NavCom RT-3020 Rev.A - Manual (Page 7)

RT-3020 User Guide
v
Global Positioning System
Selective availability ( S/A code) was disabled on 2 nd May
2000 at 04:05 UTC . The United States government has
stated that present GPS users do so at their own risk.
The US Government may at any time end or change
operation of these satellites without warning.
The U.S. Department of Commerce Limits
Requirements state that all exportable
GPS products
contain performance limitations so that they cannot be
used to threaten the security of the United States.
Access to satellite measurements and navigation results
will be limited from display and recordable output
when predetermined values of velocity and
altitude are
exceeded. These threshold values are far in excess of
the normal and expected operational parameters of the
RT-3020
GPS sensor.
Use of this Document
This User Guide is intended to be used by someone
familiar with the concepts of
GPS and satellite surveying
equipment.
Note indicates additional information to make better
use of the product
Indicates a caution, care, and/or safety situation,
Warning indicates potentially harmful situations.
Items that have been ITALICIZED indicate a term or
acronym that can be found in the Glossary.
Revisions to this User Guide can be obtained in a digital
format from
support.navcomtech.com