C-Nav 2050M User Manual - page 21
of
166
C-Nav2050 User Guide
COCOM Limits
The U.S. Department of Commerce requires that all
exportable GPS products contain performance
limitations so that they cannot be used in a manner that
could threaten the security of the United States. The
following limitations are implemented on the C-Nav2050
GPS Receiver.
Immediate access to satellite measurements and
navigation results are disabled when the receiver’s
velocity is computed to be greater than 1000 knots (515
meters per second), or its altitude is computed to be
above 18,000 meters. The receiver continuously resets
until the velocity and altitude are found to be below the
specified COCOM limits.
xix