sparkfun NEO-M9N - Hardware Assembly and Performance; Assembly and Single Constellation Performance

When using a single GNSS constellation:
Constellation GPS GLONASS BEIDOU Galileo
Horizontal Position Accuracy 2m 4m 3m 3m
Max Navigation Update Rate PVT 25Hz 25Hz 25Hz 25Hz
Time-To-First-Fix Cold Start 29s 27s 32s 42s
Hot Start 2s 2s 2s 2s
Sensitivity Tracking and Navigation -166dBm -164dBm -160dBm -159dBm
Reacquisition -160dBm -155dBm -157dBm -154dBm
Cold Start -148dBm -145dBm -145dBm -140dBm
Hot Start -159dBm -156dBm -159dBm -154dBm
Velocity Accuracy 0.05m/s 0.05m/s 0.05m/s 0.05m/s
Heading Accuracy 0.3deg 0.3deg 0.3deg 0.3deg
Hardware Assembly
Update Rate
Time-To-First-
Fix
Cold Start 24s 25s 26s 28s
Hot Start 2s 2s 2s 2s
Sensitivity Tracking and
Navigation
-167dBm -167dBm -167dBm -1667dBm
Reacquisition -160dBm -160dBm -160dBm -160dBm
Cold Start -148dBm -148dBm -148dBm -148dBm
Hot Start -159dBm -159dBm -159dBm -159dBm
Velocity
Accuracy
0.05m/s 0.05m/s 0.05m/s 0.05m/s
Heading
Accuracy
0.3deg 0.3deg 0.3deg 0.3deg