GNSS Aerial Type RNAV
You can never know exactly where the satellites will be in relation to your present position, and the GNSSGNSS —Global Navigation Satellite System signal has to work no matter what orientation the user segment is in. Consider the fact that your mobile phone will track your position irrespective of how you hold it. Consequently, the best aerial will be the one that works with all orientations. As with your mobile phone aerial, this aerial is helical.