Hemisphere GPS Crescent Vector H220 - Page 46

H220 Integrator Guide Appendix C-Technical Specifications Page C4
Table B-6: Aiding Devices
Device Description
Gyro
Provides smooth heading, fast heading reacquisition. During loss of GNSS
signals heading stability is degraded by <1
○
per minute for up to 3 minutes
5
.
Tilt sensors Provide pitch and roll data and assist in fast startup and reacquisition of
heading solution.

1
Dependsonmultipathenvironment,numberofsatellitesinviewandsatellitegeometry
2
Dependsonmultipathenvironment,antennaselection,numberofsatellitesinview,satellite
geometry,baselinelength(forlocalservices),andionosphericactivity
3
Basedona40secondtimeconstant

4
HemisphereGNSSproprietary
5
IMOstandard
6
Receiveonly,doesnottransmitthisformat
7
Understaticconditions