-processors and FPGA's.

Analogue Design

Design service based upon Analogue circuit design, coupled with our Digital design capability, providing the complete hardware and equipment solution.

Printed Circuit Board Design

Printed Circuit Board design using the industry design software tool - Altium Designer. We can take the design and create the perfect PCBs, as well perform many types of analysis.

System Design

Complete system design - bringing all elements and equipments together, including all communications between equipments using standard and custom protocols.

Quality Management

Supply of electronic hardware and software design service, and associated material, for both new and existing designs including digital, programmable logic and microprocessor based designs. Supply of electronic hardware and associated materials in support of new and existing hardware. Support of existing designs through Post Design Services (PDS) and hardware repair services.

Latest News


VDF System at Linz Airport, Austria – Approved as Class A

Austro Control in Vienna, have approved the HAYSYS VDF System installed at Linz Airport, as Class A (+/- 2 degrees accuracy).  The approval follows a …

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CAA Approved VDF System, transitions at Cambridge Airport

HAYSYS VDF System is approved by the UK CAA as a ‘Class A’ DF System at Cambridge Airport.

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HAYSYS are an accredited Living Wage Employer

HAYSYS is a Living Wage Employer. This activity supplements our existing Corporate and Social Responsibility policies. Providing the reassurance to our current and prospective employees, …

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