Time to First Fix
How quickly can your device generate an accurate position and time, from a variety of startup states?
What signal level is required before your device can acquire, and retain a satellite fix?
After a temporary loss of signal, how soon does your device find its position again?
Both when it’s static and moving, how accurate is the position provided?
Resilience to Interference
How well does your device cope with signal interference – both natural and man-made?
Resistance to Attack
Can your device resist, or identify, deliberate jamming and spoofing attacks?