New Zealand’s air navigation service provider, Airways Corporation of New
Zealand Ltd. (Airways), was seeking out a cost-effective solution to providing
Air Traffic Control surveillance in an area of the country which had not been
covered by traditional radar. They decided to cooperate in this project with the
ERA Company because the Multi-sensor Surveillance System (MSS) by ERA is a
modular system easily adaptable to any terminal and wide area requirements
as well as all terrain challenges. The sensors can also be easily mounted
at most locations, including for instance, the well-preserved areas of New
Zealand’s national parks due to their resistance to adverse weather conditions
and their minimal impact on the environment.
ERA had been awarded another contract by Airways for an extension in June,
2013. The need to extend the system came about as the Queenstown airport
had become busier and needed better coverage. Having demonstrated its
abilities, ERA was asked to extend the WAM system at Queenstown through
the installation of additional sensors.
ERA, the primary contractor for Airways New Zealand, deployed its first MSS
multilateration and ADS-B surveillance system for Queenstown airport in New
Zealand in 2009. MSS, which has been installed around Queenstown airport in
primarily mountainous terrain, serves the Wide Area Multilateration (WAM). The
system then consisted of 15 ground stations and had been designed for 24/7
operation. Some of the stations are placed in locations thousands of meters
above sea level and can only be reached by helicopter which means they are
consequently powered by energy obtained from solar panels.
Three years later ERA proposed hardware delivery and project services for
an expansion to enhance surveillance coverage of the original system through
adding seven remote ground stations. The configuration of
the WAM expansion comprises: seven receiving/transmitting
stations, one upgrade of the current receiving/transmitting
station, one transmitting station and two reference and
monitoring transponders. The site infrastructure, including the
power and communications links, was provided by Airways.
The installation of the new equipment was completed
in the 2013 summer season and was followed by the
completion of the SAT (Site Acceptance Test) in the latter
part of 2013.
Airways New Zealand
Airways is New Zealand’s
Air Navigation Service
Provider (ANSP). Its 750 staff
manages New Zealand’s 30
million square km of airspace,
providing air traffic control,
flight inspection, mapping and
airspace design services.
WAM Queenstown – the original deployment of 15
ground stations at flight level 100.
The net of stations and coverage after the extension
(seven additional GS) at flight level 100.
“Airways New Zealand has awarded a contract to ERA of
the Czech Republic to expand the multilateration
network at Queenstown Airport to the lower part of
the South Island of New Zealand. This contract reflects
the confidence that Airways has with the performance of the
existing system and will provide Air Traffic Control surveillance in
an area of the country that is not currently covered by radar.”