7200 TROUBLESHOOTING
E - 18
10.0 Intelsat (IESS-412) Tracking Errors
10.1 "Intelsat data expired" Error Displayed
An "Intelsat data expired" error may be displayed if the current date/time is greater
than 170 hours after the epoch. Update the data as required.
10.2 "Intelsat pre-epoch prediction" Error Displayed
The error "Intelsat pre-epoch prediction" will be displayed if the current date/time is
before epoch on the 11-element set report. The previous (unexpired) set should be
used until the current date/time is after epoch.
10.3 "Intelsat data invalid--cannot track" Error Displayed
The error "Intelsat data invalid--cannot track" is displayed when the 11-element set
entered failed the 170 hour test (i.e., the predictions from the 11-element set at
epoch plus 170 hours do not agree with the latitude and longitude at epoch plus
170 hours on the 11-element set report. Check the values entered in the ACU.
11.0 Password Lost
If a password is lost, it must be cleared and a new password must be entered
because the 7200 ACU has no provision to recover a lost password. Follow the
procedure in Appendix B of this manual to clear the password and enter a new one.
NOTE: To prevent movement of the antenna by the ACU while
resetting a password, press the DRIVE ENABLE button on the
front panel of the ACU.
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