But who will be willing to switch from GPS...
It will be super easy in India.
A simple rule change and All phones and electronics will mandatorily have to carry the chip for IRNSS.
Even China and Russia did the same thing.
So that is 1.3 billion people captive market using the new system in one go.
Secondly, we can always persuade our neighbouring countries like Bhutan, Nepal, Bangladesh and Sri Lanka. They can have a combined system with IRNSS/GPS/GLONASS all working.
Lastly, you never know, Iran might be wiling to diversify its bets and add the chip to its country use as well.
The potential is immense.
Without this, we would be the only large country in the world not using our own GPS system.
Chinese have Beidou, Russians GLONASS, US Navstar GPS and Europeans Galileo.
6 down and 1 more to go . 7th one, IRNSS-1G will be launched next month. So by second quarter India will have its own regional GPS. Definitely a commendable job, the precision is 10-20 metres, while the GPS has 2-4 meters and worse-case is ~8m. The IRNSS-1F has a 12-year mission life. What about the rest of the Satellites?.
Accuracy is low compared to Navstar GPS then. Substantially lower.
I guess and hope that it would be improved in the future.