GPS-based navigation system from February | Deccan Chronicle DC | S. Sujatha | 31st Jan 2014 Chennai: GPS Aided Geo Augmented Navigation or Gagan will become operational in February this year. â€œWe will remove the code that has been set for the last one year to use Gagan on a test basis so that anyone with a receiver and access to the application can use the satellite-based navigation system,â€ said S. V. Satish, GM-Air Traffic Management, Gagan project, Airports Authority of India (AAI). Its service area would be restricted to the Indian subcontinent and the Indian flight region. Satish said that it could improve on the 25-m accuracy and integrity information provided by GPS. The aviation sector would benefit the most, he said, as it need not depend on ground-based navigational aids. â€œWe will have aircraft develop procedure based on Gagan. It will help provide vertical guidance, thereby shortening the route and resulting in less fuel consumption. We can also create flexible routes and noise pollution will be reduced.â€ However, Gaganâ€™s full incorporation into Indian aviation would be a gradual transition, taking from three years to a decade, as â€œAircraft need to be equipped with a receiver to get its signals,â€ Satish pointed out. He further said that there could be heavy costs to be incurred to integrate Gagan into old aircraft. The aviation industry would therefore be given enough time to merge into the new system. Aircraft manufacturers have already been given the platform to receive signals from Gagan in the Satellite Based Augmented System (SBAS) receiver. According to the AAI, India joins the US, Europe and Japan to get on to the SBAS bandwagon. â€œA little improvement to the present GPS system is enough to receive signals from Gagan,â€ he said, adding that the cost of the basic receiver chip starts at $10, the complete receiver system working out to $3000.