Case IH AFS Pro 700 Software Operating Manual page 174

"RTK Security Expires"
The "RTK Security Expires" window reports the expiration
date for the current RTK subscription.
The information is available regardless of whether the sig-
nal is currently in use or not. A message appears once per
day when the RTK security subscription is within 14 days
of expiration.
The message appears only if RTK is selected in the
"DGPS Type" window.
NOTE: The display must be powered ON within the 14
days prior to the expiration date for the message to be
displayed.
"Age of RTK"
Placement label: Age of RTK
The "Age of RTK" window reports the time interval since
the last message from the base station to the GPS re-
ceiver. The value is in seconds.
A typical value should be approximately 1 s. Any value
over 3 s indicates a problem with reception of the signal
from the base station. This may be caused by:
• An obstruction between the base station and the vehicle
OR
• A problem with the base station itself
If the delay reaches 5 s, the "GPS Status" window reports
a fault condition, and the system is not available for use.
"GPRS Status"
The "GPRS Status" window reports the current status of
the GPRS signal.
3 - SETUP
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