Project references

The following list shows projects carried our by Reelektronika for providers and users of integrated navigation systems, the General Lighthouse Authorities of the UK and Ireland, VT Communications, the European Commission, the Steering Committee of NELS (Northwest European Loran-C System), ESA, Megapulse, Inc., and the Saudi Ports Authority

Installation of Eurofix service for VT Communication Group, Ltd

VT Communication Group have selected reelektronika as their partner to deliver an installation for providing a Eurofix service via the eLoran transmitter in Anthorn, Cumbria, UK. The delivery consisted of Eurofix generation equipment, as well as a Differential eLoran station, Eurofix monitors, as well as local and remote system controllers all linked via a VPN.

Differential eLoran trial for the General Lighthouse Authorities of the UK & Ireland

The GLA’s of the UK & Ireland have contracted reelektronika for a trial to demonstrate the potential of Differential eLoran in the area and approach channel to Harwich harbour. The tasks consisted of generating high-accuracy ASF maps, as well as generation of real-time Differential eLoran corrections and broadcasting via Eurofix to a measurement vessel.

Upgrading three Saudi Loran-C chain with Eurofix DGPS service

Reelektronika and Megapulse, Inc., (MA USA) are contracted to supply reference stations, integrity monitors, and signal modulation equipment at the Saudi Loran stations Ash Shaykh, Afif and Al Muwassam to enable Eurofix service from the Eastern Mediterranean through Suez, the Red Sea, and into the Gulf of Aden. The Saudi Positioning System (SPS) is scheduled to begin by the end of 2004.

Integrated GPS/Loran for Harbor Entrance and Approach (HEA) Operations: The FAA contracted Megapulse, Inc. (MA USA) with its subcontractors Reelektronika (The Netherlands) and Sitex Koden (Japan) for the supply of equipment and services in support of the Loran Recapitalization and Evaluation Program. It is to be evaluated whether Loran can provide the required levels of accuracy, availability, integrity, and continuity to support Harbor Entrance and Approach (HEA) maritime operations.

Miniature integrated GPS/Loran-C/Eurofix receiver

Reelektronika in a joint operation with the steering committee of NELS (Northwest European Loran-C System) is developing a physically small integrated receiver based on Loran-C, Eurofix and GPS. The project’s intention is to manufacture a pilot series of such receivers in order to let potential applicants use these units.

UTC service via Loran-C and Eurofix

Reelektronika is developing on request of NELS a wide-area UTC (universal time co-ordinate) service which brings accurate time to users who are in range of a Eurofix station. All four Eurofix stations will get this service which then covers about 240 million Europeans in Norway, Denmark, Germany, France, Benelux and the UK. In addition, Reelektronika is developing special UTC user receivers that will provide accurate UTC all over the coverage area taking into account the propagation path delay between the provider station and the user.

ASF validation receiver

On request of NELS, Reelektronika is developing a special instrumentation system that can accurately measure the propagation time of Loran-C signals between the transmitter and the receiver. This test equipment setup will be used to validate computed ASF (additional secondary phase) data established by the University of Wales (Prof. Last)

Data Grabber for Loran-C research: Reelektronika developed and implemented special data grabber equipment for the Avionics Engineering Center of Ohio University to carry out research on Loran-C signal reception on board aircraft.

GALA: Reelektronika was has been sub-contractor in a large consortium led by Alcatel Space Industries (Toulouse) on the EC-study on the Galileo Overall Architecture Definition. Our company focuses on the Work Package “Preliminary Identification of Other Systems” as described in WP 2.2.4. Space-based as well as ground-based systems are investigated, e.g. GPS, GLONASS, EGNOS, Eurofix, LORAN-C and Chayka, Datatrak, UMTS and typical aeronautical aids.

GLORIA

MAN Technology (München) is leading a consortium of German, Austrian, Swiss and Dutch companies to investigate the capabilities of integrated radionavigation systems based on a mix of GPS, GLONASS, Loran-C, EGNOS and Eurofix for use in rail and road traffic. Reelektronika’s main task in this EC-study is to develop and prototype the integrated navigation receiver. This receiver tightly couples the DGPS derived pseudoranges with the Loran-C peudoranges in order to establish a continuous calibration of the measured Loran-C ranges. The primary goal is to improve availability in GPS-hostile environments. Test carried out by TeleConsult Austria demonstrated a significant reliability improvement over sole-means GPS.

EGNOS TRAN, Phase II

Reelektronika is sub-contractor to Telespazio S.p.A. in ESA’s EGNOS TRAN project. Reelektronika designed and implemented a special Eurofix message to broadcast DGPS and integrity data that are derived from a Thales EGNOS receiver installed at the Loran-C/Eurofix station at Sylt. The station broadcasts simultaneous standard local-area DGPS data and EGNOS-derived DGPS data. It is investigated whether there is any difference in accuracy between the two systems.