C-Nav 2050M User Manual - page 108
C-Nav2050 User Guide
links from the reference stations use the Internet as the
e
he correction accuracy is not impaired.
rs maintains
rs is sent to the two independent
ork is
itioning
e use of
primary data link and are backed up by dedicated
communications lines, but in fact the network is
sufficiently dense that the reference stations effectively
act as back up for each other. If one or several fail, th
net effect on t
There are two continuously running processing centers,
each receiving all of the reference site inputs and each
with redundant communications links to the uplink LES.
The LESs are equipped with two complete and
continuously operating sets of uplink equipment
arbitrated by an automatic fail over switch. Finally, a
comprehensive team of support enginee
round the clock monitoring and control of the system.
The network is a fully automated self-monitoring
system. To ensure overall system integrity, an
independent integrity monitor receiver, similar to a
standard C-Nav user receiver, is installed at every
reference station to monitor service quality. Data from
these integrity monito
processing hubs in Torrance, California and Moline,
Illinois. Through these integrity monitors the netw
continuously checked for overall SBAS pos
accuracy, L-band signal strength, data integrity and
other essential operational parameters.
How to Access the C-Nav Correction Service
The C-Nav Correction Service is a subscription service.
The user pays a subscription, which licenses th
the service for a predetermined period of time.
Subscriptions can be purchased for any predetermined
period of time and are available via a C-Nav authorized
representative, or by contacting C-Nav
at:
authcode@cnavgps.com
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