S100 User Guide – Rev. D – June 2005 67
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5
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The default modulation envelope is AM.
Time Code Settings - This confirms the settings:
• Time Code = The time code in setting
• Code Modulation = The modulation type associated with the time code signal
• Time Code Out = The time code out setting
• Generator Time Offset = This shows any offset to the time code signal being produced by
the timing engine.
Clicking Reset lets you clear any data you’ve entered, and Submit implements changes
you have made.
GPS Information
This section of the admin menu appears only if you have the GPS option on the S100.
The following items give details on GPS activity:

GPS Health

This screen updates the signal status. This example shows a normal screen.
The error codes are encoded into individual bits within the byte. The bit positions and their
meanings are shown below.
Bit Position Meaning if bit value = 1
0 Battery back-up failed (1)(4)
1 Signal processor error (1)
2 Alignment error, channel or chip 1 (1)
3 Alignment error, channel or chip 2 (1)
4 Antenna feed line fault (2)
5 Excessive ref freq. error (3)
Figure 4-14: GPS Health Status