such as the wide area augmentation system (WAAS) to conduct localizer performance with vertical guidance (LPV) approaches, in addition to having the ability to perform required navigation ...

Also called a "differential GPS" (DGPS), an augmentation system compensates for those discrepancies by transmitting corrections to the GPS receivers either via satellite or terrestrial radio.

The six helicopters were modernised with the BasiX-Pro Glass Cockpit Retrofit Kit, the company said in a statement on 13 ...